中国美容医学2018，Vol.27Issue(5)：112-115,4.
两种正畸粘接剂粘接强度的体外实验研究
In-vitro Studies On Shear Bond Strength of Two Orthodontic Adhesive
摘要
Abstract
Objective To investigate the difference of bonding strength and residue of binder between two kinds of orthodontic adhesive. Methods 40 orthodontic Maxillary first premolars which needed extracting were collected and randomly divided into 2 groups, group A: light-cure resin binder group, group B: light-cure resin-reinforced glass-ionomer group. The shear strength of each bracket was measured by universal testing machine. The residual index and damage of the enamel surface were observed under microscope. Results The shear strength of group A was (12.30 ± 2.55) MPa, which was significantly higher than that of group B (9.13 ± 1.18) MPa, the difference was statistically significant(t=5.049,P=0.000). The residual rate of adhesive in group A was higher than that in group B(P=0.013). Conclusion While removing bracket, the two kinds of binder did not cause the damage of enamel surface, the shear bond strength of light-cured resin binder was higher than that of light-cure resin-reinforced glass-ionomer, but light-cured resin binder residue on the enamel surface was more after removing the brackets.关键词
正畸/金属托槽/粘接强度/粘接剂/ARIKey words
orthodontics/metal brackets/shear bond strength/adhesive/ARI分类
医药卫生引用本文复制引用
刘刚,王银龙,王元银,胡露露..两种正畸粘接剂粘接强度的体外实验研究[J].中国美容医学,2018,27(5):112-115,4.基金项目
国家自然科学基金项目(81271126),合肥市借转补项目(yw201608) （81271126）
