临床口腔医学杂志2016，Vol.32Issue(7)：403-406,4.DOI:10.3969/j.issn.1003-1634.2016.07.006
口腔正畸托槽粘接力学性能测试标本制作方法的改进
The modified method of orthodontic bracket samples for bond strengthen tests
刘心 1祝媛 2吴佩 2刘洋 2余美芳2
作者信息
- 1. 华中科技大学同济医学院附属同济医院 湖北 武汉 430030
- 2. 武汉市第五医院 湖北 武汉 430050
- 折叠
摘要
Abstract
Objective: The purpose of this study was to compare the effects of different methods of making orthodontic bracket samples on bond strengthen tests in vitro. Method: The test samples were randomly divided into two groups. The test samples were made by one part-form in the conventional method group,while in the modified method group, the test samples were made by two part-form. The effects of different methods of making orthodontic br-acket samples on bond strengthen tests were compared. The consumption of composition, operating time, labour intens-ity was also evaluated and analyzed. Result:In the shear bond strengthen test, the resin consumption of molar specime-ns was 3.396 ± 0.08 g in conventional method group, of premolars was 3.035 ± 0.07 g. While by modified method, the resin consumption of molar specimens was 1.286 ± 0.04 g, of premolars was 1.252 ± 0.04 g. In the tensile bond strength-en test, the resin consumption of molar specimens was 2.856 ± 0.07 g prepared by conventional method, of premolars was 2.500 ± 0.02 g. While by modified method, the resin consumption of molar specimens was 1.399 ± 0.03 g, of premolars was 1.481 ± 0.06 g. In conventional method group time-consuming was 28.53 ± 1.76 s, while by modified method, time-consuming was 4.76 ± 0.843 s. There were statistically significant difference between this two groups according to all of the above results(P<0.001), respectively. Conlusion:The modified method can save the consumption of composition, operating time and labour intensity.关键词
口腔正畸/粘接实验/力学实验/剪切实验/拉伸实验Key words
Orthodontics/Bonding test/Mechanics test/Shearing test/Tensile test分类
医药卫生引用本文复制引用
刘心,祝媛,吴佩,刘洋,余美芳..口腔正畸托槽粘接力学性能测试标本制作方法的改进[J].临床口腔医学杂志,2016,32(7):403-406,4.
