The effect of different mechanical retention forms on shear bond strength of rebonding of ceramic brackets.

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-01-30 Epub Date: 2023-12-15 DOI:10.4012/dmj.2023-164

Ho-Jin Kim, Tae-Yub Kwon, Hyung-Kyu Noh, Hyo-Sang Park

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Abstract

The objective of this study is to compare the shear bond strength (SBS) and the morphological characteristics and chemical compositions of the base surface of newly bonded and rebonded ceramic brackets with different mechanical retention bases. Sixty extracted human premolars were divided into the newly bonded and rebonded groups. Ceramic brackets with patterned, laser-etched, and particle-coated patterned bases were randomly bonded to the tooth samples in each group (n=10 per base type). The rebonded brackets exhibited significantly lower SBS than the newly bonded brackets (p<0.05). The main chemical composition of the brackets in both groups was aluminum on the energy-dispersive X-ray spectroscopy. Scanning electron microscopy imaging showed the presence of regular-shaped undercuts or irregular micro-undercuts on the bracket bases which mostly remained intact even after debonding and sandblasting, while coated particles disappeared. The rebonded ceramic brackets with mechanical retention bases exhibited clinically acceptable bond strength regardless of retentive forms.

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不同机械固位形式对陶瓷托架再粘接剪切粘接强度的影响

本研究的目的是比较不同机械固位基底的新粘结和再粘结陶瓷托槽基底表面的剪切粘结强度（SBS）、形态特征和化学成分。60 颗拔出的人类前臼齿被分为新粘结组和再粘结组。每组的牙齿样本随机粘结了带有花纹、激光蚀刻和颗粒涂层花纹基底的陶瓷托槽（每种基底类型的数量=10）。重新粘接的托槽的 SBS 明显低于新粘接的托槽（p

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.