title: Validation of the Spanish version of the "Questionnaire on the treatment of approximal and occlusal caries".
abstract: OBJECTIVE
  To translate and validate a Spanish version of the "Questionnaire on the treatment of approximal and occlusal caries" as a method of collecting information about treatment decisions on caries management in Chilean primary health care services.
  
  
  METHODS
  The original questionnaire proposed by Espelid et al. was translated into Spanish using the forward-backward translation technique. Subsequently, validation of the Spanish version was undertaken. Data were collected from two separate samples; first, from 132 Spanish-speaking dentists recruited from primary health care services and second, from 21 individuals characterised as cariologists. Internal consistency was evaluated by the generation of Cronbach's alpha, test-retest reliability was evaluated by Cohen's kappa, convergent validity was evaluated by comparing the total scale scores to a global evaluation of treatment trends and discriminant validity was evaluated by investigating the differences in total scale scores between the Spanish-speaking dentist and cariologist samples.
  
  
  RESULTS
  Cronbach's alpha indicated an internal consistency of 0.63 for the entire scale. Cohen's kappa correlation coefficient expressed a test-retest reliability of 0.83. Convergent validity determined a Pearson's correlation coefficient of 0.24 (p < 0.01). The comparison of proportions (chi-squared) indicated that discriminant validity was statistically significant (p < 0.01), using a one-tailed test.
  
  
  CONCLUSIONS
  The Spanish version of the "Questionnaire on the treatment of approximal and occlusal caries" is a valid and reliable instrument for collecting information regarding treatment decisions in cariology.
  
  
  CONCLUSIONS
  The clinical relevance of this study is to acquire a reliable instrument that allows for the determination of treatment decisions in Spanish-speaking dentists.
authors.affiliation: Department of Restorative Dentistry, Cariology Area, Faculty of Dentistry, University of Chile, Sergio Livingstone Pohlhammer 943, Independencia, Santiago, Chile. begoruizconrads@gmail.com
authors.forename: Begoña
authors.initials: B
authors.lastname: Ruiz
authors.forename: Iván
authors.initials: I
authors.lastname: Urzúa
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Cabello
authors.forename: Gonzalo
authors.initials: G
authors.lastname: Rodríguez
authors.forename: Ivar
authors.initials: I
authors.lastname: Espelid
mesh_terms: D002677:Chile; D003657:Decision Making; D003731:Dental Caries / Q000473:pathology / Q000628:therapy*; D003793:Dental Restoration, Permanent / Q000379:methods; D003815:Dentists; D016002:Discriminant Analysis; D006801:Humans; D007802:Language; D010347:Patient Care Planning; D011320:Primary Health Care; D011795:Surveys and Questionnaires / Q000592:standards*; D014175:Translating