다용도 프라이머로 전처리한 지르코니아에 대한 자가접착 레진 시멘트의 미세 전단 결합 강도
Microshear Bond strength of Self-adhesive Resin Cement to Universal primer-treated Zirconia
이임결, 이두형, 권태엽, 진명욱, 이규복,
소속 상세정보
이임결 ( Lee Lin-Jie ) - 경북대학교 치의학전문대학원 치과보철학교실
이두형 ( Lee Du-Hyeong ) - 경북대학교 치의학전문대학원 치과보철학교실
권태엽 ( Kwon Tae-Yub ) - 경북대학교 치의학전문대학원 치과생체재료학교실
진명욱 ( Jin Myoung-Uk ) - 경북대학교 치의학전문대학원 치과보존학교실
이규복 ( Lee Kyu-Bok ) - 경북대학교 치의학전문대학원 치과보철학교실
KMID : 0362220130400020137
Abstract
The objective of the study was to evaluate conventional and self-adhesive resin cements bonding to zirconia ceramic that were sandblasted and primed with universal primer. 8 sintered zirconia ceramic disks (Ceramill Zolid; Amann Girrbach, Austria) were air-abraded with 110 ㎛ Al₂O₃ at 2.5 bar pressure for 15s at a distance of 10 ㎜ and ultrasonic cleaned in 95% alcohol for 3min. All the specimens were applied by universal primer 60s and dried. The primed specimens were divided into 4 groups (n=10) according to the resin cement used: RelyX Unicem, Multilink Speed, MaxCem Elite) Panavia F2.0. The resin cement cylinders were stored in distilled water at 37℃ for 24h. Microshear bond strength (MSBS) test was measured with a universal testing machine. The means and standard deviations of microshear bond strength for RelyX Unicem, Multilink Speed, MaxCem Elite, Panavia F2.0 were 18.57 (4.80), 8.21 (4.95), 4.59 (3.14), 4.61 (2.80) MFa, respectively. Statistical analysis revealed that the MSBS of RelyX Unicem, Multilink Speed were significantly higher than MaxCem Elite, Panavia F2.0 (p＜0.05). When self-adhesive resin cement bond to zirconia, universal primer plays a role of improving the bond strength to zirconia. It is recommended to use RelyX Unicem, Multilink Speed bond to zirconia which is primed with universal primer.
키워드
Self-adhesive resin cement; zirconia; universal primer; microshear
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