A COMPARATIVE STUDY ON THE MICROLEAKAGE OF PRVENTIVE RESIN RESTORATION USING FLOWABLE COMPOSITE RESIN

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Journal of the Korean Academy of Pediatric Dentistry 2000;27(3):419-430.
Published online August 31, 2000.

A COMPARATIVE STUDY ON THE MICROLEAKAGE OF PRVENTIVE RESIN RESTORATION USING FLOWABLE COMPOSITE RESIN

유동성 복합 레진을 적용한 예방적 레진 수복물의 미세 누출 양상에 관한 비교 연구

박헌정, 김종수, 김용기

단국대학교 치과대학 소아치과학교실

Abstract

The purpose of this study was to compare the microleakage pattern of preventive resin restoration using conventional composite resin and flowable composite resin that recently developed. 60 sound premolar teeth were allocated to three groups. Flowable composite resin was used for the experimental groups(Group I and II) and conventional resin for the control group(Group III). After composite filling and sealant application, all teeth were thermocycled and evaluated for microleakage under light microscope. Additionally, a variety of voids formed inside restorations were also evaluated. Data were analyzed statistically using Kruskal-Wallis test and/or Mann-Whitney U-test. The results of the present study were as follows. 1. Microleakage found in all samples was only limited to the interface of restoration margin and enamel. 2. The flowable composite resin groups (Group I, II) generally showed less microleakage than control groups (conventional preventive resin restoration) (p<0.05) 3. Various types of voids were observed in most specimens. Especially, there was a tendency for more and larger voids to be found in group I, II than group III (p<0.05).

Key Words: Composite resin, Flowable composite resin, Microleakage, Preventive resin restoration, Sealant, Voids