title: Prevalence of periradicular periodontitis associated with crowned teeth in an adult Scottish subpopulation.
abstract: OBJECTIVE
  To examine the periradicular status of crowned teeth in an adult population in Scotland.
  
  
  METHODS
  Examination of full-mouth periapical radiographs from 319 consecutive adult patients (7596 teeth) attending Glasgow and Dundee Dental Hospitals for clinical examination.
  
  
  METHODS
  The periradicular status of teeth with a crown present was assessed to determine the presence of a radiolucency which may indicate pulpal disease.
  
  
  RESULTS
  63.3% (n = 202) of patients had at least one tooth that was crowned. The total number of crowns assessed was 802, of which 458 (57.1%) were vital preparations, and 87 (19.0%) of these had radiographic signs of periradicular disease. The majority of the teeth (62.0%) had distinct widening of the periodontal membrane space which is considered to be an early sign of periapical disease. 42.9% (n = 344) of the crowned teeth had previous root canal treatment of which 50.8% (175) had evidence of a periradicular radiolucency.
  
  
  CONCLUSIONS
  Pulpal damage may occur during procedures to provide a crown which may require subsequent root canal treatment. Radiographic follow-up of crowned teeth should be undertaken routinely.
authors.affiliation: University of Glasgow Dental School.
authors.forename: W P
authors.initials: WP
authors.lastname: Saunders
authors.forename: E M
authors.initials: EM
authors.lastname: Saunders
mesh_terms: D000328:Adult; D000367:Age Factors; D003442:Crowns / Q000009:adverse effects*; D003782:Dental Pulp / Q000502:physiology; D003788:Dental Pulp Diseases / Q000000981:diagnostic imaging / Q000209:etiology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008334:Mandible / Q000000981:diagnostic imaging; D008437:Maxilla / Q000000981:diagnostic imaging; D008875:Middle Aged; D010483:Periapical Diseases / Q000000981:diagnostic imaging / Q000209:etiology; D010485:Periapical Periodontitis / Q000000981:diagnostic imaging / Q000209:etiology*; D010513:Periodontal Ligament / Q000000981:diagnostic imaging; D015995:Prevalence; D011859:Radiography; D012390:Root Canal Therapy / Q000009:adverse effects; D012606:Scotland; D014092:Tooth Root / Q000000981:diagnostic imaging