中国组织工程研究Issue(38)：6087-6091,5.DOI:10.3969/j.issn.2095-4344.2015.38.004
两种不同处理方法对牙釉质结构及正畸托槽粘接强度的影响
Effects of two different treatments on enamel structure and bond strength of orthodontic brackets
高杨 1张明 1宫春梅2
作者信息
- 1. 青岛市口腔医院，山东省青岛市 266001
- 2. 潍坊医学院口腔医学院，山东省潍坊市 261053
- 折叠
摘要
Abstract
BACKGROUND:There are two ways to treat the enamel before bracket bonding: etching and sandblasting, but the few studies focus on the direct use of sandblasting technology on untreated enamel surface. <br> OBJECTIVE:To observe the damage of etchingversus sandblasting to the enamel surface, and to compare the bonding strength of metal brackets adhesive to isolated teeth with these two kinds of surface treatments. <br> METHODS:(1) Nine premolar teeth removed for orthodontic treatment were randomized into three groups: sandblasting, acid etching and polishing treatment groups. Surface roughening effects of these three kinds of treatments were observed under scanning electron microscope. (1) Another 40 premolar teeth removed for orthodontic treatment were randomized into two groups: sandblasting and acid etching groups. At 24 hours after bracket bonding, the shear strength was detected using mechanical testing machine, and the adhesive residue index of tooth surface was statisticaly calculated. <br> RESULTS AND CONCLUSION: (1) Under the scanning electron microscope, polishing treatment had no damage to the enamel surface; but in the other two groups, the enamel surface was damaged to varying degrees, especialy in the sandblasting group. (2) The bonding strength in the sandblasting group was significantly higher than that in the acid etching group (P < 0.05), but there was no difference in the adhesive residue index of tooth surface between the two groups (P > 0.05). These findings indicate that compared with the acid etching technology, the sandblasting technology can increase the bonding strength between the enamel and metal bracket, but it also results in more damage.关键词
生物材料/口腔生物材料/喷砂/酸蚀/扫描电镜/粘接强度/表面处理分类
医药卫生引用本文复制引用
高杨,张明,宫春梅..两种不同处理方法对牙釉质结构及正畸托槽粘接强度的影响[J].中国组织工程研究,2015,(38):6087-6091,5.
