title: Unerupted mandibular third molars: symptoms, associated pathologies, and indications for removal in a Turkish population.
abstract: OBJECTIVE
  To analyze the occurrence of symptoms of unerupted mandibular third molars, to investigate associated pathologies, and to determine indications for removal of unerupted mandibular third molars in a Turkish population.
  
  
  METHODS
  A retrospective study was performed by reviewing 832 patients referred to Gulhane Military Medical Academy Dentistry Center for evaluation of their mandibular third molars. The patients were clinically examined, and unerupted and partially erupted mandibular third molars were determined from radiographs. The symptoms and pathologies associated with these teeth were analyzed. The indications for removal were classified into 10 groups.
  
  
  RESULTS
  Two-thirds of the patients were between 20 and 29 years of age. Of the 832 unerupted mandibular third molars found, 557 (66.9%) teeth were partially erupted and 275 (33.1%) were completely unerupted. A total of 521 (62.6%) of all unerupted third molars had no symptoms, while 311 (37.4%) were associated with symptoms. The most frequent complaints of the patients were pain and swelling. Pericoronitis was observed as the most frequent pathology, in 142 patients. Of 832 unerupted mandibular third molars, 582 (69.9%) had complete root formation, 177 (21.2%) had two-thirds root formation, and 73 (8.9%) had one-third root formation.
  
  
  CONCLUSIONS
  Patients between 20 and 29 years of age had the highest prevalence of unerupted mandibular third molars (69.3%). However, this figure decreased with increasing age. Partially erupted teeth (n = 228) caused the occurrence of symptoms more than completely erupted teeth (n = 83) in a Turkish population.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Gülhane Military Medical Academy, Ankara, Turkey.
authors.forename: Necdet
authors.initials: N
authors.lastname: Doğan
authors.forename: Kaan
authors.initials: K
authors.lastname: Orhan
authors.forename: Yilmaz
authors.initials: Y
authors.lastname: Günaydin
authors.forename: Ramazan
authors.initials: R
authors.lastname: Köymen
authors.forename: Kemal
authors.initials: K
authors.lastname: Okçu
authors.forename: Ozlem
authors.initials: O
authors.lastname: Uçok
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003731:Dental Caries / Q000453:epidemiology / Q000209:etiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008964:Molar, Third / Q000000981:diagnostic imaging / Q000473:pathology*; D010497:Pericoronitis / Q000453:epidemiology / Q000209:etiology*; D010518:Periodontitis / Q000453:epidemiology / Q000209:etiology; D011859:Radiography; D012189:Retrospective Studies; D012391:Root Resorption / Q000453:epidemiology / Q000209:etiology; D014097:Tooth, Unerupted / Q000150:complications* / Q000000981:diagnostic imaging; D014098:Toothache / Q000453:epidemiology / Q000209:etiology*; D014421:Turkey / Q000453:epidemiology