Download الوقاية خير من العلاج درهم وقاية خير من قنطار علاج Pit and Fissure Sealant

‫الوقاية خير من العالج‬
‫درهم وقاية خير من قنطار عالج‬
Pit and Fissure Sealant
Definition
 A fissure sealant is a material that is placed
in the pits and fissures of teeth in order to
prevent or arrest the development of
dental caries.
 It is aprofessional preventive procedure.
Introduction
pits and fissures are the susceptible areas for the
initiation of dental caries (shape,depth)
 Occlusal surface the most affected surfaces.
 Fissure sealant is underutilized.
 It should be cheap, accessible for larger population.

Early attempts to reduce
occlusal caries:
• 1- Hyatt in 1923:
• prophylactic odontomy technique
Bodecker in 1929: fissure eradication
Klein and Knutson in 1942: chemical
agents- ammoniacal silver nitrate
Bowen in 1965: developed the BisGMA resin the organic
matrix Bisphenol-Glycidyl methacrylate
.
Cariostatic action of sealants:
• Sealed surface is 2000 fold less in
bacteria than non sealed.
• Even for carious surface physical properity
of sealant by prevent bact. To produce
acid in cariogenic conc.
Composition of sealants:
••
••
••
••
••
chemically
chemically curing
curing sealants
sealants
ultra-violet
ultra-violet rays
rays for
for curing
curing sealants
sealants
visible
visible light
light cure
cure sealants
sealants
filled
filled or
or unfilled
unfilled
transparent
transparent or
or opaque
opaque ((Opaque
Opaque materials
materials are
are
available
available as
as tooth
tooth coloured
coloured or
or white.
white. The
The transparent
transparent
sealants
sealants are
are clear,
clear, pink or amber )
Selection
Selection of
of Teeth
Teeth
Manipulation Procedure
1) Cleaning:
2) Isolation:
3) Etching:
4) Washing:
5) Application of sealant:
a) Chemically cured sealant.
b) Light cured sealant.
c) Glass ionomer.
6) Check occlusal interferences:
7) Re- evaluation: