표면 변화에 따른 주조용 티타늄 합금과 도재와의 결합강도 변화에 관한 연구
A Study of Porcelain Bond Strength to Cast Ti Alloy with respect to Change of Surface Characteristic
정인성, 최성민,
소속 상세정보
정인성 ( Chung In-Sung ) - 부산가톨릭대학교 보건과학대학 치기공학과
최성민 ( Choi Sung-Min ) - 부산가톨릭대학교 보건과학대학 치기공학과
KMID : 0362120080300010065
Abstract
The use of titanium in the field of dentistry has increased, due to their excellent biocompatibility, appropriate mechanical properties, corrosion-resistance and low price. However, many difficulties with the use of titanium for metal-ceramic crowns remain to be solved. The objective of this study was to evaluate the influence of surface modifications on the bonding characteristics of specific titanium porcelain bonded to cast titanium. The surfaces of Titanium were prepared with 4 test groups, i) sandblasted with particles of different size, ii) sandblasted after treated oxidization and oxidized after sandblast. We observed the bond strength and node aspect of titanium and ceramic, and respect to the methods of modifying surface of titanium by the test of mean roughness of surface, Scanning Electron Microscope, and 3-point flexural bend test. The results show that, 1. The specimens, which treated oxidization after process of sandblast with particles of 50um size, were the better for the bond strength in comparison with other specimen. 2. The specimen with process of sandblasting after oxidization treatment were the better for stability of the bond strength. 3. The wettability of titanium surface affect the bond strength.
키워드
Cast Ti alloy;3-point flexural bend test;Bond strength;Sandblasting
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