Methods With zinc oxide eugenol cement and gutta-percha point,this therapy was used in treatment of labial teeth and bicuspid premolar abscess in 75 teeth of 56 cases.

• 方法采用氧化锌丁香油酚粘固剂及牙胶尖,对56例患者75颗根尖周脓肿进行一次性前牙及双尖牙根尖脓肿根管治疗法。