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各种CAD-CAM二氧化陶的微观结构和曲强度

Joissi Ferrari Zaniboni^1,2, Amanda Soares Silva¹, Aryvelto Miranda Silva³

¹Department of Restorative Dentistry, School of Dentistry, Araraquara, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil.

Journal of prosthodontics : official journal of the American College of Prosthodontists

|September 5, 2024

概括

这项研究发现,各种用于CAD-CAM系统的商业脱酸陶,尽管有微观结构差异,但具有相似的屈曲强度. 所有测试的陶都显示出可比的晶体强度.

科学领域:

牙科材料科学牙科材料科学
陶工程陶工程陶工程
生物材料是一种生物材料.

背景情况:

二酸盐陶在CAD-CAM牙科修复中被广泛使用.
了解它们的微观结构和机械特性对于临床成功至关重要.

研究的目的:

分析和比较不同商业二氧化陶的微观结构和机械性能.
评估品牌之间的晶体结构和屈曲强度的差异.

主要方法:

测试了五个商业二氧化陶品牌:e.max CAD,Rosetta SM,Evolith,Smile-Lithium CAD和HaHaSmile. 这些品牌都在进行测试.
微结构分析利用X射线衍射 (XRD) 和扫描电子显微镜 (SEM).
使用三点曲试验来确定曲强度,并使用ANOVA和韦布尔分析进行分析.

主要成果:

所有的陶都通过XRD显示了类似的甲酸盐和脱酸盐晶体强度.
在SEM中,e.max CAD/Rosetta SM与其他三组之间发现了明显的微观结构模式.
在测试的陶中没有观察到屈曲强度的统计学上显著差异 (p = 0.28).

结论:

商业CAD-CAM脱酸陶具有相似的屈曲强度.
品牌之间存在微观结构的变化,e.max CAD和Rosetta SM显示了类似的晶体结构.
这些发现表明,材料选择可能不会显著地影响机械性能,即曲强度.

关键词:

这是一个CAD-CAM系统.在X射线衍射的过程中,陶陶是一种陶.柔性强度是指柔性强度是指柔性的强度.

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