Dear Readers,

the world of dentistry is changing at an incredible pace –

advancements in digital technology and material science

bring forth continuous innovation. The background of these

changes is complex and customers have to cut their way

through a dense network of information overload to find out

what they want and need. Which place would be better

suited for customers find answers to their questions and for

manufacturers to present their innovations than the world’s

largest dental trade fair, the IDS in Cologne? This year, the

event is highly international in scope again and covers an

exhibition space of 130,000 m2 in four halls. More than

1,750 exhibitors will present their news to the dental world.

At the 3M ESPE exhibition booth (number G 90, hall 4.2),

you will find our entire range of products and all relevant

information. This year’s “walk of uniqueness” will be a

stage for our diverse new products as well as a platform

for communication and knowledge exchange with and

between developers, researchers, practitioners and tech-

nicians. Focusing on changes in dentistry, this issue of the

Espertise Magazine will serve as a guide to some of our

innovative technologies and products presented at the

IDS like the Lava™ Chairside Oral Scanner C.O.S. or the

enlightening Elipar S™10 LED Curing Light.

Enjoy reading!

Gerhard Kultermann, Editor

3M ESPE, Seefeld, Germany

E D I T O R I A LOptimal individual workflow solutions for every dentist and dental technician ......................................................... 2Masterstroke of an army of talented and committed people ................................................................................ 4Revolutionary technology in practical use .......................... 6Automatic mixing – causing a revolution in impressioning . 7Acquisition of IMTEC offers new opportunities .................. 8Integration of traditional and new in urban structures – the Rheinauhafen ............................................................. 10Welcome to the unique world of 3M ESPE ........................ 12Inventors at work – creating a unique product profile ...... 14Practice workflows of past and present ........................... 16Education at the Academic Center for Dentistry Amsterdam ...................................................................... 18The Espertise concept explained by using the example of Filtek Silorane Low Shrink Posterior Restorative ..........20Knowledge transfer to dentists and dental technicians ....21Light – a valuable commodity ..........................................22

C O N T E N T

magazine No. 15 | MAR 2009magazinemagazinemagazinemagazinemagazinemagazinemagazinemagazinemagazinemagazinemagazineEspertise™

No. 15 | MAR 2009

3M ESPE is the only company which offers its dental

customers a complete digital workflow solution for

restorative dentistry. From impression taking to

framework veneering – a complete digi tal procedure

is available. However, the dentist or dental techni-

cian chooses the entry point to this workflow and

decides where to exit – dentists as well as laborato-

ries have diverse, highly advanced options.

Impression

The first step in the production of a restoration is

impression taking. With the Lava™ Chairside Oral

Scanner C.O.S., 3M ESPE offers a digital work-

flow solution for this step. The dentist captures

the digital impression in the patient’s mouth – due

to the high data density captured with the revolu-

tionary 3D-in-Motion technology, precise impres-

sions are obtained. The virtual model is displayed

at the touch screen and the dentist can review the

scan directly to control the precision. If required,

the dentist adjusts the preparation and additional

data are captured. Then, the impression is sent to

an authorized laboratory. Alternatively, the dentist

takes an impression in the conventional way – due

to the experience of 3M ESPE in developing

impression materials and devices for automatic

mixing, high-quality solutions are offered which

ensure best flow characteristics, an optimal set-

ting behavior and a homogeneous and void-free

mix leading to high accuracy.

Design

When the digital data captured with the Lava

C.O.S. arrive at the laboratory, the file is down-

loaded, margins are marked and the die is cut

virtually in a special software. The file is now

transmitted to the Lava C.O.S. Computer Centre,

where it is virtually ditched and the data is seam-

lessly articulated. If the dentist opts for the con-

ventional way of impression taking, the impres-

sion is sent to the laboratory as well. There, a

model is created and either scanned with Lava

Scan ST for virtual die cutting and margin marking

with the Lava Design Software or prepared in the

conventional way. If desired, the dental laboratory

outsources the scanning and construction proce-

dure to the milling center.

Fabrication

If the virtual model is constructed at the labora-

tory, it is sent to the Authorized Lava Milling Center

where the highly precise Lava Zirconia coping is

produced. If a different material was selected by

dentist and patient, the data is sent to authorized

3M ESPE partner laboratories and Rapid Manu-

facturing Centers where laser-sintered copings

and wax-resin patterns are produced. A traditional

production of the frameworks can also be adopted:

the data captured with the Lava C.O.S. are sent to

the laboratory and to a model manufacturing facil-

ity at the same time. Here, a stereolithography

(SLA) model is created which replaces the con-

ventional stone model. The SLA model is sent to

the laboratory for the production of the final resto-

ration using conventional processes. Materials

used in this process are for example gold, PFM or

glass ceramics.

Veneering

If desired, even framework veneering is integrated

into the digital workflow with the Lava

Digital Veneering System which is planned to be

launched in 2009. The veneers for Lava zirconia

Optimal individual workflow solutions for every dentist and dental technicianDieter Klasmeier and Laslo Faith, 3M ESPE, Seefeld, Germany

Digital technology meets material science

Conventional impression with Impregum™ Penta™ DuoSoft Impression Material.

Digital impression with the Lava™ Chairside Oral Scanner C.O.S.

Conventional stone model.

SLA model produced on the basis of data captured with the Lava™ Chairside Oral Scanner C.O.S.

Digital technology meets material science

2

Backstage Report

single crown copings are made of a glass ceramic

block which will be available in four colours and

two sizes. The veneers are planned with the new

full contour Lava Design Software 5.0 and milled

on the 5-axis mill Lava™ CNC 500 which will be

introduced in 2009 as well. The veneering is

mounted on the coping with Lava DVS Fusion

Porcelain and the complete restoration is fired

afterwards. Naturally, manual veneering tech-

niques are practicable as well.

Flexibility combined with high quality

These diverse possibilities offer a high flexibility

for dentists and dental technicians. In dentistry,

there is no ultimate workflow solution, but diffe-

rent processes are useful depending on the indi-

cation and the experience of the dentist or techni-

cian. Therefore, 3M EPSE enables its customers

to choose their preferred workflow that fits well

into the processes of the practice or the labora-

tory. However, there is even more behind the con-

cept of 3M ESPE than advanced digital technol-

ogy: the high quality of digital as well as

conventional processes is based on long-standing

experience of the company in material science as

well. Impression materials, zirconia, veneering

ceramics and resin cement – all materials are

based on extensive research and expertise.

Material science

An example for this expertise is the field of

impression. 3M ESPE is involved in the develop-

ment of impression materials since 1965, when

they launched the first polyether materials. Due

to its remarkable properties, the material con-

tributed decisively to improving the precision of

impressions and provided the basis for enhance-

ments leading to today’s state-of-the-art

impression materials which are offered by

3M ESPE for virtually every indication and tech-

nique.

Another example is Lava zirconia. 3M has been

developing ceramics for diverse purposes for

more than 60 years now. This basic knowledge

acquired over the years was used for the devel-

opment of dental ceramics like zirconia. Exten-

sive research was carried out to find an optimal

material composition and processing of this

material to ensure a consistent, high quality.

The winning team

Through a combination of state-of-the-art tech-

nology and material science, 3M ESPE ensures

high-quality results while offering an optimal flex-

ibility to the dental customer. Dentists and dental

technicians improve the efficiency of their work-

flow by integrating digital elements into their sys-

tem, but they still decide on their own which way

to take.

Milled zirconia framework and veneer.

Milled Lava™ Zirconia bridge framework.Conventional veneering in the laboratory.

Espertise™

magazine

3

No. 15 | MAR 2009

Interview with Dr. János Rohály, Chief Scien-

tist and Co-Founder of Brontes Technologies,

a 3M Company.

Dr. Rohály, who initiated the development of

the technology behind the Lava C.O.S?

