在一家私人综合诊所对261个二硅酸锂全冠进行回顾性生存分析。
Retrospective survival analysis of 261 lithium disilicate crowns in a private general practice.
作者信息
Valenti Marco, Valenti Alessandro
出版信息
Quintessence Int. 2009 Jul-Aug;40(7):573-9.
OBJECTIVES
This retrospective study evaluated the clinical performance and long-term survival of glass-ceramic lithium disilicate all-ceramic restorations in anterior and posterior areas over a 10-year period.
METHOD AND MATERIALS
Following a consistent protocol over 10 years, 261 lithium disilicate crowns (IPS Empress 2, Ivoclar Vivadent), including 101 anterior (38.7%) and 160 posterior (61.3%), were cemented using an adhesive technique and observed by the clinician who prepared and luted them. The data were analyzed using the Kaplan-Meier test. The clinical evaluation adopted the California Dental Association (CDA) modified criteria after recalling all patients between January and May 2008.
RESULTS
Six crowns failed and were replaced, 4 due to chipping and 2 due to core fracture. The overall survival rate was 95.5%.
CONCLUSION
In this retrospective evaluation, lithium disilicate ceramic restorations had a low clinical failure rate after up to 120 months.
目的
本回顾性研究评估了锂 disilicate 玻璃陶瓷全瓷修复体在前牙和后牙区域 10 年期间的临床性能和长期存活率。
方法和材料
在 10 年期间遵循一致的方案，使用粘结技术粘结了 261 个锂 disilicate 全冠（IPS Empress 2，义获嘉伟瓦登特），包括 101 个前牙全冠（38.7%）和 160 个后牙全冠（61.3%），并由制备和粘结它们的临床医生进行观察。使用 Kaplan-Meier 检验分析数据。在 2008 年 1 月至 5 月召回所有患者后，临床评估采用加利福尼亚牙科协会（CDA）修改后的标准。
结果
6 个全冠失败并被更换，4 个由于崩瓷，2 个由于核折裂。总体存活率为 95.5%。
结论
在本回顾性评估中，锂 disilicate 陶瓷修复体在长达 120 个月后临床失败率较低。
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