The effect of smear layer removal on E. faecalis leakage and bond strength of four resin-based root canal sealers.

Background: The aim of the study was to assess bacterial sealability and bonding ability of methacrylate-based Resilon (RS, SybronEndo), Endo Rez (ER, Ultradent Products Inc), and epoxy-based AH Plus (AH, Dentsply/DeTrey), MTA Fill Apex (MTAF, Angelus Soluções Odontológicas) root canal sealers, and the effect of the smear layer removal on the sealability.

Methods: One hundred thirty root segments were instrumented up to apical size #60 and rinsed with 2.5% NaOCl.

Quality of root canal filling performed by undergraduate students of odontology at Kaunas University of Medicine in Lithuania.

Inroduction: High-quality filling of root canals is one of indicators of successful endodontic treatment. However, poor-quality of the filling is still a common phenomenon in the work of general practitioners. Better training of dental students of modern odontology is possible solution of the problem.