Intratubular Sealer Penetration: Scanning Electron Microscopy Associated with Cathodoluminescence Analysis.

Aim: The aim of the study was to compare the ability of three endodontic sealers, Endofill (END), AH Plus (AHP), and Sealer Plus BC (SPB), to penetrate dentinal tubules.

Materials And Methods: Forty-five human teeth, single-rooted and previously instrumented mandibular premolars, were randomly divided into three experimental groups ( = 15): END ( = 15), AHP ( = 15), and SPB ( = 15). After obturation, dental sections were performed horizontally, at 2 and 5 mm from the root apex.