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未进行牙釉质酸蚀的正畸托槽粘结强度评估。

Evaluation of bond strength of orthodontic brackets without enamel etching.

作者信息

Boruziniat Alireza, Khazaei Yegane, Motaghi Shiva, Moghaddas Mohmmadjavad

机构信息

Assistant Professor of Restorative Dentistry, Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.

Under-graduate student, Student Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.

出版信息

J Clin Exp Dent. 2015 Oct 1;7(4):e519-23. doi: 10.4317/jced.52253. eCollection 2015 Oct.

DOI:10.4317/jced.52253
PMID:26535100
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4628808/
Abstract

BACKGROUND

To compare the shear bond strength of brackets with and without enamel etching.

MATERIAL AND METHODS

In this study, 60 sound premolars were randomly divided into four different groups: 1- TXE group: Enamel etching+Transbond XT adhesive+ Transbond XT composite. 2- TXS group: Transbond plus self-etch adhesive+ Transbond XT composite. 3- PQ1E group: Enamel etching+ PQ1 adhesive+ Transbond XT composite. 4- PQ1 group: PQ1 adhesive+ Transbond XT composite. The shear bond strengths of brackets were evaluated using universal testing machine at cross head speed of 0.5 mm/min. The Adhesive Remnant Index (ARI) was also measured. One-way ANOVA, Tukey's post hoc, Kruskal-wallis and Mann-Witney U test were used for data analysis.

RESULTS

There was a significant difference between etched and unetched groups respect to SBS and ARI (p<0.05), however; no significant difference was observed between unetched group and self-etch adhesive group (p>> 0.05). The shear bond strength of PQ1 group was the least but in acceptable range and its ARI was less than other groups.

CONCLUSIONS

PQ1 adhesive can be used for bracket bonding without enamel etching with adequate bond strength and minimal ARI.

KEY WORDS

Bracket, shear bond strength, filled-adhesive, self-etch adhesive.

摘要

背景

比较经过和未经过釉质酸蚀处理的托槽的剪切粘结强度。

材料与方法

在本研究中，60颗健康前磨牙被随机分为四组：1-TXE组：釉质酸蚀+Transbond XT粘结剂+Transbond XT复合树脂。2-TXS组：Transbond加自酸蚀粘结剂+Transbond XT复合树脂。3-PQ1E组：釉质酸蚀+PQ1粘结剂+Transbond XT复合树脂。4-PQ1组：PQ1粘结剂+Transbond XT复合树脂。使用万能试验机以0.5mm/min的十字头速度评估托槽的剪切粘结强度。还测量了粘结剂残留指数（ARI）。采用单因素方差分析、Tukey事后检验、Kruskal-wallis检验和Mann-Witney U检验进行数据分析。

结果

在剪切粘结强度（SBS）和ARI方面，酸蚀组和未酸蚀组之间存在显著差异（p<0.05）；然而，未酸蚀组和自酸蚀粘结剂组之间未观察到显著差异（p>>0.05）。PQ1组的剪切粘结强度最低，但在可接受范围内，且其ARI低于其他组。

结论

PQ1粘结剂可用于不进行釉质酸蚀的托槽粘结，具有足够的粘结强度和最小的ARI。

关键词

托槽；剪切粘结强度；填充粘结剂；自酸蚀粘结剂

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本文引用的文献

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Dent Mater J. 2012;31(6):947-53. doi: 10.4012/dmj.2012-103.
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The effect of filler addition on biaxial flexure strength and modulus of commercial dentin bonding systems.添加填料对商用牙本质粘结系统双轴弯曲强度和模量的影响。
Quintessence Int. 2011 Feb;42(2):e39-43.
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The effects of prophylactic ozone pretreatment of enamel on shear bond strength of orthodontic brackets bonded with total or self-etch adhesive systems.牙釉质预防性臭氧预处理对用全酸蚀或自酸蚀粘结系统粘结的正畸托槽剪切粘结强度的影响。
Eur J Dent. 2010 Oct;4(4):367-73.
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One-component self-etching primer: a seventh generation of orthodontic bonding system?单一组分自酸蚀处理剂：第七代正畸粘接系统？
Eur J Orthod. 2010 Oct;32(5):567-70. doi: 10.1093/ejo/cjp160. Epub 2010 Feb 17.
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Am J Orthod Dentofacial Orthop. 2009 Sep;136(3):425-30. doi: 10.1016/j.ajodo.2007.08.024.
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