Effect of Test Method on Flexural Strength of Recent Dental Ceramics
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概要
- 論文の詳細を見る
The purpose of the present study was to evaluate the relationships among three flexural strengths of recent dental ceramics using 3-point and 4-point bending tests and biaxial flexural test. Three brands of porcelain for veneering (d-SIGN, Supper porcelain AAA, Vintage Hallo), two injectable ceramics (Empress 2, OPC 3G), and one castable ceramic (Crys-Cera) were used. Twenty bar-shaped and 10 disc-shaped specimens of each ceramic type were prepared according to manufacturers' instructions, polished, and subjected to 3-point and 4-point bending tests and biaxial flexural test, respectively. Three flexural strengths for each ceramics were compared using one-way analysis of variance and Tukey comparison, and also investigated by Weibull analysis. The biaxial flexural strength and 3-point bending strength of all ceramics, except OPC 3G and Crys-Cera, were significantly greater than the corresponding 4-point bending strength. As for OPC 3G and Crys-Cera, their biaxial flexural strengths were significantly greater than their 3-point bending strengths, which is contrary to the other ceramics. The Weibull moduli ranged from 6.6 to 20.8. The Weibull moduli of examined ceramics, except Crys-cera, were statistically insignificant regardless of test methods.
- 日本歯科理工学会の論文
著者
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Iwasaki Naohiko
Advanced Biomaterials Department Of Restorative Sciences Division Of Oral Health Sciences Graduate S
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Takahashi Hidekazu
Advanced Biomaterials Department Of Restorative Sciences Division Of Oral Health Sciences Graduate S
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Iwasaki N
Advanced Biomaterials Department Of Restorative Sciences Division Of Oral Health Sciences Graduate S
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JIN Jingyue
Advanced Biomaterials, Department of Restorative Sciences, Division of Oral Health Sciences Graduate
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Jin Jingyue
Advanced Biomaterials Department Of Restorative Sciences Division Of Oral Health Sciences Graduate S
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Takahashi Hidekazu
Advanced Biomaterials Department Of Restorative Science Division Of Oral Health Science Graduate Sch
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Takahashi Hidekazu
Advanced Biomaterials Department Of Restorative Sciences Division Of Oral Health Sciences Graduate S
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