화학처리가 지르코니아와 비니어 세라믹의 결합강도에 미치는 영향
Effect of Chemical Treatment on the Bond Strength Between Zirconia and Veneer Ceramics
정수하, 배지명, 오승한,
소속 상세정보
정수하 ( Jeoung Su-Ha ) - 충북보건과학대학교 치기공과
배지명 ( Bae Ji-Myung ) - 원광대학교 치과대학 치과생체재료학교실 및 생체재료 매식연구소
오승한 ( Oh Seung-Han ) - 원광대학교 치과대학 치과생체재료학교실 및 생체재료 매식연구소
KMID : 0362220120390040269
Abstract
The purpose of this study the chemical processing time of zirconia evaluate the influence on the surface, and on the bond strength of zirconia ceramic veneers was to examine the impact. Bonding strength was measured by Schwickerath initial crack test described in ISO 9693:2009. Zirconia specimens (25 mm X 3 mm X 0.5 mm) were prepared by cutting zirconia block (Cerasys-Zr, Cerasys Inc., USA). The specimens sintered acid (10 % HF) and base(1Mol NaOH) was performed according to the time. Zirconia of chemical treated were measured using a universal testing machine (UTM), contact angle meter, scanning electron microscopy (SEM). the data was analyzed by one-way ANOVA and the Scheffe’s multiple range test. NaOH treated zirconia showed significant difference in surface energy(P<0.05), but there was no significant difference in bond strength(P>0.05). HF treated zirconia showed increased significantly in surface energy(P<0.05), its bond strength was significantly decreased(P<0.05).
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