Document Detail


Taurodontism in Brazilian patients with tooth agenesis and first and second-degree relatives: A case-control study.
MedLine Citation:
PMID:  22647425     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
AIM: An association between tooth agenesis and taurodontism has been suggested. To verify if tooth agenesis and taurodontism are associated within families and specific patterns of tooth agenesis, this study aims to compare the frequency of taurodontism in patients with nonsyndromic familial tooth agenesis, their first and second-degree relatives with complete permanent dentition and a control group of unrelated healthy individuals with complete permanent dentition. MATERIALS AND METHODS: Panoramic radiographs of patients with nonsyndromic familial tooth agenesis, their first and second-degree relatives and a control group of individuals with complete permanent dentition were examined. Taurodontism was assessed on permanent mandibular first molars. The difference in the frequency of taurodontism among the studied groups was tested with Fisher's Exact Test. RESULTS: Seventeen families with nonsyndromic familial tooth agenesis were studied. The frequency of taurodontism was 29% in patients with tooth agenesis, 10.3% in their first and second degree relatives, and 6.6% in the control group. A significant statistical difference among the studied groups was observed (p=0.002). Taurodontism was proportionally more frequent in patients with a higher number of absent teeth. It was mainly observed in patients from families in which the proband was diagnosed with oligodontia. CONCLUSIONS: Taurodontism is more frequent in nonsyndromic familial tooth agenesis. Individuals in families with second premolar and molar oligodontia are more likely to have taurodontism, even the individuals with complete dentition. This association could define a subphenotype for future genetic studies of dental development.
Authors:
Raquel R Gomes; Clarissa D Habckost; Larissa G Junqueira; André F Leite; Paulo T Figueiredo; Lílian M Paula; Ana C Acevedo
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-5-28
Journal Detail:
Title:  Archives of oral biology     Volume:  -     ISSN:  1879-1506     ISO Abbreviation:  -     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-5-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0116711     Medline TA:  Arch Oral Biol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Affiliation:
Oral Care Center for Inherited Diseases, University Hospital of Brasilia, Department of Dentistry, School of Health Science, University of Brasilia, Brazil.
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