AN EXPERIMENTAL STUDY OF THE EFFECT OF TEMPORARY CEMENTS ON THE BOND STRENGTH OF PERMANENT CEMENTS

Lee,  Jin-Ho; Lee,  Ho-Yong; Han,  Dong-Hoo

J Korean Dent Assoc > Volume 22(9); 1984 > Article

The Journal of The Korean Dental Association 1984;22(9):803-811.
Published online September 30, 1984.

치과용 임시합착 시멘트가 영구합착 시멘트의 결합력에 미치는 영향에 관한 실험적 연구

이진호¹, 이호용², 한동후³

^¹연세대학교 치과대학 보철학교실
^²연세대학교 치과대학 보철학교실
^³연세대학교 치과대학 보철학교실

AN EXPERIMENTAL STUDY OF THE EFFECT OF TEMPORARY CEMENTS ON THE BOND STRENGTH OF PERMANENT CEMENTS

Jin-Ho Lee¹, Ho-Yong Lee², Dong-Hoo Han³

¹Dept. of Prosthodontics, College of Dentistry, Yon Sei University
²Dept. of Prosthodontics, College of Dentistry, Yon Sei University
³Dept. of Prosthodontics, College of Dentistry, Yon Sei University

Abstract

The purpose of this study was to research how temporary cementation effected on the bond strength of permanent cementation. Zinc phosphate, polycarboxylate and EBA ZOE cements were used as permanent cements, and as temporary cements Nogenol, Tempak and Dycal were used. The ninety six (96) specimens were prepared to measure the bond strength of permanent cements after treated with temporary cements for one week. The tensile stregths were measured with an Instron Universal Test Machine. The results of this study were obtained as follows: 1. With zinc phosphate cement, there was a tendency that the bond strengths of the group of temporarily cemented with Nogenol were increased, meanwhile they were decreased a little in the groups of Dycal and Tempak than those of the control group. 2. With polycarboxylate cement, there was a tendency that the bond strengths of the Control group were higher than those of experimental groups and they were decreased in order of Tempak, Noginol, and Dycal. 3. With EBA ZOE cement, there was a tendency that the bond strengths of the group of temporarily cemented with Tempak were increased a little, meanwhile they were decreased a little in the groups of Nogenol and Dycal than those of the Control group. 4. Among the permanent cements, the bond strengths of polycarbosylate cement were the highest and were followed in order of zinc phosphate cement and EBA ZOE cement.