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KMID : 0362120080300010041
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Journal of Technologic Dentistry
2008 Volume.30 No. 1 p.41 ~ p.47
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Study on Biaxial Flexural Strength by Glass-infiltration of Zirconia Ceramics
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Joo Kyu-Ji
Song Kyeong-Woo
Jung Jong-Hyun
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Abstract
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This study was to evaluate the biaxial flexural strength of zirconia ceramics after glass-infiltration on zirconia core. The zirconia specimens were made with diameter-15mm, thickness-0.6mm using zirconia block which divided into 1) sintered group, 2) heat - treated group, 3) Glass - infiltrated group and experimented fracture strength by each 10 specimens in experimental group. The biaxial flexural test was performed at crosshead speed of 0.1 min. The experiment result average fracture strength was shown 541.0 in sintered group and glass-infiltrated group as 662.2 river of 22.4% rise appear. Weibull coefficient sintered group is 3.462 and glass-infiltrated group improved believability about fracture strength from melting permeation processing of glass by 4.716.
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KEYWORD
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Biaxial Flexural Strength, Glass-infiltration of Zirconia Ceramics
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