恒前牙冠折露髓部分切髓术的疗效分析

目的：观察恒前牙冠折露髓部分切髓术的疗效。方法：选择26例31牙外伤冠折不超过72h的恒前牙，进行部分冠髓切除术。分别于术后15d、1个月、3个月、6个月、1年、2年进行临床和X线检查。结果：成功29牙，失败2牙，成功率93．5％。失败原因为根管内吸收和暂补料脱落再感染。结论：冠髓部分切除术较根管口部分活髓切断术有许多优点，是一种良好的治疗方法。临床上需严格掌握适应证和操作规程，以提高成功率。

Analysis of curative effect of partial pulpotomy of exposed pulp of permanent anterior tooth with fracture of crown

AIM: To observe the effect of partial pulpotomy of exposed pulp of permanent anterior tooth after fracturc of crown. METHODS:26 cases(31 fractured teeth) form 8 to 45 years were undergone partial pulpotomy within 72 hours after fracture of crown. They were examined with clinical methods and X-ray 15 days, one month, three months, six months, one year and two years after operation respectively. RESULTS: 29 teeth were successful while 2 failed, with success rate of 93.5%. Failure was caused by absorption in root and reinfection after loss of temporary sealing agent. CONCLUSION:Partial pulpotomy for crown pulp is a better method.