The technology development started with the

research of Professor Douglas Hart, me and two

PhD candidates, Federico Frigerio and Sarah Sheng

Tan, from the Department of Mechanical Engineer-

ing at the Massachusetts Institute of Technology

(MIT) in 1999. Initially, we were planning to develop

the technology in cooperation with an industrial

partner in Taiwan. The idea was to explore three-

dimensional imaging of human faces and to develop

a novel single lens optical system as well as related

image processing algorithms to capture facial

expressions at video rate. The Taiwanese partner

had planned to use the real-time 3D imaging device

for helping animators to create life-like facial

expressions for characters.

What were your first developments and how

did the project evolve over time?

We started with a very fast image registration

algorithm by Professor Douglas Hart that we

used to process images captured by two cam-

eras in a stereo setup. This was interesting but

had its own limitations in achieving the flexibility

and real-time speed we were after. It gave us the

motivation to move towards a single lens 3D

imaging system. The breakthrough in our

approach was that we could control image

motion according to local conditions even when

the setup was stationary. This approach eventu-

ally led to what we termed Active Wavefront

Sampling.

After having solved the first problems, we got

deeper and deeper inside our matter. During

development, we did not follow a straight path,

but were exploring different directions. Of course,

many questions arose, e.g. how to deal with opti-

cal artifacts which contaminate images. We also

had to find out how they influenced the measure-

ment. Another challenge was the reconstruction

of faces with a lack of texture.

When did you decide to form Brontes Tech-

nologies?

From the very beginning we talked about starting

a company. However, the real motivation came

when in 2002, we received an internal MIT grant

from the Deshpande Center for technological

Innovations to shift the focus of our work towards

commercializing the results of our research. To

Masterstroke of an army of talented and committed peopleLaslo Faith, 3M ESPE, Seefeld, Germany

The development of the Lava™ Chairside Oral Scanner C.O.S. technology

The original MIT team in 1999: Federico Frigerio, Professor Douglas Hart, Sarah Sheng Tan and Dr. János Rohály (from left to right).

Prototype of the video rate single lens three-dimensional imaging system to measure faces in 3D at real time.

3D imaging by Active Wavefront Sampling: The single lens camera captures three-dimensional data which are dis-played at the monitor in high accuracy.

The development of the Lava

4

Ask the Expert

evaluate the commercial potential of the technol-

ogy and to develop a business plan, we teamed

up with Eric Paley and Micah Rosenbloom from

Harvard Business School. The company Brontes

Technologies was officially founded in June

2003, after we became runner-ups at the MIT

$50K and Harvard Business School business

plan competition. Brontes finally took off in

2004, when three prominent venture capital

firms from the Boston area decided to invest in

our business. This step was most decisive for

Brontes.

What are the main building blocks of the

novel technology?

To summarize, one can say that technology devel-

opment was built on four blocks: the core technol-

ogy based on Active Wavefront Sampling, the

novel layout of the optical system that allows high

resolution and accuracy 3D imaging with multiple

sensors, the development of different algorithms

for high speed and accuracy, and real-time

processing of the data as well as manipulation

and visualization needed for guidance during

scanning and evaluation of the generated 3D

model. Technological inventions that continued in

these fields even after leaving MIT made intraoral

3D imaging at video rate possible, and are incor-

porated in “3D-in-Motion”.

Why did you decide to use the 3D-in-Motion

technology for dental purposes?

In the context of commercialization, we were

looking for a promising application for the tech-

nology. We had a long list of potential fields

where video rate, single lens 3D imaging could

be used. We initially thought about using it in the

industrial space, but the dental field seemed to

be more promising. We were fascinated by the

rapid pace of change that is currently taking

place in dentistry. The ongoing quest for replac-

ing highly customized manual work by auto-

mated manufacturing fitted into our visions. The

dental field also seemed to be able to utilize

some of the unique advantages of our technol-

ogy. You can imagine that it is particularly diffi-

cult for a scanner to be used intraorally – we

had to develop a reasonably sized hand-held

device with only limited space available for the

optical system to maneuver in the mouth during

scanning. I knew that the technology was capa-

ble for achieving this and deliver high accuracy

and resolution measurement. However, at the

time of starting the company we only had a very

crude prototype we could not even lift from the

optical table. It took us over one year to build our

first prototype, and convince our investors that

3D imaging in the mouth at video rate was pos-

sible. Once we had identified the dental sector

as our field of interest, we

received a lot of positive

feedback, e.g. from the

Dean of the Harvard Dental

School who said that our

technology had the potential

to revolutionize dentistry.

The whole development process was a strong

team effort and many people were involved. Once

we had incorporated Brontes, we had the chance

to work with many talented engineers and a whole

team of committed people that made our success

possible.

What is your opinion about the acquisition of

Brontes Technologies by 3M?

I am happy to be part of 3M. Of course, there are

positive aspects in being part of 3M ESPE as a

leading player in the dental field. Additionally, we

are automatically also part of a larger picture: 3M

is an innovative company with a broad interest

and other divisions are highly interested in our

technology as well. Thus, there are many options

in a large organization like 3M – in due time, our

technology might be applied in other sectors as

well.

A proof of concept prototype at MIT to verify three-dimensional reconstruction of teeth structures by wavefront sampling.

Teeth in focus.

Espertise™

magazine

5

No. 15 | MAR 2009

I opened my dental practice in Strassdorf, Ger-

many, in 1989. My current fields of expertise

include periodontology, implantology, prophylaxis

and esthetic dentistry. Since 1999, I offer my

patients Lava Zirconia restorations produced by a

milling center in Schwäbisch Gmünd. During the

last three years, I have worked as a lecturer for

3M ESPE. I am proud to be the first dentist in

Europe to receive a Lava Chairside Oral Scanner

C.O.S. for testing and evaluation. The goal of this

test is to assess the handling and practicability of

the Lava C.O.S. as well as its capability of being

integrated into the practice workflow. The device

was installed in my practice by 3M ESPE in Octo-

ber 2008. In a training session, its use was

explained and practiced before I integrated the

Lava C.O.S. into everyday practice in November

2008.

The Lava C.O.S consists of a wand and a worksta-

tion with touch screen. The data for the digital

impression are captured in the patient’s mouth

with the wand and simultaneously displayed at the

monitor. The technology of data capturing is

termed 3D-in-Motion. Different from traditional

point and click technologies making single pic-

tures, 3D-in-Motion captures data in a video

sequence and models them in real time. The Lava

C.O.S. captures approximately 20 3D data sets

per second. Single teeth as well as complete

arches are scanned and bite registrations are

taken with the highly complex optical system. The

scan in progress is instantly displayed on the

touch screen and can be viewed from all sides.

When all required data are captured, they are

transmitted to 3M ESPE for virtual ditching, and

from there, they are simultaneously sent to the

facility where a stereolithographic (SLA) model is

created and to the authorized laboratory for the

production of the restoration.

Most patients were pleasantly surprised because

the traditional impression taking procedure is

uncomfortable. What fascinated me right from

the start is the real-time visibility of the scanning

process. The device gives me immediate feed-

back on the impression in progress and I can see

if all essential data have been captured – instant

repair is possible while the patient is still in the

chair. This gives confidence and safety – inaccu-

rate impressions or even the necessity of taking a

second impression are a thing of the past. Fur-

thermore, the bite registration enables me to

check directly if the distance is sufficient for the

planned restoration. The whole process leads to

high precision and predictable results.

As a matter of course, the integration of the Lava

C.O.S. has an impact

on the practice work-

flow. Naturally, its

utilization is

a bit

more time-

consuming in

the beginning –

the dentist has to get

used to the handling of the

wand and practicing is required

for faster and more experienced

scanning. However, the employ-

ment of the Lava C.O.S. does not

only lead to predictable results, it

is the dentist’s entry point to the

digital workflow and thus, it paves

our way into a bright dig-

ital future.

Revolutionary technology in practical useJürgen Tobias, Schwäbisch Gmünd, Germany

Testing the Lava™ Chairside Oral Scanner C.O.S.

Dr. Jürgen Tobias

Capturing data with the wand.

Lava™ Chairside Oral Scanner C.O.S. workstation.

Testing the Lava Chairside Oral Scanner C.O.S.

