Metal-ceramic-fixed dental prosthesis with CAD/CAM-fabricated substructures: 6-year clinical results
Metal-ceramic-fixed dental prosthesis with CAD/CAM-fabricated substructures: 6-year clinical results
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DOI：
10.1007/s00784-012-0851-9
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发表时间：
2013-06-01
影响因子：
3.4
通讯作者：
Boeckler, Arne F.
中科院分区：
文献类型：
--
作者：
Hey, Jeremias;Beuer, Florian;Boeckler, Arne F.
本研究的目的是评估计算机辅助设计(CAD)/计算机辅助制造(CAM)制作的钛基托在6年后使用低熔瓷贴面的固定牙修复体的临床性能。这些框架是使用早期版本的牙科CAD/CAM系统设计和铣削的。每年进行一次检查，共发生10处瓷质断裂，1处下部结构断裂，1处生物失败。成功率为58.6%，存活率为88%(Kaplan-Meier分析)。因此，目前提出的概念是不被推荐的。6年后，采用粉末堆积技术贴面的CAD/CAM制造的钛基托的临床效果很差。
The aim of this study was to evaluate the clinical performance of fixed dental prostheses (FDPs) with computer-aided design (CAD)/computer-aided manufacturing (CAM)-fabricated titanium substructures veneered with low-fusing porcelain after 6 years.Thirty-one FDPs for 23 patients were fabricated. The frameworks were designed and milled using an early version of a dental CAD/CAM system. Checkups were performed annually.Complications totaled ten porcelain fractures, one substructure fracture, and one biologic failure. The success rate was calculated at 58.6 % and the survival rate at 88 % (Kaplan-Meier analysis).The clinical performance of the described technique for FDPs with titanium substructures was poor. Therefore, the presented concept cannot be recommended.CAD/CAM-fabricated titanium substructures veneered with the powder build-up technique showed poor clinical outcome after 6 years.