must be refrigerated for professional dental use only

Must be refr igerated

For Professional Dental Use Only

Lang Dental Manufacturing, Co., Inc. / Wheeling, IL 60090 USA

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IntroductionNOVUS is a laboratory-processed resilient denture liner material intended for long term clinical use, made from polyphosphazene fluoroelastomer. It is a combination of a high-tech synthetic rubber and cross-linking acrylics, which improves the chemical bond to denture base resins while providing the patient a pleasing cushion that absorbs shock, remains soft permanently, resists fungus growth, is X-ray opaque, and improves clinical retention and function of the denture. It is easy to process using standard dental laboratory equipment and temperatures, and requires no special instruments for finishing.

Important: Store noVUS in a refrigerator or freezer when not in use to prevent premature polymerization.

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IntroductionADA CDT Procedure Codes for Denture Relines:

D5750 reline complete maxillary denture (laboratory)

D5751 reline complete mandibular denture (laboratory)

D5760 reline maxillary partial denture (laboratory)

D5761 reline mandibular partial denture (laboratory)

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Instructions [new denture]

1 Invest the master cast of the denture and the waxup in the normal manner.

2 Boil-out and paint both halves of the flask with Lang’s Liquid Foil while the flask is still warm. Paint the casts including all land surfaces with Lang’s Liquid Foil. This will make it easier to remove excess acrylic and NOVUS during trial packing.

1

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3 Prepare a spacer for the denture liner on the master cast from any of the following materials: silicone putty (preferred), spacer paper, vacuum-formed sheet, tinfoil, light-cured baseplate or hard wax. (If hard wax is used, pay close

2

attention to Step 7 as the wax can leave a residue that will reduce bonding of NOVUS to the denture base.)

The spacer should be 1-1½ mm at the edge of the flanges, increasing to 2½ mm over the crest of the ridge. There should be at least 1 mm of hard denture-base resin for strength all the way to the edge of the flanges. For an overdenture, implant retention or other bony undercuts (pre- and postmylohyoid fossae, tori or exostoses), add sufficient spacer to gain retention, stability and support.

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4 With the spacer in place on the cast and using a polyethylene sheet as a separator, pack Lang’s High Impact-45 denture base resin dough in the flask.

5 Trial pack as needed. Remove all excess acrylic resin. Close the flask in the press with the spacer and separator sheet still in place. Ensure that all undercuts are relieved, so that the flask can be opened after the resin has hardened.

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notE: If a stabilized baseplate or record base it is used for the set-up, it may be used as the NOVUS spacer if it is the proper thickness as described on Step 3.

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notE: Some denture base resins may cure faster than others. Resins with long working time will require heat to start the curing.

4

6 Place the flask in a denture clamp. Partially cure the acrylic base by one of the following methods.

A. Place the flask in a 165°F (74°C) water bath for 30-45 minutes; then COMPLETELY cool. (NOT appropriate if wax was used as a spacer.)

B. Allow to set for 6-8 hours on the bench at room temperature.

notE: NOVUS must be packed against a hard denture base, as it can displace the acrylic if it is still soft.

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8 From this step forward, work with very clean hands to avoid contaminating NOVUS. Cut a strip of NOVUS 3-5 mm wide. Alternately, weigh the silicone spacer and weigh a similar mass of NOVUS to start.

7 Open the flask and discard the spacer and separator sheet. Remove any loose foil. Reapply liquid foil separator, if needed, and allow time for it to dry before continuing. If wax is used as a spacer, remove all wax residue to avoid bond failure of NOVUS.

5

notE: If a mandibular denture is very thin, consider inserting some form of reinforcement.

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9 Knead the material to collapse any voids or bubbles if they are visible. Place NOVUS liner material on the crest of the ridge of the master cast, from one side around the arch to the other.

10 Place a sheet of polyethylene between NOVUS and the cast. Close the flask.

6

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11 Place the flask in the denture press and slowly apply pressure (1,000-1,500 psi or 6.9-10.3 MPa) for 5-10 minutes to allow NOVUS to fill the mold. (If using a hand press, apply pressure until flash appears. Hold pressure for 1-2 minutes; repeat until the appropriate pressure is reached. Then hold for 15 minutes longer.)

notE: Because of its elastic memory, NOVUS needs more time than other materials to relax in the mold.

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12 Open the flask; gather up and save the excess NOVUS.

notE: It is normal for NOVUS to draw back slightly from the cast.

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8

13 Add additional material as needed, especially in the heel areas. On second and subsequent trial packs, increase pressure to 2,500-3,000 psi (17.2-20.7 MPa).

notE: Even if there is excess material all the way around the cast of the first trial pack, it is a good idea to add a small amount of excess NOVUS and trial pack a second time.

notE: If using a hand press, maintain pressure, as it may drop as NOVUS relaxes.

