title: Analysis of reasons for extraction of endodontically treated teeth: a prospective study.
abstract: BACKGROUND
  The purpose of this prospective study was to analyze the factors related to extraction of endodontically treated teeth.
  
  
  METHODS
  One hundred nineteen cases of extraction of endodontically treated teeth were consecutively reviewed, and the following items were recorded: type of tooth; presence and type of coronal restoration; motive of consultation; reasons for extraction; patient's age, gender, level of education; smoking status. Association between factors was investigated with χ(2) analysis.
  
  
  RESULTS
  Dental pain was the main motive for consultation (68.9%). The teeth most extracted were mandibular molars (51.3%), followed by maxillary molars (16.1%). First molars were the most frequently extracted (29.4%). Ninety-one teeth (76.5%) were restored coronally with or without post, and crowned teeth represented 5.9% of the sample. The reasons for extraction were periodontal disease (40.3%), endodontic failure (19.3%), vertical root fracture (13.4%), nonrestorable cuspid and crown fracture (15.1%), nonrestorable caries (5.2%), iatrogenic perforations and stripping (4.2%), and prosthetic (0.8%). Analysis between gender, smoking status, and education level showed no significant difference for reasons of extraction (P = .33 and .34).
  
  
  CONCLUSIONS
  The mandibular first molar without crown was the most frequently extracted tooth. The main reasons for extractions were periodontal disease, endodontic failure, and nonrestorable tooth damage caused by fracture or caries.
authors: Conservative Dentistry and Endodontics, University Cheikh Anta Diop, Dakar, Sénégal. babacar.toure@ucad.edu.sn
authors: Babacar
authors: B
authors: Touré
authors: Babacar
authors: B
authors: Faye
authors: Abdoul W
authors: AW
authors: Kane
authors: Cheikh M
authors: CM
authors: Lo
authors: Bassirou
authors: B
authors: Niang
authors: Yves
authors: Y
authors: Boucher
mesh_terms: D000328:Adult; D016009:Chi-Square Distribution; D003731:Dental Caries / Q000601:surgery; D019232:Dental Restoration Failure / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D007049:Iatrogenic Disease; D008297:Male; D010510:Periodontal Diseases / Q000601:surgery*; D011446:Prospective Studies; D011795:Surveys and Questionnaires; D014081:Tooth Extraction / Q000706:statistics & numerical data*; D014082:Tooth Fractures / Q000601:surgery; D014092:Tooth Root / Q000293:injuries; D019553:Tooth, Nonvital / Q000601:surgery*; D014098:Toothache / Q000601:surgery; D055815:Young Adult