铸造桩核临床应用观察

目的：探讨铸造桩核修复残根残冠以保留患牙的方法临床应用中，哪种方式有效延长患牙修复寿命保留患牙，预防根折的发生。方法：选择132例患者209颗前牙进行完善的根管治疗后，进行铸造桩核临床修复残冠残根。结合临床表现以及X线片检查随访观察5年，根据牙根折断或松动发生率和患者满意度来评价不同桩核修复牙体缺失的临床治疗效果。结果：结合临床和X线检查发现铸造桩核有3颗修复体出现牙根折断松动脱落。结论：铸造桩核不易折断和松动，造成根折的发生率明显低，且美学效果好，患者满意度高，是成品根管桩钉的良好替代品。

Observation of the clinical application of the casting post

Objective： To investigate the way to effectively extend the longevity of the restoration for retaining the offending tooth and prevent the occurrence of the dental root fracture during the clinical application of the casting post to repairing the residual roots and crowns for retaining the ill tooth. Methods： 209 anterior teeth in 132 patients were performed casting post to clinically repair the residual roots and crowns after complete root canal therapy. Combined with the clinical manifestation, Xray results and 5 year follow up, the clinical therapeutic effect of tooth deficiency repaired by different post and core based on the occurrence rate of dental root fracture and loosening, and the satisfaction degree of the patients were evaluated. Results： The clinical manifestation and Xray results showed that loose, dental root fracture and falling existed in 3 prostheses, Conclusion： Casting post is not easy to break and loosen, the occurrence rate of dental root fracture is low. Besides, it gains better aesthetic effect and high satisfaction degree of the patients. It is the good substitute for finished product of root canal and posts.