铸造桩核在残根残冠牙体修复中的临床应用

目的 :探讨铸造桩核在残根残冠修复中的临床应用效果。方法:对 14 8例 2 74颗经过完善根管治疗的残根残冠进行根管和 4 5°圆台式根面预备后 ,用嵌体蜡制取蜡桩和蜡核 ,经包埋铸造、打磨试戴后粘固 ,最后采用烤瓷冠修复外形。结果:对 14 8例患者进行追踪观察 0 .5～ 2年 ,修复成功 2 6 6颗 ,失败 8颗 ,其中根管折裂 4例 ,松动脱落 4例。 结论:随着铸造桩核的应用 ,残根残冠将得到尽可能的保留 ,使患者不仅免除了拔牙的痛苦 ,而且还可以获得优良的咀嚼效能。

Clinical analyses on appling of cast-post-core to residual roots and crowns prostheses

Objective: To study and analysis the clinical effects of the application of cast-post-core to denture prostheses. Methods: 274 residual roots and crowns from 148 patients were treated in this study,took direct way in oral to make wax post and core,then,use PFM crow to restore tooth form. Results: 148 patients were followed up for 0.5~2 years,the successful rate of the restoration was 97.1%. The methods achieved satisfactory effects. Conclusions: It is of important value that patients's residual roots and crowns were not pull down. With the application of cast-post-core,the patient will reduce the pain of being pulled tooth and improve masticatory ability.