I NTRODUCT ION The Er:YAG laser, emitting at 2940 nm, can be a valuable tool for root canal debridement and improved pathogen reduction during endodontic treatment. The ability to successfully negotiate and remove the smear layer and bacteria continues to be a challenge for nonsurgical endodontic treatment in root canal systems. Current instrumentation techniques use both hand and ultrasonic ir...

AIM To verify, under the scanning electron microscope (SEM), the influence of irrigation time with ethylenediaminetetraacetic acid (EDTA) and sodium hypochlorite (NaOCl) on intracanal smear layer removal. METHODOLOGY Twenty-one extracted human permanent teeth with single straight root canals were included. The root canals of the teeth were instrumented and, at the end of preparation, were irr...

Abstract BACKGROUND AND OBJECTIVES: The purpose of this study was to analyze the microstructural changes caused by Carisolv gel on sound, demineralized, and denatured dentin. METHOD: A total of 48 freshly extracted human premolars and molars were collected and divided into 3 main groups, Group I contained 12 teeth with fractured dentinal surface, which were further divided into two subgroups IA...

AIM To compare the average sealer cement film thickness and the extent and pattern of sealer penetration into dentinal tubules in association with four obturation techniques in curved root canals. METHODOLOGY Mesial canals of 44 extracted mandibular molars were randomly divided among the SimpliFill, continuous wave, Thermafil and 0.04 matched taper (master cones) lateral compaction obturation...

OBJECTIVE To assess the strength of the evidence describing the effectiveness of alternative strategies to the detection and management of early occlusal caries and suspected occlusal dentinal caries. METHODS Nine detection and intervention decision points were identified as being central to the management of early occlusal caries and suspected occlusal dentinal caries, or suspicious areas. F...

introduction:  the aim of this in-vitro study was the evaluation of mperature changes due to irradiation of two different lasers used for the reduction of dentinal hypersensitivity and their effect on the pulp damage. the study was done for two dentin thicknesses.  methods:  twenty intact extracted third molars were prepared by longitudinal ground sectioning for 1 and 2 mm dentin thicknesses wh...