Effect of additional etching and ethanol-wet bonding on the dentin bond strength of one-step self-etch adhesives
Ahn Joong-Hee, 정경화, 손성애, 권용훈, 박정길,
소속 상세정보
( Ahn Joong-Hee ) - Pusan National University School of Dentistry Department of Conservative Dentistry
정경화 ( Jung Kyoung-Hwa ) - Pusan National University School of Dentistry Department of Conservative Dentistry
손성애 ( Son Sung-Ae ) - Pusan National University School of Dentistry Department of Conservative Dentistry
권용훈 ( Kwon Yong-Hoon ) - Pusan National University School of Dentistry Department of Dental Materials
박정길 ( Park Jeong-Kil ) - Pusan National University School of Dentistry Department of Conservative Dentistry
KMID : 1034420150400010068
Abstract
Objectives: This study examined the effects of additional acid etching on the dentin bond strength of one-step self-etch adhesives with different compositions and pH. The effect of ethanol wetting on etched dentin bond strength of self-etch adhesives was also evaluated.
Materials and Methods: Forty-two human permanent molars were classified into 21 groups according to the adhesive types (Clearfil SE Bond [SE, control]; G-aenial Bond [GB]; Xeno V [XV]; Beauti Bond [BB]; Adper Easy Bond [AE]; Single Bond Universal [SU]; All Bond Universal [AU]), and the dentin conditioning methods. Composite resins were placed on the dentin surfaces, and the teeth were sectioned. The microtensile bond strength was measured, and the failure mode of the fractured specimens was examined. The data were analyzed statistically using two-way ANOVA and Duncan's post hoc test.
Results: In GB, XV and SE (pH ≤ 2), the bond strength was decreased significantly when the dentin was etched (p < 0.05). In BB, AE and SU (pH 2.4 - 2.7), additional etching did not affect the bond strength (p > 0.05). In AU (pH = 3.2), additional etching increased the bond strength significantly (p < 0.05). When adhesives were applied to the acid etched dentin with ethanol-wet bonding, the bond strength was significantly higher than that of the no ethanol-wet bonding groups, and the incidence of cohesive failure was increased.
Conclusions: The effect of additional acid etching on the dentin bond strength was influenced by the pH of one-step self-etch adhesives. Ethanol wetting on etched dentin could create a stronger bonding performance of one-step self-etch adhesives for acid etched dentin.
키워드
Ethanol-wet bonding; One-step self-etch adhesive; pH of adhesives
원문 및 링크아웃 정보
등재저널 정보