Light emitting diode assessment of dentinal microcracks after root canal preparation with 4 different heat-treated file systems.

Background: The purpose of this research was to evaluate the dentinal microcracks formation after root canal preparation with Hyflex EDM ([electrical discharge machining], Coltene; Altstätten, Switzerland), Neolix Neoniti A1 EDM (Neolix; Beijing, China), Wave One Gold (Dentsply Sirona; York, PA, USA) and Edge File X1 (EdgeEndo; Albuquerque, NM, USA) under illumination and magnification.

Methods: One hundred fifty mandibular molars with 2 different mesial canals extracted for periodontal reasons were included in the study. The samples were decoronated at 15 mm from the apex using a carborundum disc under copious water cooling.

Cysteamine improves the bactericidal efficacy of intra-canal medicaments against Enterococcus faecalis.

Aim: The aim of this study was to compare the antimicrobial efficacy of cysteamine, calcium hydroxide[Ca(OH)2], triple antibiotic paste (TAP), chlorhexidine (CHX) and their combinations against Enterococcus faecalis (E. Faecalis).

Methods: The E.