title: Trial suggests no difference between single-visit and two-visit root canal treatment.
abstract: METHODS
  Randomised controlled trial.
  
  
  METHODS
  Patients over the age of 16 with radiographic evidence of apical periodontitis and a diagnosis of pulpal necrosis confirmed by negative response to hot and cold tests were randomised to receive either a one or two visit root canal treatment (RoCT).
  
  
  METHODS
  Clinical and radiographic evaluation was undertaken at two years by masked examiners.
  
  
  RESULTS
  Two hundred and eighty-seven patients (300 teeth) were randomised. One hundred and fifty-five teeth were allocated to the single visit group and 145 to two-visit treatment. Eighteen teeth were lost to follow up, nine from each group. At two years there were no significant differences between the groups, with 96.57% (141 of 146 teeth) in the single-visit group being classified as healed compared with 88.97% (121 of 136 teeth) in the two-visit group.
  
  
  CONCLUSIONS
  This study provided evidence that a meticulously instrumented single-visit root canal treatment can be as successful as a two-visit treatment. There was no significant difference in radiographic evidence of periapical healing between single-visit and two-visit root canal treatment.
authors.affiliation: Center of Excellence in Osteoporosis Research, School of Dentistry, King Abdulaziz University, Jeddah.
authors.forename: Balto
authors.initials: B
authors.lastname: K
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D010485:Periapical Periodontitis / Q000628:therapy*; D012390:Root Canal Therapy / Q000379:methods*