6

Clinical Excellence

Pentamix™ Automatic Mixing Unit

Automatic mixing – causing a revolution in impressioningCarina Koppers, 3M ESPE, Seefeld, Germany

On the occasion of the 15th anniversary of the

Pentamix Automatic Mixing Unit, 3M ESPE has

been looking for the oldest Pentamix that is still in

working order. They have found it: the joint prac-

tice Dr. Edgar Spörlein and Dr. Almut Frohnweiler

in Geisenheim, Germany, employs a 14-year-old

Pentamix and has won a new Pentamix 3 for par-

ticipating in the competition run by 3M ESPE in

Germany.

Before the launch of the first Pentamix Automatic

Mixing Unit in 1993, impression materials had

been predominantly mixed by hand. Similar to the

introduction of a washing machine which solved

“the American housekeeper’s hardest problem” –

doing laundry – the development of an automatic

mixer for impression materials was a great relief

for dentists and dental assistants. The procedure

of automatic mixing radically changed the world of

impression and since work was facilitated, the

automatic impression taking procedure was soon

widely accepted and quickly became the standard

of care. Like washing machines, automatic mixing

units have been subject to constant improvements

since their launch – speed, convenience, and

accuracy were enhanced and the material choice

was broadened. Thus nowadays even putties such

as Express™ 2 Penta™ Putty and Penta Putty Soft

can be easily mixed with a Pentamix.

In the joint practice Dr. Spörlein and Dr. Frohn-

weiler, two Pentamix 2 and one Pentamix 3

devices are in use in addition to their first mixer

which is currently kept in reserve. Thanks to its

strong design and a sophisticated technology, the

first device is still in perfect condition.

The decision to purchase the first Pentamix unit

immediately after its launch in Germany in 1994

was a logical step for Dr. Spörlein – he had been

using an alginate mixer before and was convinced

of the high and consistent quality of automatic

mixing. Unlike manual mixing, a laborious process

and challenging task, the automatic procedure

ensures a homogeneous, reproducible quality at

the touch of a button.

Due to this reliable mixing quality, Dr. Spörlein

obtained highly precise impressions and conse-

quently final restorations with an accurate fit:

“Looking back, it becomes clear that the first

device has set the benchmark for automatic mix-

ing and still serves its purpose. I think that auto-

matic mixing is almost mandatory for precise

impression taking. I can rely on the quality and

save time, effort and money by using Pentamix. A

second impression or corrections in the final res-

toration are hardly ever necessary since we are

employing Pentamix in our practice and the qual-

ity of the prosthetic work has improved. This cer-

tainly leads to higher patient satisfaction. The

device has paid for itself!”

The new Pentamix 3 Automatic Mixing Unit the

practice has won last summer is regarded by Dr.

Spörlein as a successful continuation of the Pen-

tamix family tradition. For him it is certain that

Pentamix and the washing machine have revolu-

tionized work in their particular field.

The practice team is happy to receive a Pentamix™ 3 Automatic Mixing Unit.

19th century washing machine. The “antique” first version of the Pentamix™ Automatic Mixing Unit.

Source: © disorderly – istockphoto.com

Espertise™

magazine

7

Clinical Excellence

No. 15 | MAR 2009

IMTEC®, a 3M Company

Acquisition of IMTEC offers new opportunitiesJürgen Sendelbach, 3M ESPE, Seefeld, Germany

In July 2008, 3M completed its acquisition of

IMTEC Corporation, a manufacturer of diverse

solutions for dentistry such as dental implants and

computed tomography technology for maxillofa-

cial radiology. IMTEC has its headquarters in Ard-

more, Oklahoma, USA. The company with its

European branch in Oberursel near Frankfurt,

Germany, has set itself the target of offering high-

quality dental materials at an affordable price and

new technology for oral healthcare through

research and development.

Dental implants

In 1990, IMTEC Corporation was founded with the

aim of developing, producing and marketing special

products for the dental industry on a worldwide

scale. In the beginning, the company’s focus lay on

the development of implants with the goal of chang-

ing the dental implant industry with affordable high-

quality solutions. In the late 1990s, IMTEC launched

its Sendax® MDI Implant line. Due to their small

diameter, Sendax MDI implants can be inserted

into the jaw where the amount of available bone is

low. The introduction of the Sendax MDI implant

line meant a revolution in implantology and IMTEC

soon became market leader in this field. The

Sendax MDI implants

were the first mini-

implants to receive FDA

approval for long-term

indication. Today, these

mini-implants are a

well-accepted treatment

option used for diverse

indications – they are well

suited to fix dentures and

to stabilize interim pros-

theses in the context of

an implantological treat-

ment, among others. Very

recently a new MDI Hybrid

Implant with a diameter of 2.9 mm – larger than

mini dental implants, but smaller than conventional

ones – was successfully launched. This one-piece

implant offers an innovative solution for replacing

missing teeth in cases with restricted space in a

minimally invasive, flapless procedure. The cortical

plate is perforated with the pilot drill and the implant

is placed through the pilot hole into the virgin bone

– the placement protocol is similar to that of the

mini dental implants.

Apart from its involvement

in the field of small diam-

eter implants, IMTEC

offers an implant portfolio

comprising conventional

implants and orthodontic

implants for temporary

anchorage. Furthermore,

the company offers a

complete guided tissue and bone regeneration

system. For all these systems, an appropriate set

of instruments is available.

Cone Beam Computed Tomo-graphy

Another highly important market segment of IMTEC

is the development of the Cone Beam Computed

Tomography (CBCT) technology. In March 2007,

IMTEC decided to merge with HYTEC Inc. located

in Los Alamos, New Mexico, USA, a company that

developed innovative imaging technologies and

corresponding software solutions for diverse indus-

tries. It is the sophisticated knowledge and experi-

ence of this research team that allowed IMTEC to

offer cutting-edge technology in 3D Cone Beam

Computed Tomography. Drawing on its industrial

imaging experience, IMTEC launched the ILUMA®

CBCT Scanner which set new standards in image

quality and resolution.

CBCT Scanners are becoming a more and more

indispensible diagnostic tool in the dental com-

MDI Implants are ideally suited for stabilization of dentures.

The 2.9 mm MDI Hybrid Implant for minimal-invasive implantology.

IMTEC’s ENDURE™ Inter-nal hex implant system

The new ILUMA CBCT.

IMTEC , a 3M Company

8

Backstage Report

munity since they are offered in a more compact

design and have a far lower radiation dose com-

pared to the traditional spiral CT scanners. While

several rotations are necessary for conventional

CTs, the CBCT is able to produce the full image in

a single rotation – a much quicker procedure. The

precise 360-degree images of the patient’s head

captured with a CBCT allow an exact and clinically

meaningful visualization of the patient’s anatomy.

The images are used for diagnosis, functional

analysis and became especially important in

implantological treatment planning. In addition to

3D volumetric images, 2D projections such as

panoramic and cephalometric images can be re-

produced from the original data set.

The ILUMA® CBCT Scanners have an open, sta-

ble and flexible design and utilize the same,

proven core software as in IMTEC’s successful

FlashCT industrial scanners. The newest ILUMA

CBCT Scanner offers improved software func-

tions and most importantly a faster reconstruc-

tion. It thus enables the dentist to work even

more productively.

Digital Dentistry

The CBCT technology is the basis for further dig-

ital technology solutions which have been devel-

oped by IMTEC to simplify dentistry. With Ortho-

Proof, virtual models are created directly from

impressions using FlashCT CBCT technology.

These models are used for dental and orthodontic

applications and for digital archival storage.

According to IMTEC, the scanning strategy of the

IMTEC’s CBCT is basis for the production of the

renowned Invisalign® aligners that are used as an

alternative to braces.

Furthermore, IMTEC is developing the DigiGuide™

MDI Software for implant planning and DigiGuide

Custom Surgical Guides for a correct placement

of implants. Both systems are based on data

captured with digital imaging systems such as

ILUMA CBCT: the software allows for three-

dimensional evaluation of patient data such as

CT scans, virtual placement of implants and

transfer of the imaging data for the fabrication of

a custom surgical guide at IMTEC. The DigiGuide

Custom Surgical Guides are tissue-born and

ensure a safe and simple implantation proce-

dure.

