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

摘要:

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。

Abstract:

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.