Comparative evaluation of unintentional extrusion of gutta-percha versus sealer on teeth presenting periapical radiolucency: a retrospective radiographic study on treatment outcome

AbstractObjective:The purpose of this study is the radiographic evaluation of endodontically treated teeth presenting periapical radiolucency and unintentional overfilling with gutta-percha or sealer on treatment outcome and persistence of the extruded materials.Materials and Methods: After assessment using periapical index (PAI), 202 roots filled with gutta-percha and Roth 811 sealer, exhibiting unintentional overfilling and periapical radiolucency were selected. All cases had at least 1 year follow-up. Type of extruded material, periapical status, and removal/persistence of the extruded material were evaluated. Data were statistically analyzed using logistic and linear regression analysis.Results:Tooth location, follow-up period and type of the extruded material were the only factors that significantly affected the outcome (p<0.05). The persistence of extruded material was significantly affected by its type and the recall time (p<0.05).Conclusions:It can be concluded that posterior roots, overfilling with sealer compared to gutta-percha and cases with long recall period present a significantly better rate of complete healing.