西南国防医药2018，Vol.28Issue(3)：218-221,4.DOI:10.3969/j.issn.1004-0188.2018.03.007
氧化锆陶瓷托槽微渗漏深度和粘接强度的体外实验研究
In-vitro experimental research on microleakage depth and bonding strength of zirconia ceramic bracket
李文艳 1何勇 2羊书勇 2李晨军1
作者信息
- 1. 646000四川泸州,西南医科大学口腔医学院
- 2. 成都军区总医院附属口腔医院
- 折叠
摘要
Abstract
Objective To assess the microleakage depth and bonding strength of zirconia ceramic bracket bonded with GC orthodontic light curing glass ionic adhesive.Methods A total of 54 in-vitro premolars were randomly divided into three groups,i.e.the zirconia group,the aluminum oxide group and the metal group (n=18,respectively).The GC orthodontic light curing glass ionic adhesive was applied to separately bond a zirconia ceramic bracket,an aluminum oxide ceramic bracket and a metal bracket to the experimental teeth.A stereo microscope was used to detect microleakage depth of the bonding face;a universal material tester was used to test the shear bonding strength,and a 20× amplifier was used to observe the adhesive remnant index (ARI).Results No statistical differences in microleakage depth were found among the groups (P ＞ 0.05).There was no significant difference in shear bonding strength between the zirconia ceramic bracket and the tooth face from that between the aluminum oxide ceramic bracket and the tooth face (P ＞ 0.05),but the shear bonding strength in the two cases was greater than that in the case of metal bracket (P ＜ 0.05).The shear bonding strength in each group was kept within the clinically applicable range and there was no significant difference in ARI (P ＞ 0.05).Conclusion The GC orthodontic light curing glass ionic adhesive can be used to bond zirconia ceramic brackets.There are no significant differences in microleakage depth of the bonding face from the aluminum oxide and metal brackets,but the shear bonding strength is higher than that of the metal bracket.In sum,the adhesive is clinically applicable.关键词
氧化锆/托槽/粘接剂/粘接强度/微渗漏/抗剪切Key words
zirconia/bracket/adhesive/bonding strength/microleakage/shear strength分类
医药卫生引用本文复制引用
李文艳,何勇,羊书勇,李晨军..氧化锆陶瓷托槽微渗漏深度和粘接强度的体外实验研究[J].西南国防医药,2018,28(3):218-221,4.
