摘要
目的:观察不同模拟四环素基牙背景颜色(偏黄、偏浅灰、偏亮红、偏深灰、偏暗红色)对瓷贴面修复体色彩学的影响。方法:为模拟不同四环素基牙背景(偏黄、偏浅灰、偏亮红、偏深灰、偏暗红色)而制备的相应背板上,使用透明色Choice光固化树脂水门汀进行瓷贴面修复,测量修复前后瓷贴面试件表面的L*a*b*值。结果:黏结前后瓷贴面试件表面的L*、a*、b*值之间有统计学差异(P﹤0.05)。与标准A2色瓷贴面相比,黏结后的瓷贴面试件L*值减小。随着背景明度值减小,黏结瓷贴面明度值L*降低程度增加。模拟四环素基牙背景颜色偏黄色组瓷贴面黏结前后的的色差值最小,为(1.25±0.09)NBS,背景颜色偏深灰色时瓷贴面试件黏结前后的的色差值最大,可达(5.28±0.16)NBS。结论:偏黄色四环素基牙对修复体的颜色影响较小,四环素基牙偏灰色对修复体最终色彩影响较大,进行此类四环素牙的修复时最好选用含有遮色剂的树脂水门汀进行黏结。
AIM：To observe the influence of different abutment teeth on the esthetic results of veneer restorations for tetracycline stained teeth by mimicking clinical situations.METHODS：Ceramic veneers were bonded to different artificially stained background with Choice resin cements.The L＊ a＊ b＊ values of different restorations were recorded and compared afterwards.RESULTS：The L＊ a＊ b＊ values were significantly different（P 〈 0.005） among different simulated background（abutment teeth）.With the decrease of the brightness value of the background,the L＊ value decreased greatly and the color difference（△E） increased obviously.It showed that the color of the abutment teeth influenced the color of the restoration significantly,and the influence was the least when the abutment teeth color was yellow.CONCLUSION：Yellowish abutment teeth shows the least color influence on venner restorations.Dark grey color shows the most significant effect on the color of veneers,therefore masking cements should be used to bond the veneer when abutment teeth color is dark grey.
出处
《牙体牙髓牙周病学杂志》
CAS
北大核心
2010年第10期578-580,571,共4页
Chinese Journal of Conservative Dentistry
关键词
四环素牙
L＊a＊b＊值
瓷贴面
tetracycline stained teeth
L^＊ a^＊ b^＊ value
porcelain veneer
作者简介
潘祁（1984-），女，陕西柞水人，硕士生（导师：陈吉华）
通讯作者：陈吉华，E-mail：jhchen@fmmu．edu．cn