Agents of change

With the acquisition of IMTEC, 3M ESPE gains a

strong partner to advance the development of dig-

ital dentistry solutions. In the context of a rapidly

evolving dental industry, 3M ESPE seems well

prepared to play a leading role in transforming

dentistry with digital technology and to make work

easier and more productive for the dental custom-

ers.

The new ILUMA CBCT.

The powerful viewer software included in the ILUMA CBCT system.

The convenient software tool allows exact mapping of the nerve.

Espertise™

magazine

9

No. 15 | MAR 2009

Not only in dentistry, where the constant develop-

ment of new technologies and improved materials

leads to groundbreaking changes, are things cur-

rently in a state of flux. Changes are natural e.g. in

different fields of industry or in nature and they

are also reflected in the cityscape. In urban

regions like the IDS location Cologne, complete

areas are subject to restructuring. However, exist-

ing structures are retained in many places

because they are a valuable part of the city. Just

like in dentistry where companies often leverage

expertise in traditional fields for the development

of new technologies, nowadays, historical urban

structures are often restored and maintained.

New elements are cautiously incorporated to pre-

serve a certain atmosphere and to learn from the

past. In Cologne, many traces of history are found

when taking a walk through the city.

The Rheinauhafen

A current example of a merger between new and

historical is the Rheinauhafen harbour. It is located

near the city center, between the Rheingarten in

front of the old city and the popular southern area

(Südstadt) of Cologne. The harbour was built in

the late 19th century and opened in 1898 as a

vibrant location of transport and trade. It was built

on a natural island on the Rhine, a particularly

suitable site for a harbour. Currently, the area is

being redeveloped. However, not all traditional

structures are being abandoned: Many of the

former harbour buildings like the municipal har-

bour office and several warehouse buildings are

classified as historical monuments and have been

restored in compliance with strict regulations. The

new architecture is being integrated into this

ensemble and together, the elements form a har-

monic overall picture and although its appearance

is renewed, typical characteristics of the former

harbour are retained. In the new district a symbio-

sis of offices, services, gastronomy and exclusive

housing as well as culture will be formed.

Historical buildings shine in new splendour

For people interested in historical monuments, the

Rheinauhafen has plenty to offer: The Bayenturm,

a defence tower that was built in the Middle Ages

and was never used for harbour purposes, the

main service building at the tip of the peninsula

(which is now the Chocolate Museum), restored

cranes, the Zollhafen (customs harbour), the

municipal harbour office and several warehouses

like the Siebengebirge dating to the late 19th or

early 20th century.

The municipal harbour office is an example of

integrating new elements into old basic struc-

tures. It was not only restored, but also comple-

mented by new design elements. Two new struc-

tures were added to the neo-Romanesque

administrative building as a continuation to its

Changes in the cityscape of Cologne

Integration of traditional and new in urban structures – the RheinauhafenCarina Koppers, 3M ESPE, Seefeld, Germany

View of the Rheinauhafen harbour.

The back of the municipal harbour office – combining old and new.

Source: moderne stadt GmbH

Changes in the cityscape of Cologne

10

Backstage Report

rearward wings. Those differ significantly in their

design from the historical architecture. Between

historical and new building, a glass-roofed atrium

came into existence which connects the two

oppositional parts and contains a staircase and

lifts.

The German Sport and Olympic Museum is

located in the former warehouse 10, which was

restored as nearly as possible to its original state

between March 1998 and summer of 1999.

Traces left by time were consciously revealed

and some new elements were added as a con-

trast to highlight contemporary signs of architec-

ture.

One warehouse building, the so-called Siebenge-

birge (seven mountains, due to its seven-gabled

roof) was built in 1909 as one of the first buildings

in Germany with a reinforced concrete skeleton

structure. Today, it is carefully restored and

equipped for exclusive residential and business

purposes.

Highlighting new architecture

In contrast to these old buildings, several new forms

are emerging in the district, such as the Kontor 19

with its homogeneous, plain structure, the Wohn-

werft (housing dockyard) buildings with their nested

structure of cubical forms and their complete open-

ness to the Rhine, the office building the Bench and

the Kranhaus (crane house) buildings.

The three Kranhaus buildings are a particularly

interesting example of modern architecture which

is integrated to complement the harbour charac-

teristics. They are currently being built on the so-

called peninsula Yachthafen (marina). The Kran-

häuser take the shape of cranes, a form which is

typical for harbours. Their highly modern archi-

tecture forms an intentional, strong contrast to the

adjacent historical harbour buildings and creates

interesting space conditions due to the perpen-

dicular form.

Harmonic picture of old and new

The restructuring project of the Rheinauhafen has

a multisided appearance. The area is still subject

to transformations, but it already attracts diverse

companies, from small start-ups to giants like

Microsoft, private persons interested in exclusive

housing as well as curious visitors. Whether dur-

ing the IDS 2009 or at a different date – the

Rheinauhafen is definitely worth a visit!

The restored warehouse Siebengebirge The Wohnwerft building. One of the three Kranhaus buildings.

Restored crane at the harbour promenade.

Espertise™

magazine

11

Welcome to the unique world of 3M ESPE3M ESPE is located at hall 4.2, booth number G 90, between south and east entrance of the hall.

IDS Cologne 2009

Center stage – the Lava™ Chairside Oral Scanner C.O.S. is pre-

sented. Live demonstrations will give you insights into new facets

of dentistry. A demonstration of the Lava C.O.S. by an experi-

enced trainer, for example, will make you familiar with the

advanced technology and show you how to achieve optimal scan-

ning results with the device.

Monitors – displaying the events on the stage to make the show

visible for everyone.

Side entrances – leading you directly to the counters: for inform-

ative conversations with our skilled personnel and with scientists

over a cup of coffee from the coffee bar.

IMTEC, a 3M Company and 3M Unitek – the two companies

which are part of 3M present themselves and their innovative

products in the fields of orthodontics, Cone Beam Computed

Tomography technology and implantology at booth G 89.

Conference rooms and lounges – the whole area of booth G 91 is

devoted to an exchange of knowledge and ideas with and between

dental professionals and scientists. Under the umbrella of Esper-

tise, the concept of continuing education and knowledge transfer

of 3M ESPE, exclusive product presentations and trainings are

offered.

Nr. 15 | MAR 2009

IDS Cologne 2009

12

News and Innovations

“Walk of Uniqueness” – at different stations, the highlights are

presented. At every station of the walk of uniqueness, service

personnel or scientists are at your disposal any time. They will

give insights into product development and technology. Products

are shown and can be tested. Experience their uniqueness!

On the right side you will find four stations demonstrating the

superior clinical benefits of selected products for the direct and

indirect restorative procedure. These include solutions to prevent

periimplantitis and filling materials as well as materials for tem-

porization, cementation and impression taking. Come and feel

their uniqueness!

On the left side we will introduce you to the new Lava™ Precision

Solutions offered by 3M ESPE, including numerous innovations:

e.g. the Lava Chairside Oral Scanner C.O.S., the new Lava

Design Software 5.0, the mill Lava CNC 500, and additional Lava

Frames. These extensions of the Lava System allow an even

broader range of indications.

Service point – the well-trained service personnel will be happy

to answer your questions.

Information counter – at the entry point to the walk of unique-

ness, an information counter will provide you with all facts

needed: monitors will show the live demonstrations and a screen

gives an overview of the diverse events.

With the broad spectrum of products in the field of oral care, 3M ESPE offers some-thing for every one! We look forward to welcoming you at our booth!

Espertise™

magazine

13

No. 15 | MAR 2009

Temporary restorations are an indispensable part

of the entire crown and bridge restorative proce-

dure. The requirements a temporary restoration

must fulfil increased considerably over time. While

functional aspects predominated in the past,

esthetic demands are growing today and higher

strength and fracture toughness is needed to

allow a material’s indication also for long-term

temporization.

The long-standing expertise of 3M ESPE contrib-

uted to the development of the new Protemp 4.

