Summary
The objective of this study was to observe if there are differences in the remaining filling material between unfilled teeth using contemporary clinical microscopy techniques and the XP-endo® system. Ex vivo experimental study. 40 extracted single-root teeth were treated by a single operator using the mechanized instrumentation technique suggested by the manufacturer (FKG): XP ENDO© System. and the sealing of the root canals using the synchronous hydraulic technique with gutta-percha and TOTALFILL©BC sealer (FKG) bioceramic cement. Two groups were randomly divided, and a single operator performed the deobturation with the same protocol in both groups, differing only in the vision technique used, with clinical optical microscopy (CM) and with direct vision (SM). The deobturation technique included Gates glidden burs, ENDO© XP System, solvent (Endosolv©), and manual H files to finish until clinically no obturation remnants were felt or observed within the canal. The teeth were cut longitudinally buccolingually into two halves. All samples were coded, photographed and transferred to a computer to perform morphometric analysis. The surfaces of the MO and S/MO groups were compared, observing the differences between them. 29.4 % of remaining obturation (cement and/or guttapercha) in the group deobturated without a microscope (SM) and 16.3 % in the group deobturated with a microscope (CM). There is a statistically significant difference in the percentage of remaining filling in the SM group compared to the CM group (p = 0.0198). Complete removal of cement or gutta-percha was not observed in either group. The use of the clinical microscope favors the removal of gutta-percha during endodontic retreatments.
KEY WORDS: desobturation, bioceramic cement, clinical microscopy.
How to cite this article
ANTINI, J. C.; PALMA, E. A. M.; RETAMAL, M. J.; TREJOS, N. P. & OSORIO, C. Ex-vivo evaluation of the deobturation efficiency of a bioceramic cement in endodontic retreatments: A clinical microscopic study. Int. J. Odontostomat., 19(1):79-84, 2025.
