title: Antibacterial efficacy of sodium hypochlorite with a novel sonic agitation device.
abstract: OBJECTIVE
  The aim of this study is to evaluate the antibacterial efficacy of 3% sodium hypochlorite (NaOCl) with sonic agitation devices.
  
  
  METHODS
  Fifty extracted human single-rooted teeth were collected. Canals were prepared up to Profile #35/0.06. Forty teeth were inoculated with Enterococcus faecalis and incubated for 24 hours. The teeth were then divided into five groups based on the agitation device used. Group 1- was agitated with EndoActivator. Group 2 was agitated with Waterpik Power Flosser. In Group 3, Waterpik flosser was used with a nickel-titanium file. Group 4 (positive control) was not subjected to any agitation, and Group 5 -was the negative control. Superficial and deep dentinal shavings were collected from coronal and apical halves and sowed in brain heart infusion (BHI) agar to evaluate colony-forming units (CFU/mL).
  
  
  RESULTS
  Krusal Wallis, analysis of variance (ANOVA) and Mann-Whitney U test showed that Group 3 showed a smaller number of CFUs/mL Group 2 showed a relatively greater number of CFU/mL. The deep apical dentin areas showed more number of CFUs relative to other sites.
  
  
  CONCLUSIONS
  The nickel-titanium file attached to the Waterpik Power Flosser system was found to be as effective as the EndoActivator in antibacterial efficacy against E.faecalis.
authors.affiliation: Department of Conservative Dentistry and Endodontics, Yenepoya Dental College, Mangalore, India.
authors.forename: Amarnath
authors.initials: A
authors.lastname: Shenoy
authors.forename: Pragna
authors.initials: P
authors.lastname: Mandava
authors.forename: Nagesh
authors.initials: N
authors.lastname: Bolla
authors.forename: Sarath
authors.initials: S
authors.lastname: Raj
authors.forename: Jacob
authors.initials: J
authors.lastname: Kurien
authors.forename: M S
authors.initials: MS
authors.lastname: Prathap
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D013293:Enterococcus faecalis / Q000187:drug effects; D006801:Humans; D012973:Sodium Hypochlorite / Q000494:pharmacology*; D014070:Tooth / Q000382:microbiology; D014465:Ultrasonics
chemical_list: D000900:Anti-Bacterial Agents; D012973:Sodium Hypochlorite