Abstract: Abstract：Objective To compare different orthodontic adhesives on shear bonding strength between brackets and light-cured composite resin and to provide a reference for clinical applications. Methods Ten self-curing resin cuboid specimens were made in Department of Orthodontics，School of Stomatology，China Medical University in March，2012. The 4 surfaces of specimens were filled with light-cured composite resin. A total of 40 resin surfaces were randomly divided into groups A，B，C，D with 10 surfaces in each group. Orthodontic brackets in the four groups were bonded by Jingjin enamel adhesive，3M UniteTM chemic-cured adhesives，3M TransbondTM light-cured adhesives and light-cured composite resin，respectively. The shear bonding strength of all specimens were tested and the adhensive remnant index （ARI）was measured. Results Shear bonding strength of 4 groups was（7.763 ± 1.240）MPa（group A），（8.231 ± 0.338）MPa（group B），（8.654 ± 0.916）MPa（group C），and（8.349 ± 0.820）MPa（group D），respectively. The shear strength of four kinds of adhesive all met the clinical requirements. In group C and group A，the shear strength differences were statistically significant（P < 0.05）. ARI difference did not have statistical significance in all groups（P > 0.05）. Conclusion Four kinds of adhesives all meet clinical requirements while adhering brackets to polished rough surface of light-cured resin. The shear bonding strength of 3M TransbondTM light-cured adhesive is best.

Key words: light-cured composite resin, adhesive, shear bonding strength

摘要： 目的 评价不同黏结剂用于光固化复合树脂充填体表面托槽黏结的效果。方法 2012年3月于中国医科大学口腔医学院正畸科制作10个自凝树脂长方体试件，在其4个表面制备窝洞并行光固化复合树脂充填。将40个树脂充填体随机分为A、B、C、D组（每组10个），分别用京津釉质黏结剂、3M UniteTM化学固化黏结剂、3M TransbondTM光固化黏结剂和可乐丽菲露AP-X光固化复合树脂黏结金属托槽，进行抗剪切强度测试，并测评光固化树脂面黏结剂残留指数（ARI积分）。结果 4种黏结剂的抗剪切强度分别为：A组（7.763 ± 1.240）MPa；B组（8.231 ± 0.338）MPa；C组（8.654 ± 0.916）MPa；D组（8.349 ± 0. 820）MPa。4种黏结剂的抗剪切强度均达到临床要求，其中C组与A组的抗剪切强度差异有统计学意义（P < 0.05），其余各组间的抗剪切强度差异无统计学意义（P > 0.05）。各组的ARI积分差异无统计学意义（P > 0.05）。结论 在经过打磨粗糙表面处理后的光固化复合树脂表面黏结托槽时，4种黏结剂均能满足临床要求。其中3M TransbondTM光固化黏结剂产生的抗剪切强度最大。

关键词: 光固化复合树脂, 黏结剂, 抗剪切强度