This composite material sets new standards with

the following key features:

■ Compared to proven Protemp 3 Garant, fur-

ther improved strength balanced with elastic-

ity leads to significantly higher fracture tough-

ness than competitive products.

■ First bis-acrylic composite with a new gen-

eration of technologically advanced fillers

■ Highly esthetic through natural gloss and

fluorescence

■ Easy handling with no polishing necessary

First step: design of a new monomer

The material characteristics of a low-filled com-

posite are mainly determined by the chemical

structure and composition of its monomers.

Product development at 3M ESPE is not limited to

monomers which are available on the market. In

close cooperation with preparatory research, new

monomers were designed and developed and the

properties of this newly developed matrix were

tested directly in the internal laboratories.

To achieve this, a relevant set of physical meas-

urements was determined to gain insight into the

strength, brittleness or elasticity of the material

(Fig. 1)

Getting in vitro as close as possible to the clinical situation

Mechanical properties measured initially are only

one side of the coin. The profile of material prop-

erties changes in the course of time, through fur-

ther curing as well as through thermal, hydrolyti-

cal and mechanical stress or ageing. To simulate

this process under conditions which are as close

as possible to the clinical situation, a mastication

simulator was used for testing (Fig. 2). In this

study, conducted internally and externally, stand-

ardized 3-unit-bridges luted with temporary

cement on metal cores were tested with 480.000

mastication cycles und 3.000 thermo cycles

(water bath: 5°C/50°C).

The decline in fracture resistance was examined

compared to a control group that had not been

exposed to any stress, and for those samples that

did not survive, the failure rate and the maximum

number of cycles before breaking was measured.

With these conditions a clinical wear time of two

years was simulated in vitro. The results obtained

from studies like these correlate surprisingly well

with the outcomes of clinical studies on the frac-

ture rate in vivo.

Inventing an outstanding reduction of working steps

An important aspect in the development of new

materials is above all the ease of use and the

reduction of required working steps. As the mate-

rial application already is optimized with an auto-

matic mixing system, the goal was to reduce the

work after finishing with rotating instruments in

order to obtain a glossy surface without any

polishing.

Inventors at work – creating a unique product profileUwe Hoheisel, 3M ESPE, Seefeld, Germany

Protemp™ 4 Temporization Material

Fig. 1: A Zwick universal testing machine is used to measure physical properties of new materials like Protemp™ 4 Temporization Material.

Fig. 2: The mastication simulator imitates the ageing process of the temporary material with thermocycling and mechanical loading.

Protemp 4 Temporization Material

14

Backstage Report

Shared knowledge at 3M sup-ports the creation of the filler

The surface roughness of cured composites is

determined by the maximum particle size of its

filler. Since particle sizes below 1 µm are not

obtainable with current fillers even with advanced

and laborious grinding procedures, an entirely

new filler technology was developed.

In cooperation with the 3M Techcenter in St. Paul,

USA, the team from Seefeld, Germany (Fig. 3),

developed the basics for the chemical surface

treatment of nano-scaled particles and their inte-

gration into a monomer matrix. This material class

is designated as nanomers. The procedure was

refined at 3M ESPE and transformed into the pro-

duction scale.

Thanks to the new filler technology, smooth sur-

faces are obtained after curing (Fig. 4) and a break-

through in rheological and physical properties is

offered. Under these conditions it is possible to fill

the monomer matrix without any perceivable

increase in viscosity – the nanomers stay flowable

up to a considerable degree of filling. By selection

of the appropriate particle size it is also possible to

produce absolutely transparent formulations.

The strengths and beauty of the new filler technology

The use of nanomers in low-filled composites

leads to values for compression

strength that equal those of maxi-

mum filled restorative composites.

The nano-scaled filler produces a

strengthening and shrink-reducing

effect in the matrix, while all the

properties related to toughness and

elasticity of the matrix remain

unaltered. These material proper-

ties have been confirmed in external

studies.

Besides improved mechanical properties, Protemp™ 4

Temporization Material offers a highly esthetic sur-

face gloss, a natural tooth-like fluorescence and an

improved color stability as it resists staining by food

and beverages like for example coffee. In addition

Protemp 4 is more user friendly as the dental profes-

sional can easily remove the system-inherent thin

inhibition layer and obtain a

smooth surface with a pol-

ished appearance.

For the same reason no glaze

is needed to reduce plaque

accumulation as well as to

obtain the above mentioned

surface properties. (Fig. 5)

Dentists like to work with Protemp 4™ Temporization Material

In one of the largest clinical field studies con-

ducted to date, 390 participating dentists in dif-

ferent countries rated Protemp 4 with an overall

satisfaction level of 93 percent regarding all eval-

uated aspects. These excellent results of this

clinical practice study clearly indicate that the

product might well change the way dentists and

patients look at temporaries.

Fig. 3: The inventors, our R & D Team Temporization at 3M ESPE Seefeld, Germany, answered customers’ demands with a unique temporary solution – Protemp™ 4 Temporization Material.

Fig. 4: AFM (Atomic Force Microscope) imaging shows that Protemp™ 4 Tem-porization Material has a significantly smoother surface quality than com-petitive products without polish.

Fig. 5: Partially glazed Protemp™ 4 bridge: There is no visi-ble difference between glazed and unglazed surfaces.

no glaze; just wiping with alcohol

with Luxatemp- Glaze & Bond

Structur Premium Luxatemp-Fluorescence

Protemp 4

Espertise™

magazine

15

No. 15 | MAR 2009

Technological improvements and constant innova-

tions have revolutionized the dental sector – from

dental practices over dental laboratories to dental

education. Many things are currently in flux, and the

dental industry is continuously developing new

options for patient care, material processing and

practice management. The resulting new treatment

options and enhanced ways of business manage-

ment force professionals to decide whether or not

they will alter their own work processes – an impor-

tant decision that depends on various factors. Many

dentists and technicians have doubts if radical

change is really necessary since the integration of

innovative technologies into their traditional work-

flows seems to be risky and challenging because

the initial capital investment is high. However, it

seems that today, a seamless integration of depend-

able digital technologies into dental work processes

is more than ever necessary for the dental profes-

sion to ensure high quality, efficiency and optimal

patient services.

To find out more about the integration of digital

technology into a traditional dental practice, we

have visited Marheine Zahnmedizin, a two-genera-

tion joint practice of Dr. Christian Marheine and Dr.

Dr. Andreas Marheine in Stuttgart, Germany. The

dental office of father and son is an interesting

example of successful adoption of innovative fea-

tures in a dental practice.

Marheine Zahnmedizin

Dr. Christian Marheine opened his own dental

office in 1970. In 2005, he decided to form a joint

practice with his son Dr. Dr. Andreas Marheine

who had been working with his father as an

assistant dentist for two years. Before Dr. Dr.

Andreas Marheine began to work in the practice,

it was managed in the traditional way and work

processes were predominantly analogous. Patient

data were stored on record cards, appointments

were recorded on paper and restorations were

fabricated in a dental laboratory.

An agent of change

Dr. Dr. Andreas Marheine was the agent of

change in the practice. When he began to work

with his father, he initiated equipments acquisi-

tion and the incorporation of digital technologies

which fundamentally altered workflows. Today,

Marheine Zahnmedizin makes use of diverse

technologies which facilitate work. Soft- and

hardware for bookkeeping and electronic docu-

mentation have been introduced. Due to this, the

processes are facilitated, space is saved and

more precise planning is possible because all rel-

evant data are stored in the computer. Since

2005, all dental chairs are equipped with intraoral

as well as extraoral cameras. A digital radiogra-

phy device was integrated for more time-efficient

procedures. Digital technology is also used for

caries diagnosis and a chairside CAD/CAM sys-

tem is available. This system has enabled father

and son to integrate restorations directly, elimi-

nating the need for a second visit of the patient.

This allows the practice Marheine to work more

productively and with higher precision, although

most of the treatment in the patient’s mouth has

remained the same. High precision is also the

goal of integrating the latest device: Since Octo-

ber 2008, Marheine Zahn-

medizin is testing a Lava™

Chairside Oral Scanner C.O.S.

and patients are fascinated by

the advanced technology. Last

but not least, father and son

Marheine also cooperate with

milling centers to make use of

CAD/CAM produced restora-

tions.

