【摘要】 目的 :研究CPC修复髓室底穿孔的临床效果。方法 :将 6 8颗髓室底穿孔患牙随机分为CPC组 (46颗 )和对照组 (2 2颗 ) ,均先行根管治疗 ,然后穿孔处分别采用CPC和氢氧化钙充填修复 ,并作永久性充填 ,所有治疗牙均随访观察 18～ 2 4月。结果 :CPC组成功 43颗 ,失败 3颗 ,其疗效明显优于对照组 (P <0 .0 5 ) ;医源性和龋源性穿孔之间 ,其疗效无显著性差异 (P >0 .0 5 )。结论 :CPC是修复髓室底穿孔较好的一种材料 ,其疗效与穿孔大小有关更多还原

【Abstract】 Objective:To study the clinical effect of repairing perforations of pulp floor with calcium phosphate cement.Methods:68 teeth with perforations of pulp floor were divided into CPC group(46) and control group(22).All were first treated with root canal therapy and perforations were repaired with calcium phosphate cement or calcium hydroxide. All treated teeth were followed up for 18~24 months.Results:In the CPC group there were 43 successful teeth and 3 failed teeth, and its efficiency was superior to that of control group ( P <0.05).The difference of efficiency between the originated doctors and caries was not statistically significant ( P >0.05).There was no failed tooth both in A group and in B group, and their efficiency were all superior to that of C group( P <0.05).Conclusions:Calcium phosphate cement is considered to be a kind of better material for repairing perforation of pulp floor and its efficiency related to perforation diameter. [更多还原