수종 치과용 석고의 마모저항도 및 표면조도에 관한 비교 연구
A Study on the Abrasion Resistance and Surface Roughness of the Dental Stones
심혜원, 이양진, 조리라, 정경호, 김경남,
소속 상세정보
심혜원 ( Shim Hye-Won ) - 강릉대학교 치과대학 구강과학연구소
이양진 ( Yi Yang-Jin ) - 강릉대학교 치과대학 구강과학연구소
조리라 ( Cho Lee-Ra ) - 강릉대학교 치과대학 구강과학연구소
정경호 ( Chung Kyung-Ho ) - 수원대학교 화학공학과
김경남 ( Kim Kyoung-Nam ) - 연세대학교 치과대학 치과재료학교실
KMID : 0362420020400020184
Abstract
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 of 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 Surface roughnessdental stone exhibited greater abrasion resistance than Type IIIdental stone.3.The results of the surface roughness showed similar pattern with the abrasion resistance.
키워드
Abrasion resistance; Dental stone; Surface roughness
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