Integrating new technologies

Dr. Dr. Andreas Marheine masterminded the

introduction and integration of these technologies

into the practice workflow and his father is happy

to benefit from the innovations as well. Both,

father and son, work with new devices and have

accepted the changes. The integration into the

practice was managed in a stepwise procedure to

Practice workflows of past and presentLaslo Faith, 3M ESPE, Seefeld, Germany

Integrating digital technology into the dental practice

Dr. Dr. Andreas Marheine and Dr. Christian Marheine with the Lava™ Chairside Oral Scanner C.O.S.

Digital technologies support documentation and bookkeep-ing.

Integrating digital technology into the dental practice

16

Backstage Report

avoid a radical restructuring of the practice work-

flow. According to both dentists, the technologies

were carefully selected and trainings were

attended by the team to achieve a quality enhance-

ment leading to improved patient satisfaction and

increased productivity.

“It was necessary to attend seminars and trainings

and to instruct the whole team on how to use the

technology in the early stages. Particularly the use

of the practice software turned out to be time-

consuming in the beginning. However, the whole

team got familiar with the new elements very soon

and the initial investment turned to account. We

have reached a more effective level of productivity

and change ultimately resulted in increased patient

satisfaction,” said Dr. Dr. Andreas Marheine.

According to his father, particularly the Lava™

Chairside Oral Scanner C.O.S. is favoured by his

patients: “It is an interesting

experience for patients to see

how the model evolves at the

screen and they prefer the

impression taking procedure over

traditional impressions. An

im portant advantage for me is

that I see what I am doing and there are no unpleas-

ant surprises when receiving the final restoration.”

Although many technologies are successfully uti-

lized, father and son are still using some analo-

gous processes: the coexistence of traditional and

new in the office is important for both of them.

What they value most is the ability to choose the

way which fits best into their concept.

Positive impact on the busi-ness

It is clear for Dr. Christian Marheine today that

without the help of his son, he would have contin-

ued working in the familiar, traditional way. The

technological knowledge of his son and enhanced

investment options have lead to a radical, but

smooth change in the practice. Today both, father

and son, are dependent on the technology: “Some

processes in our dental office would not be pos-

sible without digital technology. Quality manage-

ment, for example, is only possible if the relevant

processes are digitized. Due to an electronic stor-

age of information, quality management is simple

and implicates positive change. We both are con-

vinced that the decision to integrate this technol-

ogy was right, I can only say that we would defi-

nitely do it again!” said Dr. Christian Marheine at

the end of our visit.

Digital technologies in a treatment room.

Binary code.

Digital radiography enables three-dimensional imaging.

Source: © Phototom – Fotolia.com

Espertise™

magazine

17

No. 15 | MAR 2009

Interview with Professor Dr. Albert J. Feilzer,

Professor of Dental Materials Science, Chair-

man of the Department of Oral Function and

Restorative Dentistry, and member of the

management team at the Academic Center

for Dentistry Amsterdam (ACTA).

Professor Dr. Feilzer, throughout your career,

you have been employed at the ACTA, an aca-

demic centre founded through cooperation

between the dental faculties of VU Amster-

dam and the University of Amsterdam. What

is the educational goal of the centre?

The main goal of ACTA is to offer high-quality

academic education for dentists. As one of the

largest dental education and training programmes

worldwide, ACTA strives for the best use of talents

by providing an advanced study and work environ-

ment. In the Netherlands the general practitioner

leaves university with an academic master-certif-

icate which gives permission to practice in all

fields of dentistry. Moreover, we offer two kinds of

postgraduate education programmes – one pro-

gramme has the goal of professional differentia-

tion, the master courses will be organized in the

near future in a postgraduate school together with

PhD programmes. The other is a postgraduate

course for continuing education which is organ-

ized by the ACTA Education BV (a corporation

under the ACTA Holding).

How do students learn at ACTA?

Since practical experience is highly important, the

policy of ACTA is to minimize the amount of theo-

retical one-way lectures and to stimulate self-

study to develop an academic attitude. We prefer

studying in small working groups, although this is

sometimes difficult in a large dental school like

ACTA. Currently, the PICO-approach is often

adopted to combine theory and practice at the

centre. With PICO, students learn to pose well-

built clinical questions which enable them to find

evidence through literature research. The out-

comes of their PICO-questions have to be pre-

sented to their colleagues and our staff for evalu-

ation. Several practical periods are also part of

our education programme.

What impact did changes in dentistry have

on the structures of the ACTA and its teach-

ing methods?

Changes in dentistry should always influence the

teaching methods and should be reflected in the

content of the curriculum. Many years ago we rec-

ognized already that technology had started to

play a decisive role in dentistry and that every

dentist should have a basic competence in this

field. Therefore, we have integrated these relevant

topics into the ACTA curriculum. Digital technol-

ogy will continue to have a significant impact on

teaching dentists. Technological improvements

lead to innovations in educational equipment as

well. Various new technologies which will enhance

dental education will be integrated in the new

building which is currently being constructed for

ACTA.

However, there are more changes than those

induced by digital technology. Patients are becom-

ing increasingly demanding and there is a shift

from repairing teeth to the maintenance of oral

health. Due to changes in the patient’s expecta-

tions, perfect communication with them is of main

importance, a topic which is also taught at ACTA.

Education at the Academic Center for Dentistry AmsterdamGerhard Kultermann, 3M ESPE, Seefeld, Germany

Changes in dental education

Patient,Population,Problem

What are the characteristics of the patient or population?What is the condition or disease you are interested in?

Intervention or expo-sure

What do you want to do with this patient (e.g. treat, diagnose, observe)?

Comparison What is the alternative to compare with the intervention (e.g. placebo, different drug, surgery)?

Outcome What are the relevant outcomes (e.g. morbidity, death, compli-cations)?

Prof. Dr. Albert Feilzer

The PICO approach to questions.

Changes in dental education

18

Ask the Expert

Professor Dr. Feilzer, you said that the ACTA

will move into a new building. What was the

reason to start this project?

The cooperation of the two universities which lead

to the foundation of ACTA started about 25 years

ago. The present ACTA building is that of the

former dental faculty of the University of Amster-

dam. Over the years, student numbers increased

significantly and a few satellite clinics had to be

founded to perform the clinical treatments. More-

over, we still have both university medical hospi-

tals. In the new building, we hope to bring all sci-

entific departments, hospitals and laboratories of

the centre together – only one satellite clinic will

remain. In this way, a close cooperation between

the different departments will be enhanced. Since

the new ACTA building will be located next to VU

University Medical Center, an exchange with the

medical profession will be possible as well. We

hope that this will change our education and

research to a more multi-disciplinary approach.

Moreover, improvements in teaching will be pos-

sible in the new building.

What kind of technologies will be used in the

new building to enhance teaching and learn-

ing?

For the preclinical training we are developing a

digital simulator (‘Simodont’) to give the student a

better feedback on his actions when practicing

dental procedures. This is a valuable improvement

because the simulator will enable students to

develop tactile skills and eye-hand coordination

(which are very important for a dentist) at an early

stage before treating real patients. The treatment

units in the new building will be state-of-the art

and will enable students to learn in an effective

way. Moreover, we are going to implement the

3M ESPE Lava™ Chairside Oral Scanner C.O.S.

technology in our centre. The technologies used in

our centre are designed to prepare our students

best possible for clinical practice. By the time they

start working, many of these technologies will be

integrated into everyday dental practice and it is

highly advantageous if they are familiar with these

tools.

We are sure that transformations in the dental

market due to the integration of digital technolo-

gies will have an enormous effect on our educa-

tion programme in the next years. For instance,

developments in the dental laboratory require a

change in teaching. In the future, students will be

designing crowns and caps for all-ceramic resto-

rations by using a computer instead of learning to

make wax-up designs for casted crowns by hand.

