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KMID : 0358920100370030345
Journal of the Korean Academy of Pedodontics
2010 Volume.37 No. 3 p.345 ~ p.351
A STUDY OF MICROLEAKAGE AND PENETRATION ABILITY OF A PIT AND FISSURE SEALANT APPLIED ON CARIOUS FISSURES
Im El

Lee Sang-Ho
Lee Nan-Young
Abstract
The purpose of this study is to compare microleakage and penetration depths of sealants applied in carious and sound fissures. Extracted premolars(n=80) were divided into 4 groups according to caries status. 1; sound, 2; stained, 3; initial caries, 4; enamel caries. Sealants were applied to the occlusal groove as per manufacturers¡¯ instructions, and specimens were thermocycled, stained, sectioned, and examined for microleakage and penetration ability. The results of the present study are as follow: 1. It showed significantly higher microleakage scores in group I than group Two, Three, Four(p<0.05), but no significant difference was found between group Two, Three, and IV(p>0.05). 2. It showed significantly higher penetration scores in group Four (p<0.05), followed by group One, Two, Three, but no significant difference was found between group One, Two, and Three(p>0.05). Based on the results of present study, when the borders of the fissure sealant are on carious enamel, a significantly higher microleakage must be expected. It is considered that depth of enamel caries in the fissure should be taken into account when applying a fissure sealant.
KEYWORD
Carious fissure, Sealant, Microleakage, Penetration
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