수종 치과용 석고의 마모저항도 및 표면조도에 관한 비교 연구

A STUDY ON THE ABRASION RESISTANCE AND SURFACE ROUGHNESS OF THE DENTAL STONES

  • 심혜원 (강릉대학교 구강과학연구소) ;
  • 이양진 (강릉대학교 구강과학연구소) ;
  • 조리라 (강릉대학교 구강과학연구소) ;
  • 정경호 (수원대학교 공과대학 고분자.화학공학부) ;
  • 김경남 (연세대학교 치과대학 치과재료학연구소)
  • Shim, Hye-Won (Research Institute of Oral Science, College of Dentistry, Kangnung National University) ;
  • Yi, Yang-Jin (Research Institute of Oral Science, College of Dentistry, Kangnung National University) ;
  • Cho, Lee-Ra (Research Institute of Oral Science, College of Dentistry, Kangnung National University) ;
  • Chung, Kyung-Ho (Dept. of Polymer Engineering, University of Suwon) ;
  • Kim, Kyoung-Nam (Research Institute of Dental Materials, College of Dentistry, Yonsei University)
  • 발행 : 2002.04.01

초록

The purpose of this study was to investigate the abrasion resistance and surface roughness of conventional dental stones and improved dental stones and newly developed dental stones. Materials included in this study were several dental stones and newly developed dental stone; 2 type III. 6 type IV (including newly developed dental stone). 1 type V Ten specimens for each material, total ninety specimens were made. Each specimen was subjected to 50 complete cycle abrasion under constant load 0.42N at speed or 6mm per sec. The depth after abrasion test was measured for each specimen. Surface roughness before and after abrasion test was compared. The results were as follows ; 1. The resin containing die materials such as Tuff Rock and Resin Rock had superior abrasion resistance. 2. Type IV, V dental stone exhibited greater abrasion resistance than Type III dental stone. 3. The results or the surface roughness showed similar pattern with the abrasion resistance.

키워드

참고문헌

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