银汞桩核全冠修复后牙缺损的临床评价

目的：观察银汞桩核全冠在修复后牙缺损中的效果。方法：对55例患者60颗经过完善根管治疗的后牙采用银汞桩核全冠修复,进行12～24个月的临床随访和摄片,观察临床效果。结果：有2例患者2颗患牙因牙根纵裂、牙冠脱落而拔除,其余修复效果良好,治疗有效率达96.6%。结论：银汞桩核全冠用于后牙缺损的修复安全、可靠。

Clinical evaluation on amalgam post-core complete crown for posterior teeth restoration

Objective： To evaluate the clinical application of amalgam post -core crown for posterior teeth restoration. Methods： Fifty five patients and sixty endodontically treated posterior teeth were selected in this study. All this teeth were restored with amalgam post-core complete crown. Patients were followed up for 12 to 24 months. The further consultations were offered to these teeth with examination and radiographs after 12～24 months. Results： In this case, 96.6% of crowns and amalgam post -cores were doing function well with no exhibiting after 24 months, two teeth had deleted for root cracked. Conclusion： Amalgam post-core complete crown is preferable to preserve endodontically treated posterior teeth.