Impact of antimicrobial photodynamic therapy on micro-shear bond strength to dentin.

IF 2.4 4区医学 Q3 ENGINEERING, BIOMEDICAL

Lasers in Medical Science Pub Date : 2025-09-11 DOI:10.1007/s10103-025-04602-9

Christian Giancarlo Bernal Rodriguez, Maria Paula Novaes Camargo Manna, Fiorella Elizabeth Arévalo Tarrillo, Carlos de Paula Eduardo

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Abstract

To evaluate in vitro the bond strength through the micro-shear test of two adhesive systems (self-etching and total-etch), on bovine dentin surfaces after aPDT. For the aPDT, 0.01% methylene blue and two different light sources (red laser and LED) were used.Sixty samples were randomly divided into 6 groups (n = 10) for the micro-shear test: G1: self-etching adhesive (USB) without aPDT, G2: aPDT (laser) + USB, G3: aPDT (LED) + USB; G4: total-etch adhesive (ASB) without aPDT; G5: aPDT (laser) + ASB, G6: aPDT (LED) + ASB), followed by analysis of the fracture patterns of the samples. For statistical analysis, a two-way ANOVA (adhesive and treatment) and Tukey's test were performed, adopting a significance level of 5%.Regarding bond strength, there was no significant difference between the 6 groups analyzed. An adhesive fracture pattern predominated.Based on the results and the irradiation parameters used in this study, no changes in the bond strength of the resin to healthy dentin were observed after treatment with aPDT.

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抗菌光动力治疗对牙本质微剪切结合强度的影响。

通过自蚀刻和全蚀刻两种胶粘剂体系在aPDT后牛牙本质表面的微剪切试验，评价其体外粘接强度。对于aPDT，使用0.01%亚甲基蓝和两种不同的光源（红色激光和LED）。60个样品随机分为6组（n = 10）进行微剪切试验：G1：不带aPDT的自蚀刻胶（USB）， G2: aPDT（激光）+ USB, G3: aPDT (LED) + USB；G4：不含aPDT的全蚀刻胶（ASB）；G5: aPDT（激光）+ ASB, G6: aPDT (LED) + ASB)，然后分析样品的断裂模式。统计分析采用双因素方差分析（胶粘剂和处理）和Tukey检验，显著性水平为5%。在粘结强度方面，6组间无显著差异。主要是粘着性骨折。根据本研究的结果和辐照参数，aPDT治疗后树脂与健康牙本质的结合强度没有变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Lasers in Medical Science 医学-工程：生物医学

CiteScore

4.50

自引率

4.80%

发文量

192

审稿时长

3-8 weeks

期刊介绍： Lasers in Medical Science (LIMS) has established itself as the leading international journal in the rapidly expanding field of medical and dental applications of lasers and light. It provides a forum for the publication of papers on the technical, experimental, and clinical aspects of the use of medical lasers, including lasers in surgery, endoscopy, angioplasty, hyperthermia of tumors, and photodynamic therapy. In addition to medical laser applications, LIMS presents high-quality manuscripts on a wide range of dental topics, including aesthetic dentistry, endodontics, orthodontics, and prosthodontics. The journal publishes articles on the medical and dental applications of novel laser technologies, light delivery systems, sensors to monitor laser effects, basic laser-tissue interactions, and the modeling of laser-tissue interactions. Beyond laser applications, LIMS features articles relating to the use of non-laser light-tissue interactions.