AbstractObjective To investigate the clinical effect of one-time canal therapy and multiple root canal therapy in patients with chronic periapical periodontitis.Methods A total of 98 cases of chronic periapical periodontitis were selected from February 2016 to February 2017.According the random digital table method,they were divided into experimental group and reference group,49 cases in each group.The patients in the control group were treated with multiple root canal therapy,while the patients in the experimental group were treated with one-time root canal therapy.The incidence of 7 d pain and the effect of periapical periodontal treatment in the two groups were compared.Results On the 7 day after operation,there was no grade 3 pain in the two groups.The total incidence of postoperative pain in the experimental group and the control group was 16.3%and 18.4%,respectively.There was no significant difference in the incidence of pain between the two groups(P＞0.05).One year after operation,40 cases were cured and 7 cases were effective in the experimental group,the total effective rate was 95.9%in the control group;40 cases were cured and 7 cases were effective in the reference group,and the total effective rate was 93.9%.There was no significant difference in the total effective rate between the two groups (P＞0.05).Conclusion The clinical effect and postoperative pain in patients with chronic apical periapical periodontitis are similar to that of multiple root canal therapy,but one-time root therapy can reduce the number of visits and shorten the time of treatment.It is worth popularizing in clinic.
XU Hai-hong,FENG Lian. Comparison of the efficacy of one-time and multiple root canals in the treatment of chronic periapical periodontitis[J]. 中国当代医药, 2018, 25(22): 60-62.
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