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首页> 外文期刊>The Journal of Prosthetic Dentistry >Effect of number of firings on the color and translucency of ceramic core materials with veneer ceramic of different thicknesses
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Effect of number of firings on the color and translucency of ceramic core materials with veneer ceramic of different thicknesses

机译：燃烧次数对陶瓷芯材料与不同厚度胶合剂的颜色和半透明的影响

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Abstract Statement of problem Whether masking or translucency should be the goal for achieving an esthetic restoration with ceramic materials is unknown. Purpose The purpose of this in?vitro study was to examine the effect of the number of firings on the color and translucency of ceramic core material with different thicknesses of veneer ceramic. Material and methods Three different ceramic systems were used: IPS Empress (IE), IPS e.max Press (IEP), and Turkom Cera (TC). Ninety disk-shaped cores, 10 mm in diameter and 0.8 mm in thickness were prepared using each system (n=30). The specimens were divided into 3 subgroups (n=10) according to the thickness of the veneering ceramic: 0.5, 1.0, and 1.5 mm. The specimens were fired 1, 3, and 5 times, and the color parameters of the specimens were measured. The color measurements were repeated, and the data were statistically evaluated using 2-way and multifactorial analysis of variance, the Duncan test, and the Bonferroni post hoc test. Results The number of firings affected the translucency parameter and CIELab values. Increased porcelain thickness led to decreased translucency parameter and L* values and increased a* and b* values ( P P P >.05). The number of firings affected the color change of the IE and IEP systems but not of the translucency parameter system. Conclusions Repeated firings and porcelain thickness affected the final color and translucency of the ceramic systems tested. These 2 factors adversely affected the esthetic result and should be considered in both the preparation and the laboratory phase.
机译：摘要问题声明是否应该是通过陶瓷材料实现审美恢复的目标是未知的。目的在体外研究中的目的是检查燃烧次数对具有不同厚度的单板陶瓷陶瓷芯材料的颜色和半透明的效果。材料和方法使用了三种不同的陶瓷系统：IPS empress（IE），IPS E.Max按（IEP）和Turkom Cera（TC）。使用每个系统制备九十盘状芯，直径为10mm，厚度为0.8mm）（n = 30）。根据嵌合陶瓷的厚度将样品分成3个子组（n = 10）：0.5,1.0和1.5mm。标本烧成1,3和5次，测量样品的颜色参数。重复颜色测量值，使用双向和多重活动分析，Duncan测试以及Bonferroni后Hoc测试进行统计评估数据。结果射击次数影响了半透明参数和cielab值。增加的瓷厚度导致半透明参数和L *值降低，增加A *和B *值（P P P> .05）。射击次数影响了IE和IEP系统的颜色变化，但不具有半透明参数系统。结论反复燃烧和瓷厚度影响了所测试的陶瓷系统的最终颜色和半透明。这两个因素对美学结果产生不利影响，并应考虑在制剂和实验室阶段。

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