【摘要】 目的 :观察恒前牙冠折露髓部分切髓术的疗效。方法 :选择 2 6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 2 9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。更多还原

【Abstract】 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.更多还原