Abstract
Aim: To adapt and evaluate validity-reliability the spanish version of the questionnaire for oral hygiene advice given by dentist in Chile. Materials and methods: Validation study conducted according COSMIN recommendations. The original questionnaire in english was adapted to spanish by translation, back translation, expert review and pilot test sample of 56 dentists. The instrument consisted of 3 sections: recommendations for oral hygiene, relevance given to the delivery of oral hygiene instruction and training and experience in delivering oral hygiene recommendations. It was reapplied in 5 of them a week later. Reliability was measured by internal consistency (Cronbach's alpha), test-retest (Cohen's kappa and weighted kappa) and measurement error (limits of agreement, LdA). Content validity was evaluated by experts and construct validity through convergent validity (Pearson correlation). Results: A good level of internal consistency that applies to 5 items (Cronbach's alpha = 0.73) was obtained. For items of nominal scale the Cohen kappa coefficient was 0.80 (95% CI = 0.64 to 0.95) and for ordinal items weighted kappa coefficient (linear weighting) was 0.76 (95% CI = 0.65 to 0.88). The difference between the scores calculated for the measurements was 1 standard deviation 2.35. 95% of the differences were between -5.7 to 3.7 (+/- 4.7 LdA = 1) and the variance of the total score was 29 to 41. A good level of convergent validity (Pearson correlation = 0.63) was obtained. Conclusion: The final questionnaire obtained is valid and reliable for use in chilean dentists with a profile like those included in this study to identify and quantify the oral hygiene instruction they provide to patients. Future studies should assess