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상용 치과 법랑질 도재의 광학적 및 기계적 특성

원문정보

Optical and Mechanical Properties of Commercial Dental Enamel Porcelain

박형랑

피인용수 : 0(자료제공 : 네이버학술정보)

초록

영어

In this study, optical and mechanical properties were investigated with 4 kinds of commercialdental enamels. As a result of EDS analysis SiO2, Na2O, Al2O3and K2O were the main components of commercialdental enamels. In case of H specimen, content of SiO2and K2O were more than that of anotherspecimens. Starting powder and fired specimens were glass ceramics which were consist ofamorphous phase and leucite (crystalline) phase. Crystallization did not occurred during firingprocess, since the XRD peak intensity was similar between starting powder and fired specimens.As a result of differential thermal analysis, Tgand crystalline temperature was varied withcomposition in the range of 548~576and 735~780respectively. 0.5thickness dental enamelspecimens showed sufficient translucent properties. However, transmittance and reflectance werelower than 5% result from scattering due to the refractive index difference between glass andcrystalline phase. 3 point bending strength was in the range of 73.9~101.8MPa which was similaror slightly higher than enamel of natural teeth and Vickers hardness was higher than enamel ofnatural teeth more than 100.

목차

Abstract
 Ⅰ. 서론
 Ⅱ. 연구방법 및 재료
  1. 시편준비
  2. 측정 및 방법
 Ⅲ. 연구결과 및 고찰
  1. 치과용 법랑질도재의 조성 및 상분석
  2. 치과용 법랑질도재의 열적 특성 분석
  3. 치과용 법랑질도재의 광학적 특성 분석
  4. 치과용 법랑질도재의 기계적 특성 분석
  5. 치과용법랑질도재의미세구조
 Ⅳ. 결론
 참고문헌

저자정보

  • 박형랑 Hyung-Rang Park. 혜전대학 치기공과 겸임교수

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자료제공 : 네이버학술정보

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