수종충전재의 변연누출에 관한 실험적 연구
A Study of Marginal Leakage on Various Filling Materials
이윤상, 김홍석, 박가명,
소속 상세정보
이윤상 ( Lee Yoon-Sang ) - 서울대학교 대학원 치의학과 보존학
김홍석 ( Kim Hong-Suk ) - 서울대학교 치과대학 치과보존학교실
박가명 ( Park Ka-Myung ) - 서울대학교 대학원 치의학과 보존학
KMID : 0362719730110050337
Abstract
The authers have studied the marginal leakage on various filing materials : Composite resin, Polycarboxylate cement, Zinc phosphate cement, Silicate cement and Zinc-oxide eugenol cement, by means of penetration of 2% aquous methylene blue between cavity walls and filing materials at body temperature and at thermal changs in the range of 4~60℃ The results revealed as follows. 1) All the filling materials revealed the penetration of dye between cavity walls and filling materials. 2) Zinc-oxide eugenol cement was the most effective to prevent the dye penetration on the contrary silicate cement cases showed greatest leakage at 37℃ and at temperature changes in range of 4-60℃. 3) The composite resin showed moderate leakage either at 37℃ or at thermal changes 4) Marginal obstructions of polycarboxylate cement were unsatisfactory at 37℃ and at temperature changes.
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