常温流动牙胶在充填后牙弯曲根管中的疗效观察

Application of Gutta Flow in curved canals of posterior teeth

目的观察常温流动牙胶充填后牙弯曲根管的临床效果。方法选取需根管治疗的后牙弯曲根管120颗,采用随机盲法将其分为常温流动牙胶组(Gutta Flow组)、热牙胶组及冷侧压组,每组各40颗。观察根充所需时间、根充质量、术后1周疼痛反应及1年后治愈率。结果 GuttaFlow组较冷侧压组根充时间短、术后1周疼痛发生率低、根管恰填率高及1年后治愈率高(P <0.05);Gutta Flow组与热牙胶组比较,差异无统计学意义(P>0.05);热牙胶组与冷侧压组术后疼痛率比较,差异无统计学意义(P>0.05),而其他方面比较,差异有统计学意义(P <0.05)。结论在后牙弯曲根管充填中,常温流动牙胶充填术和热牙胶充填术优于冷牙胶侧方加压充填术,常温流动牙胶组术后疼痛的发生率低、治疗效果更好,值得临床推广。

Objective To evaluate the clinical efficacy of Gutta Flow on curved canals of posterior-teeth.Methods A total of 120 posterior teeth with curved canals that received root canal treatment were included in this study.The teeth were randomly divided into 3 groups(n=40):Gutta Flow obturation group,vertically compacted thermos-plasticized group and laterally condensed obturation group.Filling time,quality of root canal filling according to X-ray photos,pain within 1 week after treatment and curative effects at the first year posttreatment were recorded.Results Patients in Gutta Flow group experienced decreased filling time,lower rate of postoperative pain within 1 week and higher rate of adequate and successful root canal filling when compared with those in laterally condensed obturation group(P<0.05).No statistically significant difference was observed between Gutta Flow group and the vertically compacted thermos-plasticized group(P>0.05).Dramatically improved therapeutic effect was observed in vertically compacted thermos-plasticized group except postoperative pain when compared with laterally condensed group and the Gutta Flow obturation group(P<0.05).Conclusions Gutta Flow obturation and vertically compacted thermos-plasticized obturation exerts better outcome with less postoperative pain.