后牙根管治疗后的疼痛观察

Observation of pain management in root canal therapy of posterior teeth.

目的观察不同方法进行后牙根管治疗时术中及术后的疼痛反应。方法选择急慢性牙髓炎,死髓牙患牙400颗,随机分为两组,A组和B组。A组根管预备,然后用碧兰糊剂加牙胶尖进行根管充填。B组根管预备后氧化锌丁香油糊剂(ZNO)加牙胶尖根管充填,观察两组术后疼痛反应。结果A组根管充填术后疼痛反应发生率明显低于B组(P<0.05)。结论用碧兰糊剂根管充填可有效减轻术后疼痛反应。

Objective To assess the effectiveness of different methods in reducing pain associated with root canal therapy of posterior teeth, Methods Four hundred of cases with acute endodontitis, chronic endodontitis or necrotic pulp were selected in this study, The cases were assigned randomly as group A and group B. After root canal being prepared, it was filled with cortisomol in group A and zinc oxide in group B. The change of pain level during and after root canal therapy was evaluated. Results The occurrence rate of pain in the group using cortisonrol was lower than that in the group with zinc oxide （ P 〈 0.05 ）. Conclusion Root canal filling with cortisomol may reduce pain associated with root canal therapy.