ASSESSMENT OF ROOT CANAL OBTURATION AND THE ADHESION OF ENDODONTIC SEALERS TO THE DENTIN WALLS OF THE ROOT
DOI:
https://doi.org/10.22551/MSJ.2026.02.21Abstract
This study aims to compare the quality of root canal obturation achieved using different obturation techniques and to evaluate the adaptation of the interface between epoxy resin- based sealants and gutta-percha to the dentin walls of the root canal. Materials and methods: Thirty-six extracted single-rooted human teeth were used, prepared according to a standardized protocol and filled with gutta-percha using different techniques (lateral condensation and vertical hot condensation), to evaluate, through radiological analysis (retro-dento-alveolar radiography) and optical microscopy, the following aspects: the quality and homogeneity of the root fillings, the adhesion of the sealer to the dentin root walls, and the apical and coronal seal of the endodontic filling. The data were statistically analyzed to identify differences between techniques (p < 0.05), using the F-test and ANOVA. Results: Radiographic analysis revealed significant differences in the homogeneity of the filling and the presence of voids between techniques, with vertical hot condensation yielding the best results, particularly in the apical third. Optical microscopy confirmed better adaptation of the sealants in the case of thermoplasticized gutta-percha techniques, while lateral condensation showed a higher incidence of marginal voids at the apical level. Conclusions: The obturation technique significantly influences the quality of root canal obturation. Vertical hot condensation ensures homogeneity and optimal adaptation. Combined radiographic and optical microscopy evaluation provides a comprehensive method for assessing obturation results.
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