老年烤瓷牙修复失败的高危因素分析

目的了解和分析老年人后牙金属烤瓷冠修复失败的原因，提高修复的成功率与质量。方法通过分析我科收治的老年人金属烤瓷113颗因金属烤瓷体修复后出现问题导致修复失败的复诊患者进行分析，总结高危因素及应对措施。结果老年人烤瓷牙修复失败因素为：烤瓷全冠及桩冠松动脱落比例分别为53．1％、34．4％，均高于烤瓷桥脱落率12．5％，多个单位烤瓷桥未发生脱落。1年内修复失败原因类型及分布：瓷冠松动脱落、基牙病变分别占13．3％，其次分别为崩瓷8．0％、牙龈变色5．3％、食物嵌塞4．4％、桥体断裂2．7％等。结论应采取多种有效的预防措施提高老年人金属烤瓷冠修复成功率。

The High Risk Factors of Porcelain Tooth Repair Failure in the Elderly

Objective To investigate the main factors and clinical measures for failure of porcelain tooth in the old population. Methods Through the analysis of the 108 elderly patients with porcelain tooth failure, 108 elderly patients with porcelain tooth failure were analyzed retrospectively to understand the main factors. Results The old porcelain tooth repair failure for all f~tors： ceramic restorations crowns and pile crown mobility ratio falls off were 53.1%, 34.4%, and were higher than the 12.5% rate of ceramic restorations bridges. Some ceramic restorations bridge did not fall off. 1 years repair failure types and distribution were ： porcelain crown mobility falls off and the dental disease was 13.3%, the second was 8.0% respectively, gingival discoloration porcelain collapse 5.3%, 4.4%, bridge plug food impaction fracture 2.7%, etc. Conclusion By improving tooth preparation gingival retraction impression production try-on adhesion can be very good to prevent the failure.