수종의 상아질 접착제와 복합레진의 적합성에 관한 연구
A study on the compatibility of dentin adhesives with composite resins
박진성, 이종철,
소속 상세정보
박진성 ( ) - 서울대학교
이종철 ( ) - 서울대학교
KMID : 0362319950200010214
Abstract
The purpose of this work was to study the compatibility of several commercially available dentin adhesives with composite resins. In this study, V-shaped cavity preparations were created on both buccal and lingual surfaces of 60 extracted human
premolars(3mm×3mm×2mm deep). Preparations were located such that the occlusal margins were on the enamel and the gingival margins were on the cementum(1mm below the CEJ). These specimens were randomly divided into three equal groups. Three
dentin
adhesives(Scotchbond Multi-Purpose, All Bond 2, Prisma Universal Bond 3) were applied to the cavity in accordance with each manufacturer's instructions. The teeth in each group were restored with four composite resins(Silux plus, Z100, Bisfil,
Prisma
TPH) in three increments, with each increment light-cured for 40 seconds. All specimens were exposed to 500 cycles of thermal stress. Specimens then placed in a silver nitrate solution(50% by weight) and stored in darkness for 24 hours. They were
then
immersed for 6 hours in photographic developing solution under flourescent light. Specimens were sectioned buccolingually through the center of the restoration and observed under a binocular stereoscope. To compare the marginal leakage, ANOVA and
Dunkan's multiple range tests were used in analysis. Selected samples were further studied using scanning electron microscopy(XL20, Philips, The Netherlands).
@Es The results were as follows.
@EN 1. In all groups, the enamel margin showed significantly less leakage than the cementum margin.
2. No statistically significant differences were found in microleakage when composite resins were used with their proprietary dentin adhesives.
3. In comparison between dentin adhesives, Prisma Universal Bond 3 showed significantly less leakage at the enamel margin and Scotchbond multi-purpose showed significantly less leakage at the cementum margin than the other groups.
4. In comparison between composite resins, Silux Plus showed significantly more leakage ethan other groups at the enamel margin and no statistically significant differences were found in microleakage at the cementum margin.
5. According to the backscattered scanning electron microscope, microleakage occurred via gaps at the dentin adhesives/dentin interface
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