Methods: Root curettage, retrofilling and apicoectomy were used to treat 77 teeth with apical diseases in 3 goups respectively. 方法:选择临床需行手术治疗老年根尖周病患者67例,患牙77颗,分3组分别采用根尖刮治术,根尖切除术或根尖倒充填术。
Methods Apicoectomy was performed immediately after the permanent root canal filling. 方法对慢性根尖瘘管进行常规根充后,即刻行根尖切除术。