金属熔覆陶瓷和氧化锆牙科修复材料的断裂韧性研究。

IF 1.5 4区 工程技术 Journal of Research of the National Institute of Standards and Technology Pub Date : 2010-09-01 Epub Date: 2010-10-01 DOI:10.6028/jres.115.024
Janet B Quinn, George D Quinn, Veeraraghaven Sundar
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引用次数: 48

摘要

据报道,用于现代氧化锆框架修复的贴面陶瓷偶尔会在体内断裂。测量了这种贴面陶瓷的断裂韧性,并与传统的长石瓷贴面陶瓷的断裂韧性进行了比较。无白晶石贴面陶瓷的断裂韧性为0.73 MPa m±0.02 MPa m,低于烤瓷贴面陶瓷的断裂韧性1.10 MPa±0.2 MPa。(除非另有说明,不确定度为一个标准差。)表面弯曲裂纹(SCF)法适用于两种材料,但对含白石质长石瓷烤瓷单板的预裂纹识别较困难。
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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Fracture Toughness of Veneering Ceramics for Fused to Metal (PFM) and Zirconia Dental Restorative Materials.

Veneering ceramics designed to be used with modern zirconia framework restorations have been reported to fracture occasionally in vivo. The fracture toughness of such veneering ceramics was measured and compared to that of conventional feldspathic porcelain veneering ceramics for metal framework restorations. The fracture toughness of the leucite free veneer was measured to be 0.73 MPa m ± 0.02 MPa m, which is less than that for the porcelain fused to metal (PFM) veneering ceramic: 1.10 MPa ± 0.2 MPa. (Uncertainties are one standard deviation unless otherwise noted.) The surface crack in flexure (SCF) method was suitable for both materials, but precrack identification was difficult for the leucite containing feldspathic porcelain PFM veneer.

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期刊介绍: The Journal of Research of the National Institute of Standards and Technology is the flagship publication of the National Institute of Standards and Technology. It has been published under various titles and forms since 1904, with its roots as Scientific Papers issued as the Bulletin of the Bureau of Standards. In 1928, the Scientific Papers were combined with Technologic Papers, which reported results of investigations of material and methods of testing. This new publication was titled the Bureau of Standards Journal of Research. The Journal of Research of NIST reports NIST research and development in metrology and related fields of physical science, engineering, applied mathematics, statistics, biotechnology, information technology.
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