Scenning electron microscopy (SEM) assessment of tubular penetration depth of root canal sealers combined with different obturation techniques

Background/Aim. The ability to effectively and consistently penetrate into dentinal tubules is considered as a favorable factor of root canal sealers RCS). aim the study was assess penetration depth three RCS combined with four obturation techniques. Methods. Mesial canals 66 extracted human mandibular molars were endodontically prepared randomly allocated 12 experimental groups depending on sealer type used (AH Plus, EndoREZ, Sealapex) technique applied (Cold Lateral compaction, Cone-Fit, Carrier-based, Warm Vertical compaction). Using scanning electron microscopy (SEM), transversal cross-sections analyzed maximum measured (396 sections in total corresponded apical, middle coronary third). Results. Group AH Plus/Warm compaction yielded highest - 1,165 ?m, followed by EndoREZ/Cone-Fit 1,154 ?m; lowest for EndoREZ/Warm 502 ?m. thirds (common mean value) 1,204 1,005 ?m apical 770 plus penetrated deeper when techniques heated gutta-percha applied, while opposite findings obtained EndoREZ. Conclusion. appears be influenced used, well applied.