One-visit Endodontic Treatment of Teeth with Chronic Periapical Periodontitis

Objective To evaluate the effect of one-visit endodontic treatment on chronic periapical periodontitis.Methods Eighty teeth with chronic periapical periodontitis were randomly divided into one-visit root canal treatment group and two-visit root canal treatment group.The root canals were prepared with modified double-flared technique and balanced force technique.Teeth in one-visit root canal treatment group were filled with gutta-percha and AHPLUS sealer by using lateral condensation technique.Teeth in two-visit root canal treatment group were medicated with calcium hydroxide.Patients were reviewed for pain 1,7 and 30 days after treatment.Clinical and radiographic examination was performed 1 year after treatment.The success rate of root canal treatment was compared between the two groups.Results The incidence of pain on postoperative day 1 in one-visit root canal treatment group was significantly higher than that in two-visit root canal treatment group(P0.05).There were no statistical differences in long-term follow-up evaluation between the two groups(90.0% vs 92.5%,P0.05).Conclusion One-visit endodontic treatment can shorten the duration of pain in chronic periapical periodontitis.