title: Edentulism and shortened dental arch in Brazilian elderly from the National Survey of Oral Health 2003.
abstract: OBJECTIVE
  To describe the distribution of edentulism and estimate the prevalence of functional dentition and shortened dental arch among elderly population.
  
  
  METHODS
  A population-based epidemiological study was carried out with a sample of 5,349 respondents aged 65 to 74 years obtained from the 2002 and 2003 Brazilian Ministry of Health/Division of Oral Health survey database. The following variables were studied: gender; macroregion of residence; missing teeth; percentage that met the World Health Organization goal for oral health in the age group 65 to 74 years (50% having at least 20 natural teeth); presence of shortened dental arch; number of posterior occluding pairs of teeth. The Chi-square test assessed the association between categorical variables. The Kruskal-Wallis and Mann-Whitney tests were used to assess differences of mean between number of posterior occluding pairs teeth, macro-region and gender.
  
  
  RESULTS
  The elderly population had an average of 5.49 teeth (SD: 7.93) with a median of 0. The proportion of completely edentulous respondents was 54.7%. Complete edentulism was 18.2% in the upper arch and 1.9% in the lower arch. The World Health Organization goal was achieved in 10% of all respondents studied. However, only 2.7% had acceptable masticatory function and aesthetics (having at least shortened dental arch) and a mean number of posterior occluding pairs of 6.94 (SD=2.97). There were significant differences of the percentage of respondents that met the World Health Organization goal and presence of shortened dental arch between men and women. There were differences in shortened dental arch between macroregions.
  
  
  CONCLUSIONS
  The Brazilian epidemiological oral health survey showed high rate of edentulism and low rate of shortened dental arch in the elderly population studied, thus suggesting significant functional and aesthetic impairment in all Brazilian macroregions especially among women.
authors.affiliation: Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil. mtuliofr@ig.com.br
authors.forename: Marco Túlio Freitas
authors.initials: MT
authors.lastname: Ribeiro
authors.forename: Marco Aurélio Camargo da
authors.initials: MA
authors.lastname: Rosa
authors.forename: Rosa Maria Natal de
authors.initials: RM
authors.lastname: Lima
authors.forename: Andréa Maria Duarte
authors.initials: AM
authors.lastname: Vargas
authors.forename: João Paulo Amaral
authors.initials: JP
authors.lastname: Haddad
authors.forename: Efigênia
authors.initials: E
authors.lastname: Ferreira E Ferreira
mesh_terms: D000368:Aged; D001938:Brazil / Q000453:epidemiology; D003724:Dental Arch / Q000473:pathology* / Q000503:physiopathology; D003753:Dental Health Surveys; D019229:Dentition, Permanent; D005260:Female; D006801:Humans; D008297:Male; D008409:Mastication; D009066:Mouth, Edentulous / Q000453:epidemiology*; D009909:Oral Health; D009929:Organ Size; D015995:Prevalence; D012737:Sex Factors; D018709:Statistics, Nonparametric