title: Which is the most effective disinfection method in primary root canals: Conventional or newly developed ones?
abstract: BACKGROUND
  The aim of the study was to evaluate the antimicrobial activity of the-potassium-titanyl-phosphate--the KTP laser and ozone in of primary root canals.
  
  
  METHODS
  Sixty primary incisor teeth were selected. The specimens were inoculated with 10 mL Enterococcus faecalis (E. faecalis). Groups: The KTP laser (1,5 W); gaseous ozone (150 s); sodium hypochlorite (NaOCl); saline group. Sterile paper points used to sample bacteria from the canals to tubes containing 5 mL of brain heart infusion broth. Then, 10 mL suspension was incubated in culture media for 24 h. Data were analyzed statistically using Kruskal-Wallis and Mann-Whitney U-test.
  
  
  RESULTS
  There were statistically significant differences between all groups (P<0.05). Complete sterilization was achieved in the 2.5% NaOCl group. The number of bacteria were significantly reduced in experimental groups in comparison to the saline group.
  
  
  CONCLUSIONS
  The KTP laser and ozone application provided a significant antibacterial effect in primary root canals; however, 2.5% NaOCl was superior.
authors.affiliation: Department of Pediatric Dentistry, Faculty of Dentistry, Cumhuriyet University, Sivas, Turkey.
authors.forename: A
authors.initials: A
authors.lastname: Kapdan
authors.forename: A
authors.initials: A
authors.lastname: Kustarci
authors.forename: T
authors.initials: T
authors.lastname: Tunc
authors.forename: Z
authors.initials: Z
authors.lastname: Sumer
authors.forename: S
authors.initials: S
authors.lastname: Arslan
mesh_terms: D003786:Dental Pulp Cavity / Q000187:drug effects / Q000382:microbiology* / Q000528:radiation effects; D004203:Disinfection / Q000379:methods*; D013293:Enterococcus faecalis / Q000187:drug effects / Q000302:isolation & purification* / Q000528:radiation effects; D006801:Humans; D007180:Incisor; D053844:Lasers, Solid-State / Q000627:therapeutic use; D010126:Ozone / Q000627:therapeutic use; D012388:Root Canal Irrigants / Q000627:therapeutic use*; D012973:Sodium Hypochlorite / Q000627:therapeutic use*
chemical_list: D012388:Root Canal Irrigants; D010126:Ozone; D012973:Sodium Hypochlorite