Upload
dr-parveen-bathla
View
220
Download
0
Embed Size (px)
Citation preview
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
1/27
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
2/27
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
3/27
Presented to:-DR.RITU JINDAL The Head of the Department
Presented by:-PARAMJIT KAUR
BDS Final prof.
Rollno. 40
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
4/27
OR L C VITY
OF
NEON TES
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
5/27
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
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
6/27
PREDENT TE
PERIODDEFINITION :- Pre dentate period isdefined as the period from birth to the
eruption of the first deciduous teeth inthe oral cavity.
.
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
7/27
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 .
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
8/27
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).
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
9/27
Gum pads showing :-2. Dental groove
1. Gingival groove3. Lateral sulcus
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
10/27
UPPER GUM P D
Horse shoe shaped. Upper gum pad is divided into 10 segmentsby transverse groove .
Gingival groove separates the gum pad frompalate.
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
11/27
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.
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
12/27
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
13/27
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.
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
14/27
Dental groove running backwards and
join the gingival groove in the canineregion. Lateral sulcus present betweendeciduous canine and first molarsegment.
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
15/27
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
16/27
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 .
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
17/27
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
18/27
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.
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
19/27
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
20/27
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.
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
21/27
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.
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
22/27
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.
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
23/27
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.
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
24/27
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.
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
25/27
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
26/27
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.
8/12/2019 40. Paramjit Kaur - Oral Cavity of Neonates.pptx
27/27