摘要： 目的探讨CAD/CAM一体化纤维桩核经染色后的颜色稳定性及粘接性能。方法将CAD/CAM一体化纤维桩核分为染色组（n=10）和对照组（n=10），共20个样本，Crystaleye分光光度计测定CAD/CAM一体化纤维桩核染色后及老化前后铸瓷全冠唇侧中1/3的L^*、a^*和b^*值，计算色差值（ΔE），并检测2组试件的粘接性能。结果 2组试件老化前后L^*值有统计学差异（P<0.05），a^*和^*b^*值无统计学差异（P> 0.05）。在UV光照老化第13天与基线值的色差值最大，对照组为2.05±0.68，染色组为2.14±0.73。老化前后色差值ΔE<3.3，在临床可接受范围内；对照组粘接力为（513.78±57.69） N，染色组粘接力为（486.09±70.10） N，2组粘接力最大载荷无统计学差异（P> 0.05）。结论 CAD/CAM一体化纤维桩核染色后能有效模拟变色牙牙本质颜色，具有较好的颜色稳定性，且粘接力符合临床应用范围。

CAD/CAM一体化纤维桩核经染色后颜色稳定性及粘接性能的研究

陈丽竹¹, 张然², 屈直¹

1. 锦州医科大学附属第二医院口腔修复科, 辽宁 锦州 121000;
2. 丹东市中心医院口腔修复科, 辽宁 丹东 118000

收稿日期:2021-09-10出版日期:2022-05-30发布日期:2022-05-28
通讯作者:屈直
作者简介:陈丽竹(1993-),女,医师,硕士研究生.
基金资助:辽宁省重点研发计划指导计划（2018225031）


关键词: CAD/CAM一体化纤维桩核, 变色牙, 加速老化, 颜色稳定性, 粘接性能
Abstract: Objective This study aimed to explore the color stability and bonding properties of computer aided design and computer aided manufacture (CAD/CAM) integrated fiber post and core after dyeing. Methods A total of 20 samples were divided into the staining group (n=10) and control group (n=10). Crystaleye spectrophotometer was used to measure the L^*,a^*,and b^* values in 1/3 of the labial side of the whole crown after the staining and aging of the CAD/CAM integrated fiber post and core,and color difference (ΔE) was calculated. The bonding properties of the two groups of specimens were tested. Results There was a significant difference in the L^* values between the two groups before and after aging (P< 0.05),while there was no significant difference in the a^* and b^* values (P> 0.05). The maximum color difference between the baseline and control group was 2.05±0.68,and that of the staining group was 2.14±0.73 on the 13th day of ultraviolet irradiation aging. The color difference ΔE<3.3 before and after aging was within the clinically acceptable range. The adhesion of the control group was 513.78±57.69 N,and that of the staining group was 486.09±70.10 N. There was no significant difference in the maximum adhesion load between the two groups (P> 0.05). Conclusion CAD/CAM integrated fiber post and core dyeing can effectively simulate the discoloration dentin,with good color stability and adhesion in line with clinical application.
Key words: CAD/CAM integrated fiber post-core, discolored teeth, accelerated aging, color stability, adhesive properties
PDF全文下载地址:

https://journal.cmu.edu.cn/CN/article/downloadArticleFile.do?attachType=PDF&id=2992