CAD/CAM-related issues will become increas-

ingly important. Moreover, the use of digital tech-

nologies will lead to a different assignment of

tasks in clinical practice. I expect that much of the

hand work which is currently done by the dentist

will be taken over in the near future by dental hygi-

enists or dental assistants. The dentist will focus

increasingly on topics such as diagnosis, treat-

ment planning as well as treatment direction.

These are all aspects which have to be though out

for future curricula.

Professor Dr. Feilzer, thank you for the inter-

view.

Student during a practical training session.

The new ACTA building.

State-of-the-art treatment units in the new building.

Espertise™

magazine

19

No. 15 | MAR 2009

The Espertise concept explained by using the example of Filtek™ Silorane Low Shrink Posterior RestorativeRoland Bosch, 3M ESPE, Seefeld, Germany

Espertise™ platform for knowledge transfer

To facilitate orientation in the flood of information that is available in the dental

branch, 3M ESPE has developed Espertise, a platform that provides the cus-

tomer with relevant know how. Espertise offers every kind of specialist sup-

port: the whole range of training courses, events, literature and individual

advice. Furthermore, worldwide networking of 3M ESPE ensures that the

interested dentist or dental technician is always up-to-date with regard to

latest dental developments and findings.

The Espertise Program is traditionally based on three pillars of knowledge trans-

fer: events, literature and dialogue. The events include forums, where renowned

speakers inform about new findings, regional practical seminars for interactive

learning, lunch & learn – product- and technology-related in-office trainings and

presentations by field staff, and symposia. These are international conferences

with 150 to 200 dental representatives designed for high-level scientific

exchange. An example is the Espertise Symposium on Filtek Silorane which was

organized directly after the launch of the product. It gave dentists the opportu-

nity to collect information first hand. Latest research on the material features of

Filtek Silorane was presented by numerous international experts.

Also with the second pillar, literature, 3M ESPE keeps the customer informed.

The company offers compendia including background information on prod-

ucts, clinical case studies and study brochures. For Filtek Silorane, informa-

tive brochures, several case studies published in the Espertise series “Expert

Education” and a Study Booklet are available.

The third pillar, dialogue, offers information and answers for all products via

field staff or the highly qualified staff of the service center hotline.

In addition, 3M ESPE has recently established a fourth pillar: Espertise studies.

In this category, 3M ESPE cooperates with universities which have a high inter-

est in particularly innovative products like Filtek Silorane. A customer assess-

ment study focusing on material properties and handling of Filtek Silorane was

conducted by 3M ESPE in cooperation with the University of Munich between

September and December of 2008. In the context of the study, several hundred

participants were provided with a material kit and evaluated the product in their

dental practice. Preliminary results confirm the unique handling properties of

Filtek Silorane. Currently, a similar study is being conducted in other European

countries as well. Study results can be requested at 3M ESPE.

Filtek Silorane stands for revolutionary changes in dentistry because it is the

first dental composite with a volumetric shrinkage of less than 1% (tested

using the “Bonded Disc Method”). This significant reduction in shrinkage is

achieved by ring-opening matrix chemistry which minimizes the risk of clinical

symptoms such as post-operative sensitivity or microleakage. The product

offers excellent material properties and handling simplicity. Due to the differ-

ent chemistry, a special adhesive was designed for Filtek Silorane – the

Silorane System Adhesive.

The multifaceted concept of Espertise is very well received as a platform for

knowledge transfer from a research driven company to dental professionals.Dentists have the opportunity to collect relevant information first hand at Espertise sympo-sia, seminars and forums.

Espertise enlightens dentists about 3M ESPE products and technologies.

Espertise platform for knowledge transfer

20

Backstage Report

Knowledge transfer to dentists and dental techniciansBettina Richter and Gerhard Kultermann, 3M ESPE, Seefeld, Germany

Espertise™ Global Symposium follow-up activities

In May 2008, 3M ESPE held an Espertise™ Global

Symposium in St. Paul, USA, to discuss the future

of dentistry. The international event focused on

the impact of digital technologies on clinical pro-

cesses and future workflows. Presentations were

held by renowned clinicians as well as 3M ESPE

experts and lively discussions explored the oppor-

tunities that exist with the new digital workflow.

It seems clear that events like the Global Sympo-

sium provide an important platform for knowledge

exchange and the development of new ideas.

However, many dentists and dental technicians

might wonder how this information is spread

throughout the dental world and how they benefit

from new findings. Apart from establishing a pub-

lic website (www.3mespe.com/symposium)

which offers all presentations of the global event,

3M ESPE has organized a number of follow-up

activities on a national scale to spread the knowl-

edge.

In Spain, Germany and Italy, for example, articles

and press releases on diverse topics of the sympo-

sium such as technology and learning, digital ver-

sus analogous impression taking, and zirconia dif-

ference have been published in the dental press. In

regional seminars and lectures, dental experts,

many of which have been attendants of the

Espertise Global Symposium in St. Paul, passed on

their knowledge about important developments

and new technologies to the participants.

In Spain, for example, a two-day Spanish Espertise

Symposium took place in Madrid in February

2009 focusing on esthetic dentistry and new

technologies. Here, international and national

experts reflected the highlights of the Global

Symposium and the topic of digital dentistry.

Cooperation with several Spanish universities

enables students to come into contact with latest

technological developments like the Lava™

Chairside Oral Scanner C.O.S. which are being

introduced in educational programmes.

In Germany, information was transferred from

speakers of the Global Symposium to dentists and

technicians via local lecturers of 3M ESPE. During

one event, Prof. Dr. Ralph G. Luthardt (University

of Ulm), a speaker of the Symposium, summa-

rized important contents of the meeting in St. Paul

and discussed the topics with the 3M ESPE lec-

turers. Afterwards, the attendees had the chance

to witness a live demo of the new Lava C.O.S. The

lecturers were brought up-to-date about the

future digital workflow.

During the AIOP International Congress held in

Bologna, Italy, in November 2008, about 400

people attended a 3M ESPE workshop. The great

number of participants reflected the huge interest

in the new digital technologies. During the work-

shop, the 3D-in-Motion technology of the Lava

C.O.S. was explained and a live demonstration of

digital impression taking as a part of the digital

workflow was given.

Thanks to these strategies of regional knowledge

transfer, a broader base of people benefit from

events like the Espertise Global Symposium.

The Spanish team in front of the 3M Innovation Center in St. Paul.

Dr. Gerhard Kultermann with Antonio Corradi (Project Leader Lava, Italy) at the AIOP International Congress in Bologna, Italy.

Hands-on session at the 3M ESPE Espertise™ Global Sym-posium in St. Paul: experiencing the Lava™ Chairside Oral Scanner C.O.S.

Espertise™

magazine

21

Scientific Activities

No. 15 | MAR 2009

According to the nebular hypothesis that was first

proposed by the philosopher Immanuel Kant in

1755, a swirling nebula of dust and gas was

formed about 4.5 billion years ago in a formerly

empty void of space. This nebula contracted and

became a central molten mass – our sun. With

increasing core pressure and temperature, the

molten mass transformed into a star and due to

thermonuclear hydrogen fusion, the sun began to

shine. Light from the sun was, beside carbon and

water, the decisive precondition for life to develop

on earth.

Artificial light

Fire was probably discovered by the homo erectus

about 400,000 BC by accident, when a bolt of

lightning struck a tree and it started to burn. Ever

since, mankind has made use of “artificial” light.

Portable lamps (torches) made of natural materi-

als such as hollow rocks or shells filled with ani-

mal or vegetable fat were invented around 70,000

BC to illuminate caves. Further improvements

resulted in the development of oil- and gas lamps

and ultimately led to electric lamps. The first elec-

tric lamp was a carbon arc lamp invented by Sir

Humphrey Davy, an English chemist, in 1801. A

light bulb was patented in 1875 by Henry Wood-

ward and Matthew Evans – this invention served

as the standard in lighting for many years until

high-power and energy-saving alternatives started

to displace it.

Lighting today

Nowadays, light is not only used to illuminate

rooms and streets: LEDs (Light Emitting Diodes),

neon light and lasers are available for a multiplicity

of applications. Light is a decorative element uti-

lized for example in vehicles and in architecture.

