瓷层厚度对氧化锆全瓷修复体颜色的影响

发布时间：2018-05-02 08:04

本文选题：氧化锆陶瓷 + 厚度　；参考：《第三军医大学学报》2014年13期

【摘要】：目的探讨不同核心瓷和饰面瓷厚度对氧化锆全瓷修复体颜色的影响。方法将氧化锆底瓷材料切割并高温烧结,制成厚度分别为0.4、0.6、0.8、1.0、1.2 mm的核心瓷试件;并在表面堆塑不同厚度(1.2、1.0、0.8、0.6、0.4 mm)的饰面瓷,使其总厚度为1.6 mm;制作厚度为0.4 mm的核心瓷试件,分别构筑0.4、0.6、0.8、1.0、1.2 mm的饰面瓷。用CM600d/700d分光测色仪分别测量每组颜色的参数L*a*b*值,计算色差。结果随氧化锆核心瓷厚度的增加,L*和b*值增大,即明度增加,颜色偏向黄色,各组之间L*与b*值差异有统计学意义(P0.05);随饰面瓷厚度的增加,L*值减小,a*和b*值增大,各组之间L*、a*与b*值差异有统计学意义(P0.05);随氧化锆核心瓷与饰面瓷比的增大,试件L*值增大,a*和b*值减小,各组之间L*值差异有统计学意义(P0.05)。随着瓷层厚度增加,相邻2组之间的色差△E呈减小趋势。结论氧化锆全瓷修复体核心瓷与饰面瓷厚度及两者相互作用均能对颜色参数产生影响,核心瓷与饰面瓷厚度越大,颜色差异越小。
[Abstract]:Objective to investigate the influence of different core porcelain and veneer porcelain thickness on the color of zirconia all ceramic restorations. Methods the core ceramic specimens with thickness of 0.4,0.6,0.8,1.0,1.2 mm were made by cutting zirconia base porcelain and sintering at high temperature, and the veneer porcelain with different thickness (1.2,1.0,0.8,0.6,0.4 mm) was built on the surface to make the total thickness of 1.6 mm; A core porcelain specimen with a thickness of 0.4 mm is made to construct the veneer porcelain of 0.4,0.6,0.8,1.0,1.2 mm respectively. The L*a*b* value of the parameters of each color of each group is measured by CM600d/700d spectrophotometer, and the color difference is calculated. The result is that the value of L* and b* increases with the increase of the thickness of the core porcelain of zirconium oxide, that is, the brightness increases and the color is yellow. The difference of L* and b* values between each group is unified. Study significance (P0.05); with the increase of veneer porcelain thickness, L* value decreased, a* and b* value increased. The difference of L*, a* and b* values between each group was statistically significant (P0.05). With the increase of zirconia core porcelain and veneer porcelain ratio, the L* value of specimens increased, a* and b* decreased, and the difference of L* values between each group was statistically significant. With the increase of the thickness of the porcelain layer, 2 adjacent groups of adjacent groups were increased. The color difference between the core porcelain and the veneer porcelain can affect the color parameters. The greater the thickness of the core porcelain and the veneer porcelain, the smaller the color difference between the core porcelain and the veneer porcelain.

【作者单位】：佳木斯大学附属口腔医院修复二科;牡丹江医学院附属红旗医院口腔科;
【基金】：黑龙江省卫生厅科研计划(2013219)~~
【分类号】：R783.1

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