Comparative study of the effectiveness of methods of root canals filling with cold high-flow gutta-percha in the experiment

Abstract

Objective: Assessment of the quality of root canal obstruction by the method of cold high-flowing gutta-percha in comparison with standard methods of filling. Methods: In vitro experiment on 60 extracted teeth with one root canal. In 20 teeth, the canals were obturated by lateral condensation of gutta-percha, in 20 – by a central conical pin, and in another 20 – fluid cold gutta-percha with a gutta-percha pin. Visiography was performed, then after polymerization of the sealer, the root was sawn in the transverse direction and the quality of the filling was evaluated using digital microscopy. Results: In the first two groups, satisfactory results were obtained with a homogeneous filling of the lumen of the root canal. In the third group, unsatisfactory results were obtained in 65 % of cases: lack of sealer in the middle and apical parts of the canal, filling defects. Conclusions: The technique of lateral condensation of gutta-percha and the method of filling with a conical central pin with a polymer endo sealer significantly exceed the quality of filling cold high-flowing gutta-percha.