Furthermore, it is used in medicine, e.g. as a

treatment for seasonal affective disorder, and in

dentistry to cure dental materials. In many of

these fields, 3M has played a leading role in

developing lighting solutions, one of the core

competences of the company.

Enlightening pipes

One example is the 3M Light Pipe, a modular sys-

tem based on a 3M Optical Lighting Film. This

thin, flexible film is made of a transparent plastic

produced in a specific microreplication process

developed by 3M and is used in different products

to transport and distribute light uniformly with

extremely high efficiency. Due to the special pro-

duction procedure, the film incorporates very pre-

cise microscopic prisms – a structure that creates

unique optical properties.

A light pipe is made of a transparent, highly stable

polycarbonate tube lined with the microprismatic

Optical Lighting Film. This lighting solution requires

a single luminous source to transport the light

through the pipe and distribute it by reflection. It is

energy-saving and environment friendly, easy to

handle and maintain and offers a bright, diffuse and

reflection-free light. The functional but esthetic solu-

tion is available in different sizes and is used e.g. in

stations, warehouses, tunnels, and office buildings.

Instead of combining it with an artificial light

source, the light pipe can also serve as a distribu-

tor of daylight. In Berlin, the capital of Germany,

Light – a valuable commodityWilli Geser 3M, Neuss, Germany and Roland Bosch, 3M ESPE, Seefeld, Germany

3M lighting systems and Elipar S10

The light pipes with 3M Optical Lighting Film are designed to transport daylight to the underground railway station Berlin Potsdamer Platz.

At night, the pipes are illuminated by an artificial light source.

3M lighting systems and Elipar S10

22

Product Information

for example, three light pipes with a 3M Optical

Lighting Film have been installed to transport day-

light to the underground railway station of Pots-

damer Platz. If the sun is shining, light of an inten-

sity of up to 50,000 lux is transported into the

underground hall – three bright circles of light are

visible on the ground. At night, the pipes become

illuminated sculptures flooded by artificial light.

Lighting in vehicle interiors

3M also provides an interior lighting solution for

automotive design: 3M™ Precision Lighting Ele-

ments (PLEs), highly flexible and transparent

light guides made of polyurethane. They are illu-

minated by an LED light source attached either

at one or at both sides. The reflective patterns

and precise notches in the synthetic guide allow

a variety of different, customizable light effects.

By selecting the appropriate LED, any desired

coloured light effect are realizable. The light

guides are suitable to achieve ambient lighting

effects as well as functional lighting in multiple

locations in the vehicle. PLEs are provided in

diameters of 3 to 12 mm and lengths of up to

1 m.

Curing dental materials

Also in the dental field, light plays a decisive role.

3M ESPE presents Elipar™ S10 LED Curing Light,

a new dental curing device that makes use of lat-

est high-power LED technology to provide an

exceptionally high intensity of 1200 mW/cm². It is

indicated for the polymerization of light-curing

dental materials such as cements, filling materials

and adhesives with photo initiator for the wave-

length range 430 – 480 nm. The one-piece stain-

less steel body of the Elipar S10 manufactured

using hydroforming offers improved hygiene and

robustness as well as an ergonomic handling.

The large 10 mm tip of the light

guide allows easy positioning and

enables the dentist to cure larger

restorations. Even at a distance of 7

mm, a typical distance for a deep cav-

ity, high light intensity of the Elipar

S10 is maintained. This is

important

because

in

some clinical situations, e.g. when a composite

layer at the bottom of a deep cavity is cured, the

light guide cannot be positioned very close to the

dental material. In usual light guides, the light

intensity decreases with increasing distance

between light source and cured surface because

the beams come out in different angles and are

spread – the same amount of light is distributed

over a larger area. Due to 3M nanoreflector

technology and an improved design that allows a

more focused light output, the intensity of the

light emitted with Elipar S10 is great even at a

distance of approximately 7 mm.

Due to its attractive, sleek, and handy design as

well as intuitive handling, working with the Elipar

S10 is pure fun.

Intelligent solutions

Light is the basis for life on earth, and human

beings have learned to utilize it for various pur-

poses. 3M has contributed decisively to the devel-

opment of advanced artificial lighting solutions

that are available today.

3M™ Precision Lighting Elements are highly flexible.

A Precision Lighting Element used in the door covering to illuminate the side compartment.

Elipar S10: the powerful curing solution for dental m

aterials.

Espertise™

magazine

23

Editor:Gerhard Kultermann

Editorial team:Roland Bosch

Tomas Chytil

Sonja von Eichmann

Laslo Faith

Dieter Klasmeier

Carina Koppers

Bettina Richter

Production:www.eberl.de · Immenstadt/Germany

Design and typesetting:Comcord GmbH · Düsseldorf/Germany

Global circulation:197,000

We accept no liability for unsolicited manuscripts

or photographs.

Court of Jurisdiction: Munich

3M, ESPE, Espertise, Elipar, Express, Filtek, Lava, Penta, Pentamix, Protemp, Sendax, ILUMA, Invisalign, DigiGuide, ENDURE are trademarks of 3M or 3M ESPE AG.

© 3M ESPE AG 2009. All rights reserved.

3M ESPE AGESPE Platz82229 Seefeld · GermanyE-Mail: info3mespe@mmm.comInternet: www.3mespe.com

Calendar of Events 2009

Date Event Location Website

01.04.2009 04.04.2009

IADR/AADR/CADR General Session Miami www.iadr.comInternational Association for Dental Research

20.04.2009 23.04.2009

Dental Salon 2009 Moscow www.dental-expo.ruDentaexpo Ltd.

30.04.200902.05.2009

2009 Annual Spring Meeting Toronto www.oda.on.caOntario Dental Association

01.05.200905.05.2009

AAO Annual Session Boston www.aaomembers.orgAmerican Association of Orthodontists

08.05.200910.05.2009

SIDEX 2009 Seoul www.sidex.or.krSeoul Dental Association

07.05.200911.05.2009

31st Asia Pacifi c Dental Congress 2009

Hong Kong www.apdc2009.orgHong Kong Dental Association

12.05.200914.05.2009

Stomatology St. Petersburg St. Petersburg www.primexpo.ru/dental/engPRIMEXPO

14.05.200917.05.2009

Spring Session Anaheim www.cda.orgCalifornia Dental Association

15.05.200916.05.2009

WID Wiener Internationale Dental-ausstellung

Vienna www.wid-dental.atÖsterreichischer Dentalverband

23.05.200926.05.2009

Journées dentaires internationales du Québec

Montreal www.ordredesdentistesduquebec.qc.caOrdre des dentistes du Quebec

10.06.200913.06.2009

Sino-Dental 2009 Bejing www.sinodent.com.cnIHEC

17.06.200920.06.2009

22nd Congress of the International Association of Pediatric Dentistry

Munich www.iapd2009.orgInternational Association of Paediatric Dentistry

02.09.200905.09.2009

2009 FDI Annual World Dental Congress

Singapore www.fdiworldental.orgFDI

08.09.200911.09.2009

Dental-Expo Moscow www.dental-expo.com/index_e.htmDentalexpo Ltd.

10.09.2009 12.09.2009

IADR CED Congress Munich www.ced2009.orgIADR-Continental European Division

24.09.200926.09.2009

CEDE 2009 Poznan http://www.cede.plExactus

24.09.200925.09.2009

Dental Fair 2009 Vejle www.nord-fair.dkNord Fair A/S

30.09.200904.10.2009

ADA Annual Session Honolulu www.ada.orgADA

15.10.200917.10.2009

37th International Expodental Rome www.expodental.itPromunidi S.r.l.

15.10.200917.10.2009

Nordental 2009 Trondheim www.tannlegeforeningen.noDen Norske Tannlegeforening

23.10.200925.10.2009

IDEM India Mumbai www.idem-india.com

E D I T O R I A L Information

Published by:3M ESPE AG

ESPE Platz · 82229 Seefeld

E-Mail: info3mespe@mmm.com

Internet: www.3mespe.com

Espertise™

magazine

General Information