자가 접착 레진 시멘트의 전단결합강도, 굴곡강도, 물 흡수도 및 용해도
Shear bond strength, flexural strength, water sorption and solubility of self-adhesive resin cement
김아진, 유상희, 오승한, 배지명,
소속 상세정보
김아진 ( Kim Ah-Jin ) - 원광대학교 치과대학 치과생체재료학교실
유상희 ( Yu Sang-Hui ) - 원광대학교 치과대학 치과생체재료학교실
오승한 ( Oh Seung-Han ) - 원광대학교 치과대학 치과생체재료학교실
배지명 ( Bae Ji-Myung ) - 원광대학교 치과대학 치과생체재료학교실
KMID : 0362220130400010057
Abstract
The use of self-adhesive resin cement is being increased due to its convenience. The purpose of this study was to compare the shear bond strength, flexural strength, water sorption and solubility of various self-adhesive resin cements. Self-adhesive resin cement used in the experiment was Bifix SE(Bifix), Bis Cem(Bis), ICem(ICem), MonoCem(Mono) and SmartCem(Smart). In order to measure the shear bond strength, bovine teeth was embedded in acrylic resin and ground until superficial dentin was exposed. Blocks using composite resin were produced(2.3 mm in diameter × 2.2 mm in height) and they were applied on bovine teeth with resin cement according to the manufacture’s instructions. Adhered sample were kept in 37℃ distilled water for 24 hours before experiment was done, the shear bond strength was measured by using a universal testing machine(Z020, Zwick, Ulm, Germany) with cross-head speed of 0.75 mm/min. Specimens for the flexural strength was tested with the same cross-head speed. Then, water sorption and solubility were measured. The shear bond strength of self-adhesive resin cement were no significantly differences(p>0.05). In flexural strength, the Bifix SE(Bifix) was significantly higher than other groups, then there was SmartCem(Smart)(p<0.05). In water sorption, the SmartCem(Smart) was significantly lower than other groups, then there was Bifix SE (Bifix)(p<0.05). BisCem(Bis) was significantly higher than other groups(p<0.05), and the MonoCem(Mono) was not significant difference (p>0.05). In solubility, the Bifix SE(Bifix) was lowest rate(p<0.05), and Smart Cem(Smart) and BisCem (Bis) were no significant differences(p>0.05). In this study, Smart Cem(Smart) and Bifix SE(Bifix) high flexural strength, low water sorption and solubility, so is a clinically favorable self-adhesive resin cement.
키워드
Self-adhesive resin cemen; Shear bond strength; Flexural strength; Water sorption; Solubility
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