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目的:比较3种自酸蚀粘结剂与3种树脂对牙齿Ⅴ类洞的微渗漏的影响.方法:在45颗新鲜拔除的第三磨牙的颊舌侧颈部制备箱状(3 mm×2 mm×2 mm)Ⅴ类洞.按随机数字法分为9组,每组有5颗牙齿,10个洞.有如下组合:A+D组(Easy one+Z350)、A+E组(Easy one+AP-X)、A+F组(Easy one+ TPH)、B+D组(S3+Z350)、B+E组(S3+AP-X)、B+F组(S3+TPH)、C+D组(XV+Z350)、C+E组(XV+AP-X)、C+F组(XV+TPH).按各粘结剂与复合树脂说明书方法,对每组洞进行相应的粘结剂和树脂充填.将牙放在37℃恒温水浴箱24 h后,室温下浸泡于1％的亚甲基蓝24 h,然后用金刚砂片将牙齿颊舌向切开为两半,在体式显微镜下观察微漏程度.结果:粘结剂S3 bond与不同树脂配伍使用时,其微渗漏存在显著性差异(P＜0.05);粘结剂Easy one、XenoⅤ与不同树脂配伍使用时,其微渗漏不存在显著性差异;树脂Z350、可乐丽菲露AP-X与不同粘结剂配伍使用时,其结果存在显著性差异(P＜0.05);树脂TPH与不同粘结剂使用时,其结果不存在显著性差异.结论:微渗漏的发生是粘结剂与树脂共同作用的结果.在临床用粘结剂与复合树脂修复Ⅴ类洞时,应考虑其配伍性.“,”Objective:To compare the effects of three kinds of self-etching adhesives and three kinds of resins on the microleakage of Class Ⅴ restorations.Methods:Box-shaped class Ⅴ cavities (3mm× 2mm× 2mm) were prepared at the neck of buccal and lingual surfaces of 45 freshly extracted third molars.The teeth were divided into 9 groups randomly.There were 5 teeth in each group with 10 cavities.The cavities in each group were restored by different combinations of adhesives and resins.After restored in the constant temperature water of 37℃ for 24 hours,the specimens were soaked in 1％ methylene blue solution at room temperature for 24 hours.The specimens were cut buccolingually into two halves with carborundum disc,and the microleakage degree was observed under the stereomicroscope.Results:When matched with S3 bond adhesive,the microleakage of the specimens with different resins was significantly different (P＜0.05).When matched with Easy one adhesive and Xeno V adhesive,there was no significant difference in the groups restored by different resins.When restored by Z350 resin and Clearfil AP -X Composite resins,the microleakage was significantly different with different adhesives (P＜0.05).When TPH resin was matched with different adhesives,there was no significant difference.Conclusion:The occurrence of microleakage was the result of the interaction between the adhesive and the resin.When Class Ⅴ cavities were restored clinically,the compatibility of the adhesives and composite resins should be taken into consideration.