title: Impact of untreated dental caries and its clinical consequences on the oral health-related quality of life of schoolchildren aged 8-10 years.
abstract: OBJECTIVE
  This study aims to evaluate the impact of untreated dental caries and its clinical consequences on the quality of life of Brazilian schoolchildren aged 8-10 years.
  
  
  METHODS
  A randomly selected sample of 587 children underwent a clinical oral examination for the assessment of untreated dental caries and clinical consequences. The WHO criteria (decayed component of the decayed, missing, and filled teeth--D-DMFT in permanent teeth or d-dfmt in primary teeth) and the PUFA index, which records the presence of severely decayed permanent (upper case) and primary (lower case) teeth with visible pulpal involvement (P/p), as well as ulceration caused by dislocated tooth fragments (U/u), fistula (F/f), and abscesses (A/a), were used for the oral examination. Oral health-related quality of life (OHRQoL) was evaluated using the Child's Perception Questionnaire (CPQ8-10). Poisson regression was employed to test unadjusted and adjusted associations between untreated dental caries/clinical consequences and OHRQoL.
  
  
  RESULTS
  The prevalence of untreated dental caries was 64.6% (D/d component of DMFT/dmft > 0) and 17.9% of children exhibited clinical consequences of caries (PUFA/pufa index >0). In the adjusted models, untreated caries was significantly associated with the total CPQ8-10 score and all subscale scores. The clinical consequences of dental caries (PUFA/pufa index >0) were significantly associated with the total CPQ8-10 as well as the oral symptoms and functional limitations' subscales.
  
  
  CONCLUSIONS
  Untreated dental caries and its clinical consequences exerted a negative impact on the OHRQoL of the schoolchildren analyzed.
authors.affiliation: Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Rua Arraial dos Forros, 215, Diamantina, MG, 39.100-000, Brazil.
authors.forename: Isabella
authors.initials: I
authors.lastname: Mota-Veloso
authors.affiliation: Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Rua Arraial dos Forros, 215, Diamantina, MG, 39.100-000, Brazil. lisadtna@yahoo.com.br.
authors.forename: Maria Eliza C
authors.identifier: http://orcid.org/0000-0002-7338-643X
authors.initials: ME
authors.lastname: Soares
authors.affiliation: Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Rua Arraial dos Forros, 215, Diamantina, MG, 39.100-000, Brazil.
authors.forename: Bruna Mota
authors.initials: BM
authors.lastname: Alencar
authors.affiliation: Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Rua Arraial dos Forros, 215, Diamantina, MG, 39.100-000, Brazil.
authors.forename: Leandro Silva
authors.initials: LS
authors.lastname: Marques
authors.affiliation: Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Rua Arraial dos Forros, 215, Diamantina, MG, 39.100-000, Brazil.
authors.forename: Maria Letícia
authors.initials: ML
authors.lastname: Ramos-Jorge
authors.affiliation: Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Rua Arraial dos Forros, 215, Diamantina, MG, 39.100-000, Brazil. joanaramosjorge@gmail.com.
authors.forename: Joana
authors.initials: J
authors.lastname: Ramos-Jorge
mesh_terms: D001938:Brazil / Q000453:epidemiology; D002648:Child; D003731:Dental Caries / Q000453:epidemiology* / Q000473:pathology*; D005260:Female; D006304:Health Status; D006801:Humans; D008297:Male; D009909:Oral Health / Q000706:statistics & numerical data*; D015995:Prevalence; D011788:Quality of Life; D011795:Surveys and Questionnaires; D014094:Tooth, Deciduous / Q000473:pathology*
keywords: Dental caries; Epidemiology; Quality of life; Schoolchildren