Datta A, Sandhu H S
Graded Specialist (Prosthodontics), 200 Military Dental Centre, C/o 56 APO, India.
Commandant, Command Military Dental Centre (Western Command), Chandimandir, Haryana, India.
Med J Armed Forces India. 2022 Sep;78(Suppl 1):S206-S212. doi: 10.1016/j.mjafi.2020.08.009. Epub 2020 Nov 3.
Fixed dental prostheses have been provided in the Armed Forces for a long time, yet definite evidence-based guidelines on the success and failure of different types of prostheses are currently lacking. A cross-sectional observational study was conducted as a step towards addressing this lacuna.
The study included 156 patients and 538 prostheses based on pre-established inclusion criteria. The types of prostheses that were evaluated included crowns, fixed partial dentures (FPDs), post and core restorations, dental implants and veneers. Visual, tactile and radiographic examination was used for evaluating the prostheses. Success, survival and failure of prostheses were evaluated, and the types of complications leading to the failure were also recorded. In addition, the oral hygiene status of the included patients was also evaluated using the Oral Hygiene Index-Simplified.
The overall failure rate in all prostheses combined together was 28.81%. The failure rate in cantilever FPDs was the highest at 44.44%. It was 16.67% in veneers, 35.37% in conventional FPDs, 23.81% in single crowns and 30.56% in all post and core restorations.
Barring the all-ceramic prostheses and fibre post and core restorations, the rate of occurrence of both complications and failures in the remaining categories of prostheses was higher than that mentioned in the literature.
长期以来，军队一直配备固定义齿，但目前缺乏关于不同类型义齿成败的确切循证指南。作为解决这一空白的第一步，开展了一项横断面观察性研究。
根据预先确定的纳入标准，该研究纳入了156名患者和538颗义齿。评估的义齿类型包括冠、固定局部义齿（FPD）、桩核修复体、牙种植体和贴面。采用视觉、触觉和影像学检查来评估义齿。评估义齿的成功、存活和失败情况，并记录导致失败的并发症类型。此外，还使用简化口腔卫生指数评估纳入患者的口腔卫生状况。
所有义齿的总体失败率为28.81%。悬臂式固定局部义齿的失败率最高，为44.44%。贴面的失败率为16.67%，传统固定局部义齿为35.37%，单冠为23.81%，所有桩核修复体为30.56%。
除全瓷义齿以及纤维桩核修复体外，其余各类义齿的并发症和失败发生率均高于文献报道。
