テンポラリーレストレーション用常温重合レジンの曲げ強さ

概要

論文の詳細を見る
Temporary restorations are important to recover oral functions and esthetics. However, the large sized temporary bridge is often destroyed or comes off. The destruction of temporary bridge is mainly due to the lack of mechanical property, particularly bending strength. The purpose of this study is to evaluate the bending strength of various self-cured temporary resins. For experimental materials four kinds of MMA-PMMA type resins and two kinds of Bis-acrylic type composite resins were selected. Three-point bending test and thermo cycling test were carried out and the bending strength of each self-cured resins was evaluated. The results were as follows : 1. In the early stages of hardening, the bending strength of Bis-acrylic type composite resin was lower than that of the MMA-PMMA type resin. 2. After 2000 times of thermo cycling, the bending strength of two kinds of MMA-PMMA type resins and two kinds of Bis-acrylic type composite resins was improved.
奥羽大学の論文
2005-03-31