Hekland Helge, Riise Trond, Berg Einar
Int J Prosthodont. 2003 Nov-Dec;16(6):621-5.
The aim of this article was to study frequencies and distribution of remakes of all-ceramic inlays/onlays, veneers, and crowns occurring before and after cementation.
A total of 2,069 sintered feldspathic ceramic restorations (Colorlogic) and 1,136 pressure-molded ceramic restorations (IPS Empress 1 and 2) were produced during the study period by one dental laboratory. The laboratory gave an unqualified and unlimited guarantee for their ceramic restorations. The outcome variable was reports from the clinicians to the dental laboratory about any problems related to the restoration, necessitating remake.
Problems occurring before cementation occurred in 4.4% of the restorations. Veneers were remade more frequently than the other types of restorations (6.6%). After cementation, the overall 2-year rate of remakes was 1%, indicating a survival rate of the ceramic restorations of 99%, with inlays/onlays exhibiting the highest (99.8%) and crowns the lowest (98.4%) rates. This difference in rates was significant. No significant differences in remakes between ceramics or tooth categories were found.
There were few problems in a short- to medium-term perspective that, in the opinion of general practitioners, necessitated remakes of all-ceramic restorations.
本文旨在研究全瓷嵌体/高嵌体、贴面及全冠在粘接前后翻制的频率及分布情况。
在研究期间，一家牙科实验室制作了总计2069件烧结长石质陶瓷修复体（Colorlogic）和1136件压力成型陶瓷修复体（IPS Empress 1和2）。该实验室对其陶瓷修复体提供无条件且无限制的质保。观察指标为临床医生向牙科实验室报告的与修复体相关的任何问题，这些问题需要进行翻制。
粘接前出现问题的修复体占4.4%。贴面的翻制频率高于其他类型的修复体（6.6%）。粘接后，2年的总体翻制率为1%，表明陶瓷修复体的留存率为99%，其中嵌体/高嵌体的留存率最高（99.8%），全冠的留存率最低（98.4%）。这种比率差异具有统计学意义。在陶瓷类型或牙齿类别之间，翻制情况未发现显著差异。
从中短期来看，全科医生认为全瓷修复体需要翻制的问题较少。
