Study on the effectiveness of the endodontic treatment performed with the 940 nm diode laser

Abstract

The aim of this study is to determine the effect of the laser diode with a wavelength of 940 nm in endodontic treatment, by irradiating channels in several stages of treatment, combined with standard lavage solutions. The study determines the removal of the smear layer and the permeability of the dentinal tubules as seen in scanning electron microscopy. Material and method. The study was conducted on 16 mono-radicular extracted teeth having an orthodontic purpose or which presented periodontal lesions and a 3-4 degree of mobility. The teeth were subjected to an endodontic protocol and a laser protocol, followed by a SEM analysis. Results. Increasing the number of cycles has as result the removal of smear layer and of the debris layer by the opening of the dentinal tubules. Conclusions. 940 nm diode laser can be safely and effectively used in endodontic treatments, without harmful effects on periodontal tissues. Using 940 nm laser diode in endodontic treatment has a synergistic effect which has been achieved with standard lavage.