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15 Open the flask and remove the separator sheet. Paint the denture base with a thin coat of NOVUSBOND™ and allow it to dry. Close the flask.

9

14 When NOVUS flash is seen completely around the cast, gather it up and save. Place the flask back in the press for 10-15 minutes, allowing the NOVUS liner to relax further and adapt to the cast.Refrigerate or freeze remaining unused NOVUS as soon as packing is finished.

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16 Place the clamped flask into a water bath for curing.

Slow Cure Method: 165°F (74°C) for 8 hours, then boil for 30 minutes (for best results).

Fast Cure Method: 165°F (74°C) for 2 ½ hours, then boil for 30 minutes.

At high altitudes, increase boiling time to 2 hours.

Do not SHort CUt: Insufficient curing time or heat will result in an undercured denture liner and loss of physical properties.

17 After curing, divest the denture in the usual fashion.

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11

18 Finish the NOVUS liner with a sharp, fine carbide bur, grinding wheel, arbor band or sandpaper, followed by wet pumice and light pressure on the borders. Do not attempt to high shine. Always grind and smooth from the resilient liner TOWARD the denture base to avoid initiation of peeling.

19 Store the finished denture in a moist environment to avoid shrinkage and distortion.

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Existing Denture [reline]

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1 Create a master cast of the tissue surface for the existing denture in the normal manner.

2 RELINE TECHNIQUEA. Invest the master cast in a compression-type flask and fill the flask against the tooth surface with hard gypsum.

B. When the stone is set, open the flask and remove the denture from the master cast.

C. Grind out the reline material and 2-3 mm of the discolored denture base acrylic from the denture.

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REBASE TECHNIQUEA. Cover the tooth surface with silicone putty and add retention to lock the silicone to gypsum, which is then used to fill the flask.

B. Open the flask and remove the denture completely.

C. Cut away the entire acrylic denture base up to the denture teeth.

D. Reset the teeth in the putty mold.

3 Paint the casts including all land surfaces with Lang’s Liquid Foil. This will make it easier to remove excess acrylic and NOVUS during trial packing.

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Instructions [reline]

14

4 Prepare a spacer on the cast from any of the following materials: silicone putty (preferred), spacer paper, vacuum-formed sheet, tinfoil, light-cured baseplate or hard wax. (If hard wax is used, pay close attention to Step 8 as the wax can leave a residue that will reduce bonding of NOVUS to the denture base.)

The spacer should be 1-1½ mm at the edge of the flanges, increasing to 2½ mm over the crest of the ridge. There should be at least 1 mm of hard denture-base resin for strength all the way to the edge of the flanges. For an overdenture, implant retention or other bony undercuts (pre- and postmylohyoid fossae, tori or exostoses), add sufficient spacer to gain retention, stability and support.

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5 With the spacer in place on the cast and using a polyethylene sheet as a separator, pack a thin layer of Lang’s High Impact-45 acrylic denture base resin dough in the flask to ensure best bonding of NOVUS to the existing denture.

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notE: Old denture base acrylic may be contaminated with organic material which can affect the bond.

6 Trial pack as needed. Remove all excess acrylic resin. Close the flask in the press with the spacer and separator sheet still in place. Ensure that all undercuts are relieved, so that the flask can be opened after the resin has hardened.

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16

7 Place the flask in a denture clamp. Partially cure the acrylic base by one of the following methods.

A. Place the flask in a 165°F (74°C) water bath for 30-45 minutes; then COMPLETELY cool. (NOT appropriate if wax was used as a spacer.)

B. Allow to set for 6-8 hours on the bench at room temperature.

notE: NOVUS must be packed against a hard denture base, as it can displace the acrylic if it is still soft.

notE: Some denture base resins may cure faster than others. Resins with a long working time may require heat to start the curing.

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17

8 Open the flask and discard the spacer and separator sheet. Remove any loose foil. Reapply liquid foil separator, if needed, and allow time for it to dry before continuing. If wax is used as a spacer, remove all wax residue to avoid bond failure of NOVUS.

9 From this step forward, work with very clean hands to avoid contaminating NOVUS. Cut a strip of NOVUS 3-5 mm wide. Alternately, weigh the silicone spacer and weigh a similar mass of NOVUS to start.

notE: If a mandibular denture is very thin, consider inserting some form of reinforcement.

NOVUS 2012 r1.indd 20 5/31/12 2:43 PM


18

10 Knead the material to collapse any voids or bubbles if they are visible. Place NOVUS liner material on the crest of the ridge of the master cast, from one side around the arch to the other.

11 Place a sheet of polyethylene between NOVUS and the denture. Close the flask.

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19

12 Place the flask in the denture press and slowly apply pressure (1,000-1,500 psi or 6.9-10.3 MPa) for 5-10 minutes to allow NOVUS to fill the mold. (If using a hand press, apply pressure until flash appears. Hold pressure for 1-2 minutes; then repeat until the appropriate

pressure is reached. Then hold for 15 minutes longer.)

notE: Because of its elastic memory, NOVUS needs more time than other materials to relax in the mold.

13 Open the flask; gather up and save the excess NOVUS.

notE: It is normal for NOVUS to draw back slightly from the cast.

NOVUS 2012 r1.indd 22 5/31/12 2:43 PM


20

14 Add additional material as needed, especially in the heel areas. On second and subsequent trial packs, increase pressure to 2,500-3,000 psi (17.2-20.7 MPa).

notE: Even if there is excess material all the way around the cast of the first trial pack, it is a good idea to add a small amount of excess NOVUS and trial pack a second time.

notE: If using a hand press, maintain pressure, as it may drop as NOVUS relaxes.

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15 When NOVUS flash is seen completely around the cast, gather it up and save. Place the flask back in the press for 10-15 minutes, allowing the NOVUS liner to relax further and adapt to its new shape.

16 Open the flask and remove the separator sheet. Gather up the excess NOVUS, which can be used for future cases. Refrigerate or freeze remaining unused NOVUS as soon as packing is finished.

21

notE: If using silicone putty as a spacer (REBASE Technique), both halves of the flask may be retained to duplicate the denture at a later date.

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17 Paint the denture base with a thin coat of NOVUSBOND™ and allow it to dry. Close the flask.

18 Place the clamped flask into a water bath for curing.Slow Cure Method: 165°F (74°C) for 8 hours, then boil for 30 minutes (for best results).Fast Cure Method: 165°F (74°C) for 2 ½ hours, then boil for 30 minutes.

At high altitudes, increase boiling time to 2 hours.

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19 After curing, divest the denture in the usual fashion.

DO NOT SHORT CUT: Insufficient curing time or heat will result in an undercured denture liner and loss of physical properties.

21 Store the finished denture in a moist environment to avoid shrinkage and distortion.

20 Finish the NOVUS liner with a sharp, fine carbide bur, grinding wheel, arbor band or sandpaper, followed by wet pumice and light pressure on the borders. Do not attempt to high shine. Always grind and smooth from the resilient liner TOWARD the denture base to avoid initiation of peeling.

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AdditionalNOVUS is also useful in removable appliances against implant abutments and bars.

WARRANTy Manufacturer warrants this product to be free from manufacturing defects for one year from date of purchase. Warranty is void if product is not used for intended purpose, not used as instructed or not stored refrigerated in original container.

CONTRAINDICATIONS NOVUS is contraindicated in patients with allergies to methyl methacrylate.

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RE-ORDER rEF 46I

1 X 50g Patty Novus, NovusboNd™ 10ml, disposable brushes

rEF 46p 3 X 50g Patty Novus, NovusboNd™ 10ml, disposable brushes

rEF 46B 9 X 50g Patty Novus, NovusboNd™ 10ml, disposable brushes

Call your local distributor or visit langdental.com for ordering information.

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Additional [Products]

HIGH ImpaCt-45™

Impact resistant heat cure denture resin, formulated specifically to resist breakage

Modified methyl methacrylate formula that decreases crazing and fracturing under stress


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prEmIUm SUpEr-20™ Fast processing —cures in 20 minutes using the fast heat cure technique

Premium quality which provides a “fast heat cure” with the same Premium Resin quality

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Additional [Products]

SELF CUrInG Autopolymerizing that allows for longer working time, cures in 15-20 minutes

Advanced technology, cures without the use of heat or special equipment


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Lang Dental Mfg. Co., Inc.175 Messner drive Wheeling, IL 60090 usA(847) 215-6622 Fax (847) 215-6678

Toll free in u.s. & Canada 800-222-LANG (5264) Fax: 866-278-8510www.langdental.com

©2012 Lang dental Mfg. Co., Inc. LANG, is the registered trademark of Lang dental Mfg. Co., Inc. JET, High Impact-45, Novusbond and Premium super-20 are the trademarks of Lang dental Mfg. Co., Inc. All rights reserved.

Ldd 46 R.1

MediMark® Europe Sarl BP 2332 38033 Grenoble Cedex 2 France 10°C/50°F

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must be refrigerated for professional dental use only

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