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由三个不同的计算机辅助设计/计算机辅助制造陶材料制造的内冠的断裂强度:一个体外研究

Shatha Alshali¹, Esra Attar¹

¹Department of Oral and Maxillofacial Prosthodontics, King Abdulaziz University, Jeddah, SAU.

|July 10, 2023

概括

这项研究比较了三种CAD/CAM材料制成的内冠修复的骨折强度. 所有测试材料,包括IPS e.max CAD,VITA Enamic和VITA Suprinity,都表现出临床上可接受的骨折强度,超过的力量.

科学领域:

牙科材料科学牙科材料科学
生物材料工程生物材料工程
恢复性牙科恢复性牙科

背景情况:

内冠修复由于粘合剂和修复材料的进步而越来越受欢迎.
临床成功取决于诸如制剂设计,材料选择,骨折阻力和边缘适应等因素.
这项体外研究评估了由不同CAD/CAM材料制成的内冠的断裂强度.

研究的目的:

为了比较内冠修复的骨折强度.
评估三种不同的CAD/CAM陶材料:酸玻璃陶 (VITA Suprinity),聚合物透混合陶 (VITA Enamic) 和二氧化玻璃陶 (IPS e.max CAD).

主要方法:

提取的30个下第一个牙被根管处理并为内冠做好准备.
对于每个陶材料,牙被分为三个组 (n=10).
用CAD/CAM技术制造内冠,磨,结,并使用通用测试机进行断裂强度测试.

主要成果:

在陶组中观察到骨折强度的显著差异 (P=0.037).
IPS e.max CAD显示的断裂强度略高于VITA Enamic (P=0.055). 这是一个非常好的结果.
在VITA Enamic和VITA Suprinity之间,或在VITA Suprinity和IPS e.max CAD之间没有发现显著差异.

结论:

所有测试的CAD/CAM材料 (VITA Enamic,IPS e.max CAD,VITA Suprinity) 的断裂强度值都超过了力所需的值.
由这些材料制造的内冠提供了临床上可接受的骨折抵抗力.

关键词:

染色体冠状体冠状体骨折强度强度的断裂强度是什么 ips e.max cad 是一个很好的方法.维塔艾玛尼克 (VitaEmaic) 是一种活力.生命至上生命至上

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