introduction: laser irradiation has been introduced in endodontic treatment due to its bactericidal effect. the aim of this study is to evaluate the bactericidal efficacy of a 940 nm diode laser alone or in combination with 5% sodium hypochlorite (naocl) against mature biofilms of e. faecalis . methods: sixty-eight (60 for the three groups, 4 for sem and 4 as negative controls) single-rooted hu...

PURPOSE The purpose of this study was to compare the effectiveness of 5% sodium hypochlorite (NaOCl) to that of ferric sulfate (FeSO4) as a pulpotomy medicament in decayed primary molars. METHODS Healthy subjects between 4 and 9 years with at least 2 primary molars needing pulpotomy consented to receive either NaOCl or FeSO4 and restoration with IRM base/stainless steel crown in a prospective...

INTRODUCTION The aim of this study was to compare the antimicrobial effects of MTAD, sodium hypochlorite (NaOCl) and their combination on endodontic micro-organisms. MATERIALS AND METHODS Zone of Inhibition (ZI) and Minimum Inhibitory Concentration (MIC) were the techniques used. In ZI technique blood agar plates were inoculated with organisms, paper discs were soaked with irrigants and maxim...

OBJECTIVES to evaluate the effect of sodium hypochlorite (NaOCl) treatment on surface dentin roughness (Ra) and contact angle (CA) when using Prime&Bond NT adhesive (PB NT). STUDY DESIGN Extracted human third molars were sectioned to expose flat, superficial and deep dentin surfaces. CA and Ra were measured (1) before and (2) after 35% H₃PO₄ etching, and (3) H₃PO₄ etching + 5% NaOCl treated f...

OBJECTIVES This study aimed to evaluate the accuracy of Root ZX in determining working length in presence of normal saline, 0.2% chlorhexidine and 2.5% of sodium hypochlorite. MATERIAL AND METHODS Sixty extracted, single rooted, single canal human teeth were used. Teeth were decoronated at CEJ and actual canal length determined. Then working length measurements were obtained with Root ZX in p...

OBJECTIVE The aim of this study was to evaluate the antimicrobial activity of auxiliary chemical substances and natural extracts on Candida albicans and Enterococcus faecalis inoculated in root canals. MATERIAL AND METHODS Seventy-two human tooth roots were contaminated with C. albicans and E. faecalis for 21 days. The groups were divided according to the auxiliary chemical substance into: G1...

AIM To evaluate the antimicrobial effect of 2.5% sodium hypochlorite alone (NaOCl) and associated with 9% HEBP (NaOCl/HEBP), 2% peracetic acid (PAA) and 2% chlorhexidine (CHX), on the viability of Enterococcus faecalis biofilms attached to dentine. METHODOLOGY Biofilms of E. faecalis were grown on the surface of dentine blocks for 5 days and then exposed to the irrigating solutions for 3 min....

The purpose of this study was to evaluate the effect of an alcohol-based caries detector (Kurakay) on the surface tension of a conventional sodium hypochlorite (NaOCl) preparation, and a product containing a surface-active agent (Chlor-XTRA). The surface tensions of the following solutions were tested: NaOCl, a mixture of NaOCl and Kurakay 9:1 w/w, Chlor-XTRA, a mixture of Chlor-XTRA and Kuraka...

Objective: The aim of this study is to evaluate the accuracy of Root ZX in determining working length in presence of 2% chlorhexidine and 5% sodium hypochlorite. Material and Methods: Thirty extracted, single rooted, single canal human teeth were used. Teeth were decoronated at CEJ and actual canal length determined. Then working length measurements were obtained with Root ZX in presence of 2% ...

INTRODUCTION The aim of this in vitro study was to evaluate the bond strength of Photo-Activated Disinfection (PAD) system to dentin with different root canal sealers by using a push-out test design. MATERIALS AND METHODS A total of 30 extracted mandibular premolar teeth with single and straight roots were used. The crowns were removed and the root canals were prepared by using ProTaper rotar...