Evaluación de la microfiltración apical con cuatro técnicas de obturación : estudio in vitro.

Abstract

Introduction: Microfiltration is the fluids passage and bacteria along the interface of the root dentine walls and the filling material or through spaces within the material itself, because there is a potential communication between the pulp and periapical space This may occur due to poor adaptation of the seal, solubility of the sealing cement and contraction of the root filling during the setting reaction. Objective: Determine the efficacy of the sealing techniques in relation to apical microfiltration. Materials and Methods: An experimental in vitro study wasconducted in which 60 endodontic and sealed human teeth with lateral condensation technique, single cone, continuous wave and thermoplastic guttapercha with a solid core with two cements AH Plus and GuttaFlow were analyzed. Results: It was determined that the technique with the highest incidence of apical microfiltration was the CL with 79% of microfiltered pieces at 4 mm, while the technique that gave us the lowest percentage of microfiltration was the OC technique with 36% the technique of G with 29% with 1 mm microfiltration. Conclusion: All duct filling techniques have a degree of apical microfiltration.