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目的探讨连续波热牙胶垂直加压法在后牙弯曲根管治疗中的应用价值。方法应用冷牙胶侧方加压法充填后牙弯曲根管的42例患者作为对照组,将应用连续波热牙胶垂直加压法充填后牙弯曲根管的65例患者作为试验组。比较两组患者根充时间、根充恰填率、侧枝根管充填率以及随访1年后的成功率。结果试验组患者的根充时间少于对照组,比较差异具有统计学意义(P<0.05);试验组患者根充恰填率为93.8%,对照组患者根充恰填率为78.6%,比较差异有统计学意义(P<0.05);试验组患者侧枝根管充填率为13.8%,对照组患者侧枝根管充填率为2.4%,比较差异具有统计学意义(P<0.05);随访1年后,试验组患者成功率为92.3%,对照组患者成功率为71.4%,比较差异具有统计学意义(P<0.05)。结论连续波热牙胶垂直加压法较冷牙胶侧方加压法治疗时间短、充填效果更加理想,远期临床疗效稳定,是进行后牙弯曲根管治疗的最佳方法 ,值得推广。
Objective To investigate the value of continuous hot dental adhesive vertical compression in root canal treatment of curved tooth root canal. Methods Twenty-four patients with curved root canals filled with cold-toothed lateral pressure were used as the control group. Totally 65 patients with posterior teeth root canal curving were implanted with continuous hot-melt adhesive. The time of root filling, the filling rate of root filling, the filling rate of collateral canals, and the success rate of one year after follow-up were compared between the two groups. Results The root-filling time of the test group was less than that of the control group (P <0.05). The filling rate of the root-filling group was 93.8% in the test group and that of the control group was 78.6% (P <0.05). The filling rate of lateral branch root canal in experimental group was 13.8%, while that of control group was 2.4%, the difference was statistically significant (P <0.05). The follow-up period was 1 year After the trial, the successful rate was 92.3% in the trial group and 71.4% in the control group, the difference was statistically significant (P <0.05). CONCLUSION: The continuous hot-melt adhesive removal method has the advantages of short treatment time, better filling effect and stable clinical effect in the long-term. It is the best method for root canal treatment of curved posterior teeth and should be popularized.