改良失活法在牙髓炎疼痛控制中的临床效果

The clinical study on the effect of pain controlling on pulpitis with modified dental pulp devitalization

目的:比较改进多聚甲醛牙髓失活法与传统失活法的临床效果,并观察其在60岁以上老年人的效果差异。方法:观察两种方法在A、B两个年龄组间牙髓失活时疼痛发生率、牙龈坏死、所封失活剂能否被完整取出、牙髓失活效果以及去除冠髓时牙髓出血情况,并作统计学分析。结果:两个年龄组改良方法疼痛发生率均低于传统方法(P<0.01)。A组改良法失活效果优于传统法(P<0.01);B组改良法与传统法差异无显著性(P>0.05)。改良法失活剂完整取出率高于传统法(P<0.01);两个年龄组间差异均无显著性(P>0.05)。各组均没有牙龈坏死情况。结论:改良法优于传统法。可以有效提高牙髓失活效果,降低疼痛等并发症的发生,缩短患牙的疗程。

Objective： To compare the clinical effect of dental pulp devitalization with polyoxymethyleni and modified method respectively in two groups of patients with different age. Methods： The pain incidence and the effect of pulp devitalization were recorded; the pulp bleeding rate and whether the paste could be removed completely were checked. Meanwhile, the gingival necrosis due to polyoxymethyleni was measured. Results： The pain incidence of modified method in both groups was lower than those of the traditional one （P〈0.01）. The effect of pulp devitalization of the modified method in both groups was better than that of the traditional onein group A but not in group B （P〉0.05）. The rate of integral removal of the agent was higher in group A than in group B （P〈0.01）, but there was no difference between the different age groups. There was no gingival necrosis in both groups due to polyoxymethyleni divulgence. Conclusion： Compared with traditional method, the modified one was safe. It can improce the effect of dental pulp devitalization and reduce the pain durating rate.