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

Journal of the Korean Academy of Pediatric Dentistry 2010;37(3):345-351.
Published online August 31, 2010.

A STUDY OF MICROLEAKAGE AND PENETRATION ABILITY OF A PIT AND FISSURE SEALANT APPLIED ON CARIOUS FISSURES

El Im, Sang-Ho Lee, Nan-Young Lee

Department of Pediatric Dentistry, School of Dentistry, Chosun University

우식성 열구에 적용한 치면열구전색제의 미세누출과 침투도에 관한 연구

임엘, 이상호, 이난영

조선대학교 치과대학 소아치과학교실

Correspondence: Nan-Young Lee, Tel: 062-220-3860, Email: nandent@chosun.ac.kr

Received: 18 May 2010 • Accepted: 8 August 2010

Abstract

he 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.

Key Words: Carious fissure, Sealant, Microleakage, Penetration