title: Taurodontism: A minor diagnostic criterion in Laurence-Moon/Bardet-Biedl syndromes.
abstract: OBJECTIVE
  The objective of the study was to present the prevalence of taurodontism in the permanent dentition in individuals with Laurence-Moon/Bardet-Biedl syndromes (LM/BBS).
  
  
  METHODS
  Thirty-nine individuals were studied, which comprises the whole population of known LM/BBS patients in Norway. Data were collected retrospectively. Panoramic radiographs (OPG) were evaluated to document taurodontism.
  
  
  RESULTS
  Taurodontism was found in 82.9% of the individuals with LM/BBS. The second mandibular molars had the highest (72.3%) prevalence of taurodontism and the first mandibular molars the lowest (58.2%).
  
  
  CONCLUSIONS
  This study suggests that taurodontism should be included as a minor diagnostic criterion for the Laurence-Moon/Bardet-Biedl syndromes (LM/BBS).
authors: TAKO-Centre, National Resource Centre for Oral Health in Rare Medical Conditions, Lovisenberg Diakonale Hospital , Oslo , Norway.
authors: Els-Marie
authors: EM
authors: Andersson
authors: Stefan
authors: S
authors: Axelsson
authors: Lars-Fredrik
authors: LF
authors: Gjølstad
authors: Kari
authors: K
authors: Storhaug
mesh_terms: D020788:Bardet-Biedl Syndrome / Q000150:complications / Q000175:diagnosis*; D003786:Dental Pulp Cavity / Q000002:abnormalities*; D006801:Humans; D012189:Retrospective Studies; D014071:Tooth Abnormalities / Q000150:complications*