الفهرس 
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Abstract
Dental caries is the most common chronic disease in childhood. New methods of caries prevention have been focusing
on occlusal pit and fissure caries, as this type of caries have
always been the earliest and most prevalent of all types. Different
types of fissure sealants have been investigated, and it is a clear
fact that clinical retention of sealants was found to be the factor of
highest impact on caries prevention. However, achieving a
successful and durable bonding procedure involves many steps, is
technique sensitive, and time consuming.
This study was planned to evaluate sealant retention and
development of caries Embrace wetbond and Clinpro. Clinpro
was used as a conventional BIS-GMA unfilled resin and
Embrace wetbond is one of relatively recent introduced sealant
tested to be used in moisture conditions and has physical
properties similar to other commonly used sealant.
Subjects and methods:
- The criteria used to determine sealant status was Modified
Simonsen’s criteria, 1991 for evaluation of sealant retention and
development of caries, which are relatively simple to follow.
Starting follow up immediately after insertion (baseline) and a
follow up periods: 2 month, 4 months, .6 months and scores
ranging from score 0 to score 4.
- A total number of thirty eight patients were selected from
outpatient clinic in Pediatric and Public Health Department,
Faculty of Dentistry Cairo University. Their ages ranged from 6-
9 years.
- Each patient had two mandibular right and left first permanent
molars with deep pits and fissures and caries free, (Split mouth
technique).
- The materials were applied using rubber dam isolation, and
according to manufacturers’ instructions for every material.
- The total sample was divided into two groups, group A: in
which randomly mandibular first permanent molars on the lower
right or left side of the jaw were sealed with Embrace wetbond,
and group B: in which randomly mandibular first permanent
molars on the lower right or left side of the jaw were sealed with
Clinpro.
Immediately after treatment (baseline), clinical evaluation for
the sealants was inspected by dental explorer and the occlusion
was checked by articulating paper.