지르코니아 표면 가공에 따른 상변이
Phase transition of Zirconia by surface treatments
이정수, 심정석, 정형호,
소속 상세정보
이정수 ( Lee Jung-Soo ) - TEM치과기공소
심정석 ( Shim Jeong-Seok ) - 경희의료원 치과병원 치과기공실
정형호 ( Jung Hyung-Ho ) - (주)에큐세라부설연구소
KMID : 0362120100320020057
Abstract
Purpose : This study aimed to find out the effects of treatments on the surface of Zirconia.
Methods : To this end, we selected six treatments that have been used widely: steam cleaning, 2bar & 6bar sand blasting, grinding by green stone point, grinding by diamond bur, and grinding by diamond bur with water spray.
Results : The results of our study showed that monoclinic rate increased from all six treatments. Monoclinic rate varied by treatments, ranged from 0.6% (steam cleaning) to 6.5% (6bar sand blasting). These values from all six treatments were below ISO 13356 standard, which is 25%. Also, we found that two treatments (green stone point and diamond bur) increased roughness of surface of Zirconia.
Conclusion : This study concluded that phase changes of Zirconia were not significant by using six treatments we employed.
키워드
Grinding; Sand Blasting; Steam Cleaning; Surface treatment; Zirconia
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