老年烤瓷牙修复失败的高危因素分析(1)
 |
| 第1页 |
参见附件(2930KB，3页)。
[摘要] 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。
[关键词] 老年人；金属烤瓷冠；修复失败
[中图分类号] R783.4 [文献标识码] B [文章编号] 1673-9701(2011)35-42-02
The High Risk Factors of Porcelain Tooth Repair Failure in the Elderly
CHEN Jianshe
Department of Stomatology, the Compatriots in Taiwan Geneva Cross Hospital of Xiangshan County in Zhejiang Province, Xiangshan 315731, China
[Abstract] 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 factors: 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.
[Key words] Old people; Ceramometal crown; Repair failure
金属烤瓷冠修复体具有强度高，逼真，色泽稳定，抗磨损，边缘闭合性好及较好的生物相容性等优点，已在临床中义齿修复中获得广泛应有[1]。随着经济发展、医疗技术的提高及老年人失牙率的大幅降低，活动义齿的优势得到一致认可，老年人也更加容易接受金属烤瓷牙，因此，金属烤瓷冠修复在老年义齿修复中也得到普及[2]。但鉴于老年人生理特征的特殊性，对修复的设计原则、制作过程要求更高[3]。本组研究中通过对金属烤瓷冠修复失败病例的分析，旨在探讨老年人金属烤瓷牙修复失败的相关因素及临床应对策略，报道如下。
1 资料与方法
1.1 一般资料
2009年2月~2011年3月我科收治的老年人金属烤瓷病例108例，共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，均确诊为修复失败。其中，102例为牙烤瓷镍铬合金，11例为烤瓷金钯合金。男63例，女45例，年龄60.6～81.2岁，平均年龄(67.4±7.9)岁。所有患者术前残根、残冠均无松动，均无牙周炎病变，牙根完好无根折，进行良好的根管治疗；通过X光片证实残根、残冠断端均无根尖病变，且根长大于冠长，可进行金属烤瓷冠修复。
1.2 材料 ......
您现在查看是摘要介绍页，详见PDF附件(2930KB，3页)。