单根管与多根管铸造桩核用于磨牙残冠修复的比较研究

目的比较单根管与多根管铸造桩核冠修复磨牙残冠的临床效果。方法选择140例患者的153颗磨牙残冠,在修复前行完善的根管治疗,其中92颗采用单根管整体铸造桩核冠修复,61颗采用插销式铸造的多根管桩核冠修复。对修复后两年的复查结果进行临床效果评价。结果单根管固位修复体桩核松动1个,其余桩核X线片显示桩核与根管结合紧密,修复效果良好。多根管分体插销式铸造桩核冠无松动。修复的临床效果无显著性差异(P>0.05)。结论采用单根管铸造桩核修复磨牙残冠不仅制作简单,而且与多根管分体桩核修复无显著性差异,同样可取得良好的临床效果。

Comparative study of defected molar restored by cast post-core in single root canal or multiple root canals

Objective To compare the clinical effects of defected molar restored by cast post-core in single root canal or multiple root canals.Methods Selected 153 residual crown or root molars of 140 patients which had been made complete root canal treatment,including 92 teeth restored by a whole cast post-core crowns in single-root canal,61 restored by bolt cast post-core crowns in multiple root canals.Reviewed the results of the clinical effects after two years of restoration.Results We discovered movement in one tooth which be fixed by single root canal post-core crown,and observed that other teeth did not move and had a close integration with the root canals.Teeth restored by bolt cast post-core crowns in multiple root canals had no movement.The clinical effects of repair had no significant difference（P0.05）.Conclusion It is well simple way that using cast post-core crown in single-root canal to restore defected molar.It has no significant difference with multiple root canal post-core.The same can be achieved good clinical effects.