不同表面处理对义齿软衬树脂黏结强度的影响  

The influence of bonding strength of denture soft reline resin by different surface treatments

作　　者：孙健[1] 郎伟军[1] 李静[1] 张富强[1] 

机构地区：[1]上海交通大学医学院附属第九人民医院·口腔医学院口腔修复科,上海市口腔医学重点实验室,上海市口腔医学研究所,上海200011

出　　处：《上海口腔医学》2006年第2期149-151,共3页Shanghai Journal of Stomatology

基　　金：上海市重点学科(特色学科)建设项目(T0202)

摘　　要：目的:探讨4种不同表面处理对义齿软衬树脂与硬质树脂之间黏结强度影响。方法:制作热凝硬质基托树脂试件(直径8mm,长度15mm)和热凝义齿软衬树脂试件(厚4mm,直径10mm),然后将2个硬质树脂试件黏结在软衬树脂正反两面的中心。采用4种不同表面处理方式——第1组,对照组,不加任何处理;第2组,喷砂粗化处理;第3组,专用黏结剂涂布表层;第4组,表层涂布+喷砂粗化。每组各10个试件,分别测定黏结强度,采用SPSS10.0软件进行单因素方差分析。结果:第1、2、3、4组的平均黏结强度分别为3.518、2.834、4.077和3.852MPa。F=6.40,P<0.0014。表层涂布组的黏结强度最高,而喷砂组的黏结强度最低。结论:使用专用黏结剂表层涂布,可显著增强义齿软衬树脂的黏结强度;而进行喷砂处理,反而会使黏结强度下降。PURPOSE： This study evaluated the influence of bonding strength of heat-polymerized denture soft reline resin by 4 different surface treatments bonded to denture base resin. METHODS： Denture base resin （8mm in diameter and 15mm in length ） were fabricated from heat-polymerized acrylic resin （Densply）. And heat-polymerized denture soft reline resin disks （Physio liner ） were also made （4ram thick and 10ram diameter）. Two denture base resins were bonded to the denture reline resin disk at the centure on the two sides of the disk. All the specimen were divided into 4 groups （n= 10） with 3 different surface treatments： （1） no treatment（control）, （2）sandblasted,（3）surface liner application,（4） surface liner application＋ sandblasted.Bond strength （MPa） was measured by tension bond testing at a 12.7ram/rain speed until the soft reline resin debonded from the base resin. Data were statistically analyzed by SPSS 10.0 software package for ANOVA. RESULTS： The mean bond strengths of group 1,2,3A were 3.518, 2.834, 4.077, 3.852MPa respectively. The bonding strength of all the three groups showed significant difference （P〈0.0014）. The group with surface liner application showed significantly highest bonding strength, while the group with sandblasted showed the lowest bonding strength. CONCLUSIONS： The use of surface liner can significantly improve the bonding strength of heat-polymerized denture soft reline resin to the denture base resin , while the bonding strength decreased after using sandblasting. Supported by Shanghai Leadind Academic Discipline Project （T0202）.

关 键 词：义齿软衬树脂 表面处理 黏结强度 

分 类 号：R783.6[医药卫生—口腔医学]