Evaluation and comparision of the shear bond strength of rebonded orthodontic brackets with air abrasion, flaming, and grinding techniques: an in vitro study.

Orthodontics : the art and practice of dentofacial enhancement Pub Date : 2012-01-01

Hemant Kumar Halwai, Ranjit Haridas Kamble, Pushpa Vinay Hazarey, Vanita Gautam

{"title":"Evaluation and comparision of the shear bond strength of rebonded orthodontic brackets with air abrasion, flaming, and grinding techniques: an in vitro study.","authors":"Hemant Kumar Halwai, Ranjit Haridas Kamble, Pushpa Vinay Hazarey, Vanita Gautam","doi":"","DOIUrl":null,"url":null,"abstract":"Aim: To evaluate and compare in vitro the shear bond strength of rebonded orthodontic brackets among the three most frequently used rebonding methods--sandblasting, direct flaming, and grinding with a green stone bur. The surface characteristics of new and rebonded bracket bases were also compared using scanning electron microscopy (SEM).Methods: The sample used in the present study comprised 60 extracted human premolars bonded with brackets. The sample was divided into three groups (each n = 20; sandblasting, direct flaming, and grinding with a green stone bur). SEM was used to compare the surface characteristics of the new and rebonded bracket bases for all three groups.Results: The Z test for the direct flaming and grinding groups revealed statistically significant bond strength (P < .05). The ANOVA test for all three groups showed P < .05, which is statistically significant. SEM for the sandblasting method showed well-defined retentive areas.Conclusion: When rebonding brackets, sandblasting the bracket base yields the highest bond strength.","PeriodicalId":89450,"journal":{"name":"Orthodontics : the art and practice of dentofacial enhancement","volume":"13 1","pages":"e1-9"},"PeriodicalIF":0.0000,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Orthodontics : the art and practice of dentofacial enhancement","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

Aim: To evaluate and compare in vitro the shear bond strength of rebonded orthodontic brackets among the three most frequently used rebonding methods--sandblasting, direct flaming, and grinding with a green stone bur. The surface characteristics of new and rebonded bracket bases were also compared using scanning electron microscopy (SEM).

Methods: The sample used in the present study comprised 60 extracted human premolars bonded with brackets. The sample was divided into three groups (each n = 20; sandblasting, direct flaming, and grinding with a green stone bur). SEM was used to compare the surface characteristics of the new and rebonded bracket bases for all three groups.

Results: The Z test for the direct flaming and grinding groups revealed statistically significant bond strength (P < .05). The ANOVA test for all three groups showed P < .05, which is statistically significant. SEM for the sandblasting method showed well-defined retentive areas.

Conclusion: When rebonding brackets, sandblasting the bracket base yields the highest bond strength.

本刊更多论文

空气磨损、燃烧和研磨技术对再粘合正畸托槽剪切强度的评价和比较:一项体外研究。

目的:评价和比较三种常用的再粘接方法——喷砂、直接燃烧和绿石刀研磨对再粘接正畸托槽抗剪强度的影响。用扫描电镜(SEM)比较了新支架和再粘合支架的表面特征。方法:以60颗拔除的人前磨牙与托槽结合为研究对象。将样本分为三组(每组n = 20;喷砂，直接燃烧，用绿色石棒研磨)。用扫描电镜比较了三组新支架和再粘合支架的表面特征。结果:直接燃烧组和研磨组的Z检验显示，结合强度有统计学意义(P < 0.05)。三组的方差分析均显示P < 0.05，差异有统计学意义。喷砂方法的扫描电镜显示出明确的保留区域。结论:在重新粘接托架时，喷砂托架基部的粘接强度最高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Orthodontics : the art and practice of dentofacial enhancement

自引率

0.00%

发文量