Effect of different irrigation protocols on the radicular dentin interface and bond strength with a metacrylate-based endodontic sealer.

This study assessed the influence of different endodontic chemical substances on the adhesion of the Epiphany SE/Resilon system (with and without resinous solvent) to radicular dentin walls, using the push-out test and scanning electron microscopy (SEM). Forty-eight root canals of human canines were prepared biomechanically with ProTaper rotary files (crown-down technique) and the radicular dentin was treated with either 17% EDTA, 2% chlorhexidine gel (CHX) or 2.5% NaOCl (control).

Initial experience with Pomerantzeff's technique for reduction of the size of giant left atrium.

Introduction: The most common indication for surgical correction of giant left atrium is associated with mitral valve insufficiency with or without atrial fibrillation. Several techniques for this purpose are already described with varying results.

Objective: To present the initial experience with the tangential triangular resection technique (Pomerantzeff).