金瓷冠桥失败原因分析  

Analysis of the Unsuccessful Cases of the Porcelain-fused-to-metal-crowns and Bridges

作　　者：翟丽云[1] 赵玉珍[1] 王少萍[1] 杨月华[1] 

机构地区：[1]天津市口腔医院修复科,天津300041

出　　处：《华西口腔医学杂志》2005年第3期231-232,共2页West China Journal of Stomatology

摘　　要：目的探讨金瓷冠桥失败的原因及预防方法。方法对1994～2001年在天津市口腔医院修复科行金瓷全冠、核桩金瓷全冠、金瓷固定桥修复的70例患者的80件修复体的失败原因进行分析。结果80件修复体的失败原因中,崩瓷68个,核桩松动或脱落20个,食物嵌塞3个、颜色不协调6个、基牙折断3个、牙龈变色2个。结论临床上应避免干扰、早接触、牙体预备不当、瓷层厚度不均匀、根管预备长度和直径不足、食物嵌塞、咬硬物等,从而预防金瓷冠桥修复失败。Objective To discuss the unsuccessful reasons and the preventive methods of the unsuccessful clinic cases. Methods The retrospective analysis was carried on the 80 prosthesis in 70 patients from 1994 to 2001 which were suffered with unsuccessful results after the restoration of the metal crowns and bridges. Results There were 68 teeth which had collapsed or broken. 20 teeth had the post loosing or shedding. Root breaking, food impaction, unharmony colors of porcelain and the changing color of gingival were 3,3,6 and 2 teeth. Conclusion It is necessary to select suitable repairing materials and operate correctly for preventing the occurring of the unsuccessful results in the porcelain_fused_to_metal_corwns and bridges.

关 键 词：金瓷全冠 核桩 失败原因 

分 类 号：R783.3[医药卫生—口腔医学]