Evaluation of Er:YAG and Er,Cr:YSGG lasers on intraradicular bonding using modified glass fiber tips.

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2023-11-29 Epub Date: 2023-09-21 DOI:10.4012/dmj.2023-025

Jaana Hannele Sippus, Thiago Henrique Scarabello Stape, Arzu Tezvergil-Mutluay

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Abstract

The aim of this study was to determine whether erbium laser irradiation emitted by modified glass-fiber tips would improve the intraradicular bonding of fiber posts. Forty human canines were endodontically treated and prepared for fiber-post placement. Roots were divided into five groups (n=8); according to the laser-tip combinations (2,940 nm Er:YAG and 2,780 nm Er,Cr:YSGG). Non-irradiated root canals served as control. Posts were cemented with self-adhesive resin cement and subjected to push-out test. Failure modes were characterized, and intraradicular bonded interfaces were analyzed by SEM and submitted to nanoleakage evaluation. Data were analyzed by two-way ANOVA and Tukey test (α=0.05). No significant differences were observed in cervical and middle sections (p>0.05), while significantly higher bond strengths were observed in apical sections (p<0.05). Laser irradiation reduced adhesive failures, cement-dentin gap formation, and nanoleakage apically. Laser-irradiation protocols employing end- or radial-firing tips improved bonding to apical intraradicular dentin contributing to more uniform bonded interfaces.

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Er:YAG和Er，Cr:YSGG激光对使用改良玻璃纤维尖端的根内结合的评价。

本研究的目的是确定改性玻璃纤维尖端发射的铒激光照射是否会改善纤维桩的根内结合。对40只人类犬科动物进行了牙髓治疗，并为纤维后植入做了准备。根被分为5组（n=8）；根据激光尖端组合（2940nm Er:YAG和2780nm Er、Cr:YSGG）。未经辐照的根管作为对照。柱子用自粘树脂水泥粘合，并进行推出试验。对失效模式进行了表征，并通过SEM分析了根内结合界面，并进行了纳米泄漏评估。通过双向方差分析和Tukey检验（α=0.05）对数据进行分析。在宫颈和中段没有观察到显著差异（p>0.05），而在根尖段观察到显著更高的结合强度（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.