MARGINAL LEAKAGE TEST ON HI-POL COMPOSITE RESIN

Lim,  Sung-Sam

J Korean Dent Assoc > Volume 15(11); 1977 > Article

The Journal of The Korean Dental Association 1977;15(11):757-761.
Published online November 30, 1977.

국산 하이폴 복합레진의 변록누출에 관한 실험적 연구

임성삼

서울대학교 치과대학 보존학교실

MARGINAL LEAKAGE TEST ON HI-POL COMPOSITE RESIN

Sung-Sam Lim

Dept. of Operative Dentistry, College of Dentistry, Seoul National University

Abstract

The purpose of this study was to evaluate the marginal sealing ability of Hipol composite resin. Using freshly extracted human teeth and 2% acquous methylene blue, the marginal leakage of dye in restorative materials such as Hi-pol, Adaptic, Nuvasystem, Epolite and Amalgam was investigated at 37℃ and under temperature cycling between 4℃ and 60℃. The results were as follows; 1. All the filling materials revealed the penetration of dye between cavity walls and restorations. 2. Hi-pol and Adaptic showed more marginal leakage than other materials and the degree of dye penetration in Hi-pol was similar to that of Adaptic. 3. Nuva system showed the least marginal leakage at 37℃ and under temperature cycling between 4℃ and 60℃. 4. Under temperature cycling, all materials showed a slight increase in marginal leakage except Epolite, which showed the greastest change in leakage.