40. paramjit kaur - oral cavity of neonates.pptx

8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx

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Presented to:-DR.RITU JINDAL The Head of the Department

Presented by:-PARAMJIT KAUR

BDS Final prof.

Rollno. 40


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OR L C VITY

OF

NEON TES


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O N T N T S :- Pre -dentate period Gum pads Features of gum pads Upper gum pad

Lower gum pad Growth of gum pad Relationship of gum pads

Cleaning of gum pads Tongue Tonsils and adenoids Buccal pad of fat


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PREDENT TE

PERIODDEFINITION :- Pre dentate period isdefined as the period from birth to the

eruption of the first deciduous teeth inthe oral cavity.

.


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GUM PADSDEFINITION: The alveolararches of an infant are calledgum pads.

Gumpads develops in 2

parts:- Labial portion Lingual portion

These portions are separated from each other by a dentalgroove which is the site oforigin of the dental lamina .


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FE TURES : - Thickened oral mucous membrane of the

gums. Pink in color and firm in consistency . Each gum pad is divided into ten segments by

transverse grooves. The groove between the deciduous canine

and first molar region segments areprominent and called as lateral sulcus (helpsto judge the inter arch relationship).


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Gum pads showing :-2. Dental groove

1. Gingival groove3. Lateral sulcus


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UPPER GUM P D

Horse shoe shaped. Upper gum pad is divided into 10 segmentsby transverse groove .

Gingival groove separates the gum pad frompalate.


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Dental groove originates in the incisive

papilla region and extends backwards totouch the gingival groove in the canineregion and then laterally to end in themolar region. Lateral sulcus present between

deciduous canine and first molarsegment.


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LOWER GUM P DS

U-shaped with its anterior portion everted labially. Lower gum pad is divided into 10 segments bytransverse grooves .

Gingival groove separates the gum pad from thefloor of the mouth.


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Dental groove running backwards and

join the gingival groove in the canineregion. Lateral sulcus present betweendeciduous canine and first molarsegment.


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GROWTH OF GUMP DS

At birth the width of the gum pads are inadequate toaccommodate all the incisors. The growth of gum pads is rapid in the first year afterbirth. Growth is more in a transverse direction and in the labio-lingual direction.

Due to growth the segments of each gum pad becomeprominent. Eruption of deciduous teeth commences at six months .


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DURING FUNCTION :- mandible movesvertically and in antero-posterior direction. Lateral movements are absent. Contact is at the first molar region withspace in the anterior region facilitate

suckling.


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Now a days specially designedmaterials used such as:-

1. Infant tooth brush

2. Finger coats

3. Wipes . Use adequate pressure

just to remove the filmthat covers the gum pad.

Clean at least every day

twice after morning andlast feed in the night.

Duration of cleaning:

2 to 3 minutes.


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TONGUE The tongue is flat, thin and blunt tipped probablydue to the short frenum. The tongue, at this stage performs only onefunction, i.e . act as a piston while suckling.


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TONSILS

ANDADENOIDS

AT BIRTH:- tonsils and adenoids are small in size.Clusters of white yellow follicles with erythematousborders may appear initially. A few days after birth

these may regress. FIRST FEW MONTHS:- The growth of tonsils andadenoids takes place as the lymphoid tissue starts

proliferating and establishing function.


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SIX MONTHS TO 2 YEARS:-Maximum growthoccurs as the primary physiological enlargement . AT SIX YEARS:-Hypertrophy occurs ,when thechild is exposed to infection at school, this is thesecondary physiological enlargement .

AT PUBERTY:-The regression and atrophy of thenasopharyngeal lymphoid tissue finally occurs bythe time the child attains puberty.


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BUCC L P DOF F T

SYNONYMS:- Corpus adiposumBichats fat pad

It is the childs reserve of energy.it is nothing but the cheekprominence giving the infant chubbycheek appearance. it is formed of firm encapsulatedmass of fat lying between the

subcutaneous fat and muscles ofcheek. Its exact role in suckling is notknown but it has been found toregress once the suckling hasceased.


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WINDOW OF INFECTIVITY

CAUFIELD (1993) monitored oral cavity levels from birth upto 5 yrs. The initial acquisition mutans S.& designed the time period

as WINDOW OF INFECTIVITY . As the teeth erupt in the oral cavity they provide virgin

habit which enables MS to colonize the oral cavity avoidingcompetition with other indigenous bacteria.

Thus in the window period in deciduous teeth the MS isestablished by 7-31 months of age & may have difficulty inestablishing later because it would need to compete withother indigenous bacteria.


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40. paramjit kaur - oral cavity of neonates.pptx

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