不同处理剂对氧化锆与正畸托槽间黏结强度的影响  

The influence of different treating agents on the shear bond strength between zirconia and orthodontic brackets

作　　者：董俊超 温黎明 李任 李金源 

机构地区：[1]华北理工大学口腔医学院,河北唐山063000

出　　处：《上海口腔医学》2016年第2期177-180,共4页Shanghai Journal of Stomatology

摘　　要：目的 :比较不同表面处理剂对氧化锆修复体表面与正畸托槽间黏结强度的影响。方法 :将50个氧化锆陶瓷试件随机分为5组(n=10),进行喷砂和磷酸处理,A组为对照组;B组以硅烷偶联剂处理;C组以硅烷偶联剂+SE Bond处理;D组以Z-Prime^(TM) Plus氧化锆处理剂处理;E组以Z-Prime^(TM) Plus+SE Bond处理。所有试件均用3M Transbond光固化树脂黏结剂与右上中切牙的托槽黏结,经24 h、37℃恒水浴后,进行抗剪切强度测试;去除托槽后,对氧化锆表面黏结剂残留指数进行统计。其中,每组1个氧化锆表面处理后用扫描电镜观察其表面形态变化,并对氧化锆及处理剂进行红外光谱分析。采用SPSS17.0软件包对数据进行统计学分析。结果:各组的抗剪切强度分别为A组(3.12±0.84)MPa、B组(1.92±0.83)MPa、C组(5.26±0.80)MPa、D组(6.54±0.98)MPa和E组(9.47±2.11)MPa,各组间差异均具有显著性(P<0.05)。A组和B组残留指数最低,E组最高。D组和E组达到了有效的黏结强度。结论:单独使用氧化锆处理剂能获得有效的黏结强度,但是略偏低。建议Z-Prime^(TM) Plus+SE Bond处理联合使用,以达到正畸临床所需的较高的黏结强度。PURPOSE： To compare the effect of different treating agents on the shear bond strength（SBS） between zirconia and orthodontic brackets. METHODS： Fifty zirconia specimens were randomly divided into 5 groups（n=10）, and treated with sandblasted and 37% phosphoric acid.Group A was control sample without any treatment; Group B was treated with silane coupling agent; Group C was treated with silane coupling agent and SE Bond; Group D were treated with Z-Prime^（TM） Plus; Group E were treated with Z-Prime^（TM）Plus＋SE Bond. The upper incisor brackets were bonded to each specimen using3 M Transbond light-cured resin adhesive. Each specimen was put into 37℃ water, and SBS tests were performed after 24 hours. Then statistical analysis was carried out regarding to the adhesive residual index（ARI） of the zirconia oxide surface after removing the brackets. The surface of zirconia in each group was scanned with scanning electron microscope after surface treatment, and the surface morphology changes were observed, infrared spectra analysis was conducted on zirconia and treating agents. SPSS 17.0 software package was utilized for statistical analysis. RESULTS： The mean SBS in each group was as follows： group A（3.12±0.84） MPa; group B（1.92±0.83） MPa; group C（5.26±0.80） MPa; group D（6.54±0.98） MPa;group E（9.47±2.11） MPa. Significant difference existed between each group（P0.05）, group A and B had lower ARI, while ARI in group E was highest. Group D and E achieved effective bond strength. CONCLUSIONS： Using Z-Prime^（TM）Plus can achieve effective bond strength, which is lower than Z-Prime^（TM）Plus combined with SE Bond. It＇s suggested to use Z-Prime^（TM） Plus combined with SE Bond to achieve higher SBS for orthodontic treatment.

关 键 词：氧化锆 氧化锆处理剂 抗剪切强度 黏结剂残留指数 

分 类 号：R783.5[医药卫生—口腔医学]