Clinical Observation of Complication and Curative Effect of One Time Root Canal Treatment for Acute Periapical Periodontitis in Anterior Teeth

Objective To explore if one time root canal therapy has a better effectiveness than conventional root canal therapy in treating acute periapical periodontitis of anterior teeth.Methods A total of 140 patients with acute periapical periodontitis of anterior teeth were randomly divided into two groups.Each group had 70 patients in it.They were treated respectively by one time root canal therapy and conventional root canal therapy.The complications were observed in the patients after one day's and five day's treatment.Their therapeutic effects were compared according to clinical symptoms and X-ray examination one year after treatment.Results The incidence of complication of one time root canal therapy was higher than that of conventional root canal therapy after one day's treatment(P0.05).The therapeutic effect of one time root canal was better than that of conventional root canal therapy after five day's treatment,but the curative effects by both methods had no significant difference after one year(P0.05).Conclusion Both of conventional root canal therapy and one time root canal therapy can be adopted in treating acute periapical periodontitis of anterior teeth.One time root canal therapy must be carefully employed.