自固化磷酸钙人工骨应用于可能超填根管的临床研究

Clinical research on autosolidifying calcium phosphate cement in treatment of the root canal might be ultra-filled

目的评价自固化磷酸钙人工骨(CPC)对可能超填根管的临床疗效。方法根管预备30号、35号扩大针无阻力穿出根尖孔患牙125颗,共180个牙根。随机分两组,A组:充填CPC及牙胶尖;B组:充填氢氧化钙碘仿糊剂加牙胶尖。充填后X线片观察超填情况,对超填者充填后1周、3个月、6个月的临床表现进行观察。结果超填度评分A组为1.78,B组为1.64,两组比较无统计学意义(P>0.05)。超填后1周、3个月、6个月疗效评价有高度统计学意义(P<0.01)。结论根管可能超填病例,用CPC根充更理想。

Objective To investigate the clinical efficacy of autosolidifying calcium phosphate cement （CPC） in treatment of the root canals might be uhra-filled. Methods In root canal preparation, there were 125 teeth, a total of 180 roots which were pierced through the apical foramen with no resistance using No.30 and No.35 root canal reamer. These teeth were randomly divided into two groups. Group A： root canals were filled with CPC and gutta-percha, group B： root canals were filled with calcium hydroxide iodoform paste and gutta-percha. After filling, the X-ray films were observed over all the roots. The over-filled roots were observed of clinical performance respectively after 1 week, 3 months, 6 months. Results The ultra-filled score mean： group A was 1.78, and group B was 1.64. There was no significant difference between the two groups （/9 〉 0.05）. After filling over 1 week, 3 months, 6 months, there were statistical differences in efficacy evaluation （P 〈 0.01）. Conclusion Using CPC to fill the roots which was pierced through the apical foramen （roots may be over- filled） is more ideal.