The Clinical Evalution Of IRoot SP Combined With Single-cone Obturation For Chronic Pulpitis Applied In One-visit Root Canal Therapy

Objective: To assess clinical efficacy of iRoot SP based on single-cone therapy,this research made a comparison between diversity of iRoot SP based on single-cone therapy and cold lateral condensation in the single-visit root canal treatment,which included the operation time,filling quality and the occurrence rate of emergency.Methods: All of 24 patients who diagnosed with chronic pulpitis at department of stomatology,affiliated Hospital of Yanbian University from December,2020 to March,2022 were randomly divided into experimental group and control group according to the treatment sequence,which involved 30 single-rooted teeth.After local anesthesia,access cavity preparation,remove the chamber roof,establish straight-line access of the root canal systems,confirm patency and determin working length using an electrical apex locator.17% EDTA combined with Wave One nickel titanium instrument was applied to clean and shape the root canal system.After root canal system preparation,dry the canal throughout,then,obturate with sealer and matched-taper gutta-percha points.When filling the root canal,the experimental group used iRoot SP combined with the single-cone obturation and the control group used iRoot SP combined with cold lateral condensation for obturation.Finally,a coronal seal was established with an adequate provisional restoration.Record the time of operation for obturation(from placing the sealer to remove at the orifice with heat);evaluate the quality of obturation;observe the post-operative pain within a week and inform the patients of the possibility of complications to make it mentally prepared.Results:1.In terms of filling time,the average time of filling root canal by iRoot SP combined with the single-cone obturation was 104.18±21.16 s,and the time of filling root canal by iRoot SP combined with cold lateral condensation was 357.84±24.40 s,and the difference between the two groups was statistically significant(***P<0.001).2.In terms of filling quality,the filling accuracy of iRoot SP combined with the single-cone obturation was 100%,and the filling accuracy rate of iRoot SP combined with cold lateral condensation was 93.33%,and the difference between the two groups was not statistically significant(P>0.05).3.In terms of pain incidence,the total pain incidence rate among all samples was6.67% in a week after root canal filling.No pain occurred after iRoot SP combined with the single-cone obturation,and the pain incidence rate after iRoot SP combined with cold lateral condensation was 13.33%,and the difference between the two groups was not statistically significant(P>0.05);in terms of pain degree after root canal filling,the difference between the two groups was not statistically significant.Conclusion:1.After comparing iRoot SP combined with the single-cone obturation with iRoot SP combined with cold lateral condensation of the one-visit root canal therapy,there was no obvious difference in pain rate and pain intensity and root canal filling quality within a week,but in terms of root canal filling time,the single-cone obturation operation time was significantly shorter.2.For patients with chronic pulpitis,iRoot SP single-cone obturation could be selected for one-visit root canal therapy to reduce the time of patient visits and improve the efficiency of operation.