氢氧化钙预防根管治疗术后疼痛的临床观察

目的评价氢氧化钙作为根管内药物预防根管治疗术后疼痛的效果。方法选择90颗牙髓坏死的前磨牙,将其随机分为A、B、C组,每组30颗牙。A组患牙1次完成根管治疗;B组患牙2次完成根管治疗,但约诊期间根管内不封任何药物;C组患牙2次完成根管治疗,但约诊期间根管内封Ca(OH)2糊剂。采用改良10点视觉模拟量表对患者根管治疗后疼痛的严重程度进行评价,比较3组患者根管治疗后的疼痛水平。结果A组与B组、B组与C组患者根管治疗术后疼痛的差异有统计学意义(P<0.05),A组与C组患者根管治疗术后疼痛的差异无统计学意义(P>0.05)。结论氢氧化钙作为根管内封药可有效预防根管充填后疼痛的发生。

Clinical effect of calcium hydroxide as an intracanal medication on post-endodontic treatment pain

Objective The aim of this study was to evaluate the incidence of pain after pulp canal therapy of pulp necrosis teeth using calcium hydroxide as an intracanal dressing.Methods Ninety single-root necrotic premolars of 90 patients participated in this study.These teeth were randomly divided into three groups of 30 teeth. The teeth in group A were treated in a single-visit approach,the teeth in group B with a two-visit approach without any intracanal dressing and the teeth in group C with a two-visit approach using calcium hydroxide as an intracanal dressing.All of the patients were followed for 72 hours after treatment.The data were analyzed by chisquare test.Results There were significant difference between group A and group B,group B and group C(P< 0.05).There was no significant difference between group A and group C(P>0.05).Conclusion Calcium hydroxide can decrease painful responses to endodontic treatments.