치근 우식 수복에 사용되는 심미성 수복물의 변연누출에 관한 연구
A STUDY ON THE MARGINAL LEAKAGE OF ESTHETIC RESTORATIVE MATERIALS ON ROOT CARIES RESTORATION
한진선, 임미경,
소속 상세정보
한진선 ( ) - 전북대학교
임미경 ( ) - 전북대학교
KMID : 0362319930180010205
Abstract
The purpose of the study was to evaluate the degree of the marginal leakage of esthetic restorative materials on root caries restoration.
120 cavities were prepared to 90°butt joint on all margins on the crown and root portion, and divided into 4 groups.
The four groups of cavity were filled with Amalgam(Dongmuyung Dental Alloy Co., Ltd, KOREA), Silux(3M Co., USA)-Scotch Bong 2(3M Co., USA), Silux-All Bond(BISCO USA), and GC Fuji II (G-C Co., JAPAN) respectively.
The apical margin of the preparation was finished to leave a flash of restorative material.
The coronal margin of the preparation was finished not to leave a flash of restorative material.
All specimens were sectioned longitudinally with Isomet Low speed saw(Buether Ltd, USA).
The degree of dye penetration was evaluated as the parameter of marginal leakage under the stereoscope.
@ES The results were as follows.
@EN 1. At the enamel and dentin/cementum margins, the margin were finished to leave a flash of material showed less marginal leakage than that were finished not to leave a flash of material(P<0.001).
2. The enamel margins showed less marginal leakage than the dentin/cementum margins(P<0.001).
3. There was no significant difference in the degree of the marginal leakage between Silux-scotch Bond 2 group and Silux-All Bond group.
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