Efficacy of two obturation techniques in experimental internal root resorption cavities

Introduction:The filling with obturation endodontic material in teeth with internal root resorption is extremely difficult.Objective:To evaluate the efficacy of two obturation techniques in the filling of experimental internal resorption cavities.Material and method:Twenty maxillary central incisors artificial, with the presence of a standardized simulated resorption cavity in the middle third of the root canal were used. After endodontic treatment of teeth, they were randomly divided into two groups (n=10), according to the obturation technique used: hybrid Tagger or with the aid of the ultrasonic system. Verification of endodontic obturation, with the cavity internal resorption, was taken by radiography with two types of incidence: mesiodistal and buccolingual. For the analysis of area closures, we used the Image Tool® program. The data of the filling were subjected to statistical analysis using Student's t test, with significance level of 5%.Result:There was no statistical difference between the tested obturation techniques. As one can observe a significant difference in teeth obturated with the aid of ultrasound, when compared to the radiograph performed in mesiodistal with buccolingual.Conclusion:The two obturation techniques tested were similar to fill the cavity of internal resorption.