Impact of photodynamic therapy on the marginal adaptation of Biodentine used as root-end filling material.

IF 1 4区医学 Q4 ENGINEERING, BIOMEDICAL Bio-medical materials and engineering Pub Date : 2023-01-01 DOI:10.3233/BME-221469

Ivanka Dimitrova, Yaneta Kouzmanova

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Abstract

Background: The marginal adaptation of root-end filling materials and the effective antibacterial control in a surgical site are crucial for the successful outcome of endodontic surgery.

Objective: This study aimed to evaluate the effect of retrograde application of photodynamic therapy on the marginal adaptation of Biodentine used as a root-end filling material.

Methods: Twenty single-rooted anterior teeth were selected, instrumented and obturated with gutta-percha and AH Plus. The apical 3 mm of the roots were resected and root-end cavities were prepared with an ultrasonic retro-tip. The teeth were randomly divided into two groups (n = 10). In the first group, photodynamic therapy (PDT) was applied in the retrograde cavity prior to the root-end filling. In the second group retro cavity was filled without PDT. All specimens were obturated with Biodentine and afterwards sectioned longitudinally. The gap width at the material-dentin interface was measured using a scanning electron microscope. The results were statistically analyzed.

Results: The produced gap width by Biodentine/PDT was 3.85 μm versus 2.68 μm in the Biodentine control group with significant differences in-between.

Conclusion: Under the conditions of this study, PDT has a negative effect on the marginal adaptation of Biodentine used as root-end filling material.

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光动力疗法对用作根端填充材料的 Biodentine 边缘适应性的影响。

背景：根端充填材料的边缘适应性和手术部位的有效抗菌控制对根管治疗手术的成功结果至关重要：本研究旨在评估逆行应用光动力疗法对用作根端充填材料的 Biodentine 的边缘适应性的影响：方法：选取 20 颗单根前牙，用古塔波卡和 AH Plus 进行器械检查和封固。切除牙根顶端 3 毫米的部分，用超声波后牙尖制备根端空腔。牙齿被随机分为两组（n = 10）。第一组在根端充填前在逆行腔内应用光动力疗法（PDT）。第二组在不使用光动力疗法的情况下填充逆行腔。所有标本均使用 Biodentine 进行钝化，然后纵向切片。使用扫描电子显微镜测量材料-牙本质界面的间隙宽度。结果进行了统计分析：结果：Biodentine/PDT 产生的间隙宽度为 3.85 μm，而 Biodentine 对照组为 2.68 μm，两者之间存在显著差异：在本研究的条件下，PDT 对 Biodentine 作为根端充填材料的边缘适应性有负面影响。

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

Bio-medical materials and engineering 工程技术-材料科学：生物材料

CiteScore

1.80

自引率

0.00%

发文量

审稿时长

6 months

期刊介绍： The aim of Bio-Medical Materials and Engineering is to promote the welfare of humans and to help them keep healthy. This international journal is an interdisciplinary journal that publishes original research papers, review articles and brief notes on materials and engineering for biological and medical systems. Articles in this peer-reviewed journal cover a wide range of topics, including, but not limited to: Engineering as applied to improving diagnosis, therapy, and prevention of disease and injury, and better substitutes for damaged or disabled human organs; Studies of biomaterial interactions with the human body, bio-compatibility, interfacial and interaction problems; Biomechanical behavior under biological and/or medical conditions; Mechanical and biological properties of membrane biomaterials; Cellular and tissue engineering, physiological, biophysical, biochemical bioengineering aspects; Implant failure fields and degradation of implants. Biomimetics engineering and materials including system analysis as supporter for aged people and as rehabilitation; Bioengineering and materials technology as applied to the decontamination against environmental problems; Biosensors, bioreactors, bioprocess instrumentation and control system; Application to food engineering; Standardization problems on biomaterials and related products; Assessment of reliability and safety of biomedical materials and man-machine systems; and Product liability of biomaterials and related products.