北京大学学报（医学版）2017，Vol.49Issue(1)：101-104,4.DOI:10.3969/j.issn.1671-167X.2017.01.018
通用型粘接剂对双固化树脂水门汀牙本质粘接强度的影响
Curing mode of universal adhesives affects the bond strength of resin cements to dentin
摘要
Abstract
Objective:To determine the effects of curing mode of one-step and two-step universal adhesives on the micro-tensile bond strength (μTBS) of different dual-cure resin cements to dentin.Methods:One-step universal adhesive Single Bond Universal (SBU),and two-step universal adhesive OptiBond Versa (VSA) were chosen as the subjects,one-step self-etching adhesive OptiBond All in One (AIO) and two-step self-etching adhesive Clearfil SE Bond (SEB) were control groups,and two dualcure resin cements RelyX Ultimate (RLX) and Nexus 3 Universal (NX3) were used in this study.In this study,80 extracted human molars were selected and the dentin surface was exposed using diamond saw.The teeth were divided into 16 groups according to the adhesives (AIO,SBU,SEB,VSA),cure modes of adhesives (light cure,non-light cure) and resin cements (RLX,NX3).The adhesives were applied on the dentin surface following the instruction and whether light cured or not,then the resin cements were applied on the adhesives with 1 mm thickness and light cured (650 mW/cm2) for 20 s.A resin was built up (5 mm) on the cements and light cured layer by layer.After water storage for 24 h,the specimens were cut into resin-cement-dentin strips with a cross sectional area of 1 mm ± 1 mm and the μTBS was measured.Results:Regarding one-step universal adhesive (SBU) light cured,the μTBS with RLX [(35.45 ±7.04) MPa] or NX3 [(26.84 ±10.39) MPa] were higher than SBU non-light cured with RLX [(17.93 ± 8.93) MPa)] or NX3 [(10.07 ± 5.89) MPa,P ＜ 0.001].Compared with AIO,light-cured SBU combined with RLX presented higher μTBS than AIO group [(35.45 ± 7.04) MPa vs.(24.86 ±8.42) MPa,P＜0.05].When SBU was not lighted,the μTBS was lower than AIO [(17.93 ± 8.93) MPa vs.(22.28 ± 7.57) MPa,P ＜ 0.05].For two-step universal adhesive (VSA) and control adhesive (SEB),curing mode did not affect the μTBS when used with either RLX or NX3 (25.98-32.24 MPa,P ＞ 0.05).Conclusion:Curing mode of one-step universal adhesive may affect the μTBS between dual-cure resin cements and dentin,while for two-step universal adhesive,the curing mode and the type of resin cements did not influence the μTBS.关键词
黏着剂/树脂黏固剂/牙本质黏结剂/牙应力分析Key words
Adhesives/Resin cements/Dentin-bonding agents/Dental stress analysis分类
医药卫生引用本文复制引用
傅昭然,田福聪,张路,韩冰,王晓燕..通用型粘接剂对双固化树脂水门汀牙本质粘接强度的影响[J].北京大学学报（医学版）,2017,49(1):101-104,4.基金项目
国家自然科学基金(81400562)资助 Supported by the National Natural Science Foundation of China(81400562) （81400562）
