Influence of Natural Dentin Biomodification Agent on Push-Out Bond Strength and Nanoleakage of Self-Adhesive Resin Cement Luting of Glass-Fiber Posts.

IF 3.2 3区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE
Italo Hudson Tavares Maia, Tainah Oliveira Rifane, Bárbara de Fátima Barbosa de Freitas, Victor Pinheiro Feitosa, Diego Lomonaco, Diego Martins De Paula
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Abstract

Objective: To evaluate the plant-derived compound lignin (LIG) as a pretreatment of intraradicular dentin in combination with EDTA on push-out bond strength (PBS) and nanoleakage of the glass fiber posts (GFPs) cemented using adhesive resin cement.

Material and methods: Twenty-eight human incisor roots were prepared for GFP cementation and divided based on dentin pretreatment: (1) CONTROL: no pretreatment, (2) EDTA: 17% EDTA for 3 min, (3) EDTA-LIG: 17% EDTA and 2% lignin for 3 min, (4) EDTA-PAC: 17% EDTA and 2% lignin for 3 min. The GFPs were cemented using the self-adhesive resin cement Multilink Speed. The roots (n = 7) were sectioned into 1 mm-thick discs and subjected to PBS testing after 1 week or 6 months. Nanoleakage was analyzed by SEM. Statistical analysis was performed using two-factor ANOVA and Tukey's test (p < 0.05).

Results: Higher PBS was identified for the CONTROL group (p < 0.001). After 6 months, the EDTA-LIG maintained the bond strength with a predominance of mixed failures, while the EDTA-PAC, EDTA, and CONTROL groups showed reduction of bond strength, with a predominance of adhesive failures along with severe silver infiltration in the interface.

Conclusion: LIG associated with EDTA as a pretreatment for intraradicular dentin shows significant potential for attaining stable bond strength and interfacial integrity of self-adhesive resin cement to intraradicular dentin.

天然牙本质生物改良剂对玻璃纤维柱自粘树脂胶合剂的推出粘接强度和纳米渗漏的影响
目的评估植物提取物木质素(LIG)与乙二胺四乙酸(EDTA)结合作为牙本质预处理对使用粘合剂树脂水门汀粘接的玻璃纤维柱(GFP)的推出粘接强度(PBS)和纳米渗漏的影响:根据牙本质预处理的不同分为:(1) 对照组:无预处理;(2) EDTA:17% EDTA,3 分钟;(3) EDTA-LIG:17% EDTA 和 2%木质素,3 分钟;(4) EDTA-PAC:17% EDTA 和 2%木质素,3 分钟:17%乙二胺四乙酸和 2%木质素,3 分钟。使用自粘性树脂粘接剂 Multilink Speed 粘接 GFP。将牙根(n = 7)切成 1 毫米厚的圆片,并在 1 周或 6 个月后进行 PBS 测试。用扫描电镜分析纳米渗漏情况。统计分析采用双因素方差分析和 Tukey 检验(p 结果:结果:CONTROL 组的 PBS 值更高:将 LIG 与 EDTA 联用作为牙本质的预处理,可显著提高自粘树脂水门汀与牙本质的粘接强度和界面完整性。
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来源期刊
Journal of Esthetic and Restorative Dentistry
Journal of Esthetic and Restorative Dentistry 医学-牙科与口腔外科
CiteScore
6.30
自引率
6.20%
发文量
124
审稿时长
>12 weeks
期刊介绍: The Journal of Esthetic and Restorative Dentistry (JERD) is the longest standing peer-reviewed journal devoted solely to advancing the knowledge and practice of esthetic dentistry. Its goal is to provide the very latest evidence-based information in the realm of contemporary interdisciplinary esthetic dentistry through high quality clinical papers, sound research reports and educational features. The range of topics covered in the journal includes: - Interdisciplinary esthetic concepts - Implants - Conservative adhesive restorations - Tooth Whitening - Prosthodontic materials and techniques - Dental materials - Orthodontic, periodontal and endodontic esthetics - Esthetics related research - Innovations in esthetics
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