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在单根牙中用激光,超声波尖端和常规口进行根末准备后,比较和评估微裂纹和涂抹层:"扫描电子显微镜研究":

Jyotirmoyee Bhanja¹, Shyam Agrawal¹, Rachit Mathur¹

¹Department of Conservative Dentistry and Endodontics, NIMS Dental College and Hospital, Jaipur, Rajasthan, India.

Journal of conservative dentistry and endodontics

|February 20, 2025

概括

与超声波和常规方法相比,激光制备根末腔的结果是较少的微裂和较少的涂抹层. 这一发现对于改善内牙治疗结果至关重要.

科学领域:

牙周内科医院牙周内科医院牙周内科医院
牙科材料科学牙科材料科学
生物材料是一种生物材料.

背景情况:

根末腔的准备是内牙外科手术中的关键步骤.
微裂纹和涂抹层可能会损害根端填充的成功.

研究的目的:

评估和比较由激光,超声波尖端和常规开采制备的根末腔中微裂纹和涂层形成的发生率.
用扫描电子显微镜 (SEM) 评估不同制备方法的疗效.

主要方法:

52个单根牙被准备好并填充.
使用激光,超声波尖端或常规的烧孔创建了根端腔.
一个对照组没有接受腔腔制剂.
扫描电子显微镜 (SEM) 用于分析样本的微裂纹和涂抹层.

主要成果:

在激光和常规 (P=0.002) 以及超声波和激光 (P=0.015) 制剂之间观察到微裂纹形成的显著差异.
传统的口制备方法在根顶部产生了最多的微裂纹 (0.85 ± 0.36),其次是超声波方法 (0.54 ± 0.23).
激光制备产生较少的微裂纹,相比于传统的和超声波方法.

结论:

与超声波尖端和常规钻孔相比,激光准备根端腔的激光制备产生较少的微裂纹和较少的涂抹层.
这些发现表明,激光技术可能为内牙外科手术中的根端腔室准备提供一种优越的方法.

关键词:

在ER:YAG激光器.周围的手术周围的手术扫描电子显微镜扫描电子显微镜超声波回复尖端超声波回复尖端

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相关概念视频

Scanning Electron Microscopy

Scanning Electron Microscopy

A scanning electron microscope (SEM) is used to study the surface features of a sample by using an electron beam that scans the sample surface in a two-dimensional manner. Typically, areas between ~1 centimeter to 5 micrometers in width can be imaged. SEM can be used to image bacteria, viruses, tissues as well as larger samples like insects. Conventional SEM gives a magnification ranging from 20X to 30,000X and spatial resolution of 50 to 100 nanometers.
Fundamental Principles
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