An Experimental Study on the Tensile Strength of Dental Cements

Suh,  Kyu-Won

J Korean Dent Assoc > Volume 11(1); 1973 > Article

The Journal of The Korean Dental Association 1973;11(1):41-44.
Published online January 31, 1973.

치과용 Cement의 장력에 관한 실험적 연구

서규원

서울대학교 대학원 치의학과 보철학

An Experimental Study on the Tensile Strength of Dental Cements

Kyu-Won Suh

Dept. of Prosthetic Dentistry, Graduate School, Seoul National University

Abstract

The experiment consisted of cementing full veneer crown of extracted teeth and a standardized cylindrical metal dies (6mm diameter, 6mm height, 1mm shoulder) and then measuring the tensile strength required to remove the cemented restoratoins by the Instron testing machine in the Korea Institude of Science and Technology. The Instron machine was operated at a rate of loading of 0.2cm per minute. From the experiments, the following results obtained. 1. The tension of zinc phosphate and alumina EBA cements were highest all of the cements. 2. The tension of Fynal and the addition of eugenol to zinc Phosphate cements were similar. The addition of eugenol to zinc phosphate cement was half stength and Fynal cement was on third strength than zinc phosphate cement. 3. The tension of zinc oxide-eugenol cement was lowest all of the cements.