Carbon nanotube-modified adhesive to caries affected dentin conditioned with Nd: YAP laser, phosphoric acid, and photoactivated-erythrosine

IF 3.1 3区医学 Q2 ONCOLOGY Photodiagnosis and Photodynamic Therapy Pub Date : 2024-08-15 DOI:10.1016/j.pdpdt.2024.104307

Fahad Alkhudhairy , Mohammad H. AlRefeai

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Abstract

Aim

Dentin conditioned with phosphoric acid (PA) Nd: YAP laser, and photoactivated-Ery(Erythrosine) on microleakage, shear bond strength (SBS) degree of conversion (DC), and rheological assessment of adhesive-infused with carbon nanotubes (CNTs).

Material and method

Carious ninety-six human mandibular molars were included. Specimens were disinfected and allocated into three groups based on surface pretreatment (n = 32) Group 1 (PA), Group 2 (Nd: YAP) laser, and Group 3 (Photoactivated-Ery). Conditioned groups were further divided into two 2 subgroups based on the application of unmodified ERA and CNTs-modified ERA. Composite restorations were placed on the CAD surface and thermal aging of the samples was performed. The microleakage assessment was conducted using a dye penetration test. Universal testing machine (UTM) assessed SBS bond failure was evaluated using a stereomicroscope. Scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) analyses of CNT, and Fourier Transform Infrared FTIR of adhesives were performed. One-way ANOVA and Tukey post hoc analyzed the outcomes.

Results

Group 1B samples (PA+ CNTs modified adhesive) presented the minimum marginal leakage and highest bond integrity. Group 2A (Nd:YAP laser+Unmodified adhesive) displayed the maximum scores of microleakage and lowest bond strength.

Conclusion

Photoactivated Ery-PS can serve as an alternative to phosphoric acid for conditioning CAD. Incorporating CNT in adhesive significantly enhanced bond integrity and marginal seal with no significant difference in DC.

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使用钕：YAP 激光、磷酸和光活化赤藓红调节龋齿牙本质的碳纳米管改性粘合剂。

目的：DENTIN CONDITIONED：磷酸（PA）Nd：YAP激光和光活化-Ery（赤藓红）对注入碳纳米管（CNTs）的粘合剂的微渗漏、剪切粘接强度（SBS）转换度（DC）和流变学评估的影响：材料和方法：包括龋齿在内的 96 颗人类下颌臼齿。标本经消毒后根据表面预处理情况分为三组（n=32）：第 1 组（PA）、第 2 组（Nd：YAP）激光和第 3 组（光激活-Ery）。根据未改性ERA和CNTs改性ERA的应用情况，条件组又分为两个亚组。将复合修复体置于 CAD 表面，并对样品进行热老化。使用染料渗透测试进行微渗漏评估。使用体视显微镜对万能试验机 (UTM) 评估的 SBS 粘合失败进行评估。对 CNT 进行了扫描电子显微镜 (SEM)、能量色散 X 射线 (EDX) 分析，对粘合剂进行了傅立叶变换红外光谱 (FTIR) 分析。对结果进行了单因素方差分析和 Tukey post hoc 分析：结果：1B 组样品（PA+ CNTs 改性粘合剂）的边缘渗漏最小，粘合完整性最高。结果：第 1B 组样品（PA+ CNTs 改性粘合剂）的边缘渗漏最小，粘合完整性最高；第 2A 组样品（Nd:YAP 激光+未改性粘合剂）的微渗漏得分最高，粘合强度最低：结论：光活化 Ery-PS 可作为磷酸的替代品，用于修整 CAD。在粘合剂中加入碳纳米管可显著提高粘结完整性和边缘封闭性，但在直流电方面无明显差异。

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来源期刊

Photodiagnosis and Photodynamic Therapy ONCOLOGY-

CiteScore

5.80

自引率

24.20%

发文量

509

审稿时长

50 days

期刊介绍： Photodiagnosis and Photodynamic Therapy is an international journal for the dissemination of scientific knowledge and clinical developments of Photodiagnosis and Photodynamic Therapy in all medical specialties. The journal publishes original articles, review articles, case presentations, "how-to-do-it" articles, Letters to the Editor, short communications and relevant images with short descriptions. All submitted material is subject to a strict peer-review process.