Ni-Cr합금과 도재간의 결합력에 gold-based bonding agent가 미치는 영향
The effect of the gold based bonding agents on the bond between Ni-Cr alloys and ceramic restorations
이정환, 주규지,
소속 상세정보
이정환 ( Lee Jung-Hwan ) - 광주보건대학교 치기공과
주규지 ( Joo Kyu-Ji ) - 광주보건대학교 치기공과
KMID : 0362120070290020213
Abstract
The success of a porcelain fused to metal (PFM) restoration depends upon the quality of the porcelain-metal bond. The adhesion between metal substructure and dental porcelain is related to the diffusion of oxygen to the reaction layer formed on cast-metal surface during firing.
The purposed of this investigation was to study the effects of gold based bonding agent on Ni-Cr alloy-ceramic adhesion between porcelain matrix, gold based bonding agent and metal substructure interface. gold based bonding agent have been applied as an intermediate layer between a metal substructure and a ceramic coating. gold based bonding agent(Aurofilm NP, Metalor, Swiss) was applied on Ni-Cr alloy surface by four method. Surfaces only air abraded with 110ß≠ Al2O3 particles were used as control. metal ceramic adhesion was evaluated by a biaxial flexure test(N=5) and volume fraction of adherent porcelain was determined by SEM/EDS analysis. Result of this study suggest that the layering sequence of gold based bonding agent is very important and can improve porcelain adherence to PFM.
키워드
Gold based bonding agent; PFM; porcelain
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