新型氟化物K_2TiF_6对牙釉质黏合树脂材料黏结性能的影响  

Effect of K_2TiF_6 on adhesion property of dental enamel bonding resin

作　　者：刘梅天[1] 张金婷[1] 刘斌[2] 车小强[2] 冯致远[2] 冉海群[2] 

机构地区：[1]西北民族大学口腔国家民委重点实验室,甘肃省兰州市730030 [2]兰州大学口腔医学院,甘肃省兰州市730000

出　　处：《中国组织工程研究》2012年第34期6335-6338,共4页Chinese Journal of Tissue Engineering Research

摘　　要：背景:口腔正畸治疗过程中,釉质脱矿发生率较高,氟化物的应用可以抑制釉质脱矿的发生并促进釉质再矿化。目的:观察不同含量K2TiF6对釉质黏接树脂黏接性能的影响。方法:正畸拔除的上颌第一前磨牙80颗,随机分为5组,分别用质量分数为5%,10%,15%,20%K2TiF6的釉质黏结树脂黏结托槽,不含K2TiF6的釉质黏接剂作为对照组。结果与结论:质量分数20%K2TiF6组托槽抗剪切黏结强度及黏结材料残留指数与对照组相比均降低(P<0.05);其余3组与对照组相比,差异均无显著性意义(P>0.05)。提示K2TiF6在釉质黏结树脂中的质量分数不超过15%时不影响托槽的剪切结合强度。BACKGROUND：Enamel demineralization happened easily in the process of orthodontic treatment.Fluoride application can inhibit the incidence of demineralization and promote enamel remineralization.OBJECTIVE：To observe the effects of different concentrations of K2TiF6 on the adhesion property of dental enamel bonding resin.METHODS：First premolars 80 teeth with orthodontic extraction from maxillary were randomly divided into five groups.Enamel with no K2TiF6 was as control group,and in the other four groups,enamel bonding resin containing 5%,10%,15%,20% K2TiF6 was bonded edgewise brackets respectively.RESULTS AND CONCLUSION：The result showed that shear bond strength and bond material adhesive remnant index of brackets in 20% K2TiF6 group were both decreased compared with the control group（P 〈 0.05）,but there were no significant differences between the other three different concentration groups and the control group（P 〈 0.05）.It suggests that when the K2TiF6 concentration in dental enamel bonding resin is no more than 15%,K2TiF6 does not affect the shear bond strength of brackets.

关 键 词：K2TiF6 抗剪黏结强度 釉质黏合树脂 残留指数 黏结材料 

分 类 号：R318[医药卫生—生物医学工程]