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钛瓷修复体的颜色稳定性
引用本文:Wu XM,Zhou Z. 钛瓷修复体的颜色稳定性[J]. 中国医学科学院学报, 2004, 26(4): 423-425
作者姓名:Wu XM  Zhou Z
作者单位:中国医学科学院,中国协和医科大学,北京协和医院口腔科,北京,100730
摘    要:
目的探讨钛瓷修复体在制作过程中经多次烧结处理后表面颜色的改变规律.方法设计制作钛瓷修复体标准试件,经过l、2、4、7、10次烧结处理,每次烧结后做色度测定.结果除a*和Hab外,其他色度指标差异均无显著性.a*和Hab值的差异主要表现在烧结l、2次与烧结7、10次之间,各组间的色差值均小于1.0.结论在正常的修复体制作过程中,烧结次数在7次以内,钛瓷修复体表面颜色基本无改变.

关 键 词:烧结  色差  修复体
修稿时间:2004-02-26

Color stability of porcelain-fused-to-titanium restorations after repeated firings
Wu Xiao-min,Zhou Zheng. Color stability of porcelain-fused-to-titanium restorations after repeated firings[J]. Acta Academiae Medicinae Sinicae, 2004, 26(4): 423-425
Authors:Wu Xiao-min  Zhou Zheng
Affiliation:Department of Dentistry, PUMC Hospital, CAMS and PUMC, Beijing 100730, China. wuxm1966@yahoo.com
Abstract:
OBJECTIVE: To study the effect of repeated firings on color of porcelain-fused-to-titanium restorations. METHODS: Twenty standard porcelain-fused-to-titanium specimens were made with Dentsply DETREY TiBond C3 and Dentaurum rematitan Til. Then they were fired 1, 2, 4, 7, and 10 times. Color measurement was done after each firing. RESULT: Most of the color parameters had no significant difference after firing except for a* and Hab. All the color difference among groups were smaller than 1.0 (deltaE < 1.0). CONCLUSION: Repeated firings will not affect the color stability of porcelain-fused-to-titanium restorations.
Keywords:firing  color difference  restoration
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