A Study of Marginal Leakage on Various Filling Materials

Lee,  Yoon-Sang; Kim,  Hong-Suk; Park,  Ka-Myung

J Korean Dent Assoc > Volume 11(5); 1973 > Article

Journal of Korean Dental Association 1973;11(5):337-340.
Published online May 31, 1973.

수종충전재의 변연누출에 관한 실험적 연구

이윤상¹, 김홍석², 박가명³

^¹서울대학교 치과대학 보존학교실
^²서울대학교 치과대학 보존학교실
^³서울대학교 치과대학 보존학교실

A Study of Marginal Leakage on Various Filling Materials

Yoon-Sang Lee¹, Hong-Suk Kim², Ka-Myung Park³

¹Dept. of Operative Dentistry, Graduate School, Seoul National University
²Dept. of Operative Dentistry, Graduate School, Seoul National University
³Dept. of Operative Dentistry, Graduate School, Seoul National University

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.