OBJECTIVE The study was designed to test application of ultraviolet light to root canal walls, as a mean of complementary immediate disinfection after the use of sodium hypochlorite. STUDY DESIGN Root canals were infected ex vivo with Enterococcus faecalis for 48 hours. Non-attached bacteria were washed away, and the remaining attached bacteria were subjected to disinfection, with 5% sodium h...

To better understand the etiology associated with sodium hypochlorite accidents, we surveyed diplomates of the American Board of Endodontics. Of the 314 diplomates who responded, 132 reported experiencing a sodium hypochlorite accident. Questions were asked about the age and sex of the patient as well as the tooth being treated, preoperative signs, symptoms, diagnosis, and radiographic appearan...

Recent studies detected erosion of the dentinal walls following the use of EDTA as a final flush. Several authors have studied degradation of EDTA and it appears to be caused by an oxidation reaction. The objective of this paper was to verify through nuclear magnetic resonance (NMR) analysis if the oxidizing property of sodium hypochlorite inactivates EDTA. Solutions of sodium hypochlorite and ...

This work presents an investigation of kinetics copper leaching from mill tailings with hydrochloric acid and sodium hypochlorite at room temperature in filtration mode. The concentration varied 0.05 to 0.5 M 0.025 0.1 respectively. When the samples were leached sequence five-hour solutions acid, then six-hour hypochlorite, maximum degree extraction into solution was 32.62 %. And case inverse d...

o bjectives: the purpose of this experimental study was to compare the disinfection efficacy of sodium hypochlorite and peroxygenic acid (virkon) solutions for dental stone casts contaminated with microbial strains . materials and methods : a total of 960 spherical stone beads with a diameter of 10 mm were prepared and used as carriers of bacterial inoculums. they were individually inoculated b...

OBJECTIVE The aim of this study was to evaluate the tissue dissolution efficacy of four root canal irrigation solutions (sodium hypochlorite [NaOCl], chlorhexidine gluconate [CHX], Octenidine [OCT], and QMix 2in1) on bovine pulp tissue. MATERIALS AND METHODS Fifty bovine pulp tissue samples, each weighing 6.55 mg, were prepared and randomly divided into four experimental groups and one contro...

Rode, L. J. (The University of Texas, Austin), and M. Glenn Williams. Utility of sodium hypochlorite for ultrastructure study of bacterial spore integuments. J. Bacteriol. 92:1772-1778. 1966.-Spores of Bacillus megaterium are partially dissolved by sodium hypochlorite. Spore integuments become visible during the dissolution, and ultrastructural features may be detected. Three distinct integumen...