论文部分内容阅读
目的:观察不同就诊时间对外伤性露髓恒牙一次性根管治疗术后急症及远期疗效的影响。方法:选择因外伤露髓恒牙145例,患牙189颗,行一次性根管治疗术。按照伤后就诊时间不同,采用双盲法分为A、B、C 3组。其中A组伤后就诊时间<6h,就诊46例,患牙67颗;B组伤后就诊时间6～24h,就诊62例,患牙69颗;C组伤后就诊时间>24h,就诊37例,患牙53颗。术后1周和1年随访,比较3组急症发生情况及远期疗效。结果:(1)术后1周,A组急症发生率为6.0%(4/67),B组为15.9%(11/69),C组为39.6%(21/53)。A组和B组急症发生率均显著低于C组(P<0.05);A组与B组比较,差异不显著(P>0.05)。(2)术后1年,A、B、C 3组治疗成功率分别为98.5%、94.2%和79.2%。A组和B组治疗成功率均显著高于C组(P<0.05);A组与B组比较,差异不显著(P>0.05)。结论:外伤性露髓恒牙及时就诊,可减少急症发生,提高一次性根管治疗成功率。
Objective: To observe the effect of different treatment time on acute and long-term curative effect after traumatic unilateral root canal treatment. Methods: 145 cases of traumatic demyelinated permanent teeth were selected and 189 teeth were affected. One-time root canal therapy was performed. According to different time after injury treatment, using double-blind method is divided into A, B, C 3 group. Among them, the treatment time of group A was less than 6 hours, 46 cases were treated, and 67 cases were affected. The time of treatment in group B was 6-24 hours after injury, 62 cases were treated and 69 cases were affected. The treatment time in group C was> 24h and 37 cases were treated , 53 teeth suffering. After 1 week and 1 year follow-up, the occurrence and long-term efficacy of the three groups were compared. Results: (1) One week after operation, the incidence of acute illness in group A was 6.0% (4/67), that in group B was 15.9% (11/69) and that in group C was 39.6% (21/53). The incidence of acute illness in group A and group B was significantly lower than that in group C (P <0.05). There was no significant difference between group A and group B (P> 0.05). (2) One year after operation, the success rates of A, B and C treatment were 98.5%, 94.2% and 79.2% respectively. The success rates of treatment in group A and group B were significantly higher than those in group C (P <0.05). There was no significant difference between group A and group B (P> 0.05). Conclusion: The timely treatment of traumatic exposed decontaminated permanent teeth can reduce the incidence of acute and improve the success rate of one-time root canal therapy.