The Measurement of Exothermic Temperature During Polymerization of Various Direct Resins.

Yun,  Joung-Hyun

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

The Journal of The Korean Dental Association 1973;11(1):37-40.
Published online January 31, 1973.

각종 치과용 다이렉트 레진의 중합 반응시 열 측정

윤중현

서울대학교 대학원 치의학과 보존학

The Measurement of Exothermic Temperature During Polymerization of Various Direct Resins.

Joung-Hyun Yun

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

Abstract

The auther measured exothermic tempreature of the 5 kinds of direct resins during polymerization. Direct resins were mixed into the rubber cup(550-600㎣ in volume) with grass rod at room temperature (23.6℃) for 30 seconds and thermometer was placed approximately at the geometric center of the resin mass in the rubber cup. Polymer-monomer ratio was determined by instruction of the packages. The results were as follows. 1) The heat generated during polymerization was under 47.3℃. 2) The time at which the highest temperature is reached during polymerization was within 20.5 minutes. 3) Slow curing resins produced lower heat than quick curing resins and quick curing resins presented higher temperature than slow curing resins. 4) The highest temperature was sustained momentarily.