口腔疾病防治2017，Vol.25Issue(12)：779-783,5.DOI:10.12016/j.issn.2096-1456.2017.12.006
聚合瓷表面不同处理方式对其与金属托槽粘接效果的影响
Effect of different treatment methods of polymeric porcelain surface on its adhesion to metal brackets
摘要
Abstract
Objective To analyze and discuss the effect of 4 different surface treatment methods on the bonding effect between polymerization porcelain and metal brackets.Methods 45 polymer-ceramics specimens were made and 40 of them were selected and randomly divided into 5 groups according to different surface treatment methods.A group:surface without special treatment.B group:9.6％ hydrofluoric acid gel combine with bonding agent,C group:9.6％ hydrofluoric acid gel combine with silane,D group:35 ％ phosphoric acid gel combine with bonding agent,E group:35 ％ phosphoric acid gel combine with silane.All specimens were stored in water for 24 hours at 37 ℃ after bonding 10 min utes and then cycled 500 cycles (5 ℃ to 55 ℃).To measure the shear bonding strength and record the damage cases and the adhesive remnant index.Results The shear strength values were:3.24 in the control group,7.24 MPa in the hydrofluoric acid etching treatment group.10.78 MPa in the hydrofluoric acid gel combined with silane group.4.17 MPa in the phosphoric acid-only group,6.84 MPa in the phosphoric acid gel combined with silane group.The results of each group were statistically different from those of the other four groups (P ＜ 0.001).The rate of breakage after the removal of brackets of the hydrofluoric acid gel combined with silane group is higher than the others.Conclusion As to the high shear bonding strength and low rate of breakage after the removal of brackets,we recommend 35％ phosphoric acid etching combining with silane coupling agent in clinical.关键词
聚合瓷/正畸/金属托槽/表面处理/抗剪切强度Key words
Polymeric porcelain/Orthodontic/Metal brackets/Surface treatment/Shear strength分类
医药卫生引用本文复制引用
姬莉,朱志农,连文伟,李东方..聚合瓷表面不同处理方式对其与金属托槽粘接效果的影响[J].口腔疾病防治,2017,25(12):779-783,5.基金项目
江西省自然科学基金资助项目(20161BAB205231) （20161BAB205231）
