title: Incidence of periapical lesions and clinical symptoms after pulpectomy--a clinical and radiographic evaluation of 1- versus 2-session treatment.
abstract: OBJECTIVE
  Outcome of pulpectomy in 2 treatment sessions with calcium hydroxide as an intracanal dressing was compared to a procedure comprising instrumentation and root-filling in 1 session.
  
  
  METHODS
  Subjects with a vital pulp condition (N = 256) were recruited to a randomized clinical trial. Outcome parameters included radiographic signs of apical periodontitis and painful symptoms at clinical follow-ups 1 week and 1-3 years after treatment.
  
  
  RESULTS
  Of 244 subjects available for final recall, 17 presented with periapical radiolucency. Lesions were evenly distributed among the 2 treatment groups. Postoperative pain recorded 1 week after permanent filling was significantly associated with overfilling (P = .001), with no difference between treatment groups. There was no association with presence of overfilling and radiographic lesion at end point of recall.
  
  
  CONCLUSIONS
  Study confirms that pulpectomy may be carried out at a high rate of success if due attention is given to aseptic operating procedures, proper instrumentation and filling. Under these conditions an interappointment dressing with calcium hydroxide does not seem to influence outcome.
authors.affiliation: Department of Endodontics and Restorative Dentistry, Faculty of Dentistry, University of Siena, Siena, Italy
authors.forename: Andrea
authors.initials: A
authors.lastname: Gesi
authors.forename: Magnus
authors.initials: M
authors.lastname: Hakeberg
authors.forename: Johan
authors.initials: J
authors.lastname: Warfvinge
authors.forename: Gunnar
authors.initials: G
authors.lastname: Bergenholtz
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D002126:Calcium Hydroxide / Q000627:therapeutic use; D002648:Child; D003763:Dental Leakage / Q000209:etiology / Q000517:prevention & control; D017050:Episode of Care; D005119:Extravasation of Diagnostic and Therapeutic Materials / Q000209:etiology; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D010485:Periapical Periodontitis / Q000209:etiology* / Q000517:prevention & control; D011670:Pulpectomy / Q000009:adverse effects / Q000379:methods*; D011859:Radiography; D012388:Root Canal Irrigants / Q000627:therapeutic use*; D012389:Root Canal Obturation / Q000009:adverse effects / Q000379:methods*; D017678:Sex Distribution; D018709:Statistics, Nonparametric; D014092:Tooth Root / Q000000981:diagnostic imaging; D014098:Toothache / Q000209:etiology; D016896:Treatment Outcome
chemical_list: D012388:Root Canal Irrigants; D002126:Calcium Hydroxide