Walter M, Böning K, Reppel P D
Department of Prosthetic Dentistry, Dental School, Universitätsklinikum Carl Gustav Carus, Dresden, Germany.
J Dent. 1994 Dec;22(6):346-8. doi: 10.1016/0300-5712(94)90086-8.
In 37 patients 88 titanium restorations were placed during a 1-year period 1990-91. The 69 crowns and 19 fixed partial dentures comprised 147 prosthodontic units. All restorations were fabricated by duplication milling and electrical discharge machining of pure titanium (Procera Technology, Nobelpharma, Gothenburg, Sweden). Based on the results of clinical follow-up, Kaplan-Meier survivor functions were calculated. The survivor rate of 40 metal crowns and pontics was 100%. In 107 porcelain-fused-to-metal units the 3-year survivor rate concerning removal was 95%. When relating the survival to an intact ceramic veneer, the 3-year survivor rate of porcelain-fused-to-metal units was 84%. The quality of the restorations evaluated by the rating system of the California Dental Association was found to be satisfactory in the vast majority of cases. It can be concluded that machined titanium restorations are suitable for clinical use, although not all problems, especially in the field of metal-ceramics have yet been completely solved.
1990年至1991年的1年时间里，为37例患者植入了88颗钛修复体。69颗牙冠和19副固定局部义齿构成了147个口腔修复单元。所有修复体均采用纯钛复制铣削和电火花加工制作（Procera技术，诺贝尔制药公司，瑞典哥德堡）。根据临床随访结果，计算了Kaplan-Meier生存函数。40颗金属牙冠和桥体的生存率为100%。在107个烤瓷熔附金属单元中，与去除相关的3年生存率为95%。当将生存情况与完整的陶瓷贴面相关联时，烤瓷熔附金属单元的3年生存率为84%。通过加利福尼亚牙科协会的评级系统评估，修复体的质量在绝大多数情况下被认为是令人满意的。可以得出结论，加工钛修复体适用于临床使用，尽管并非所有问题，特别是金属陶瓷领域的问题尚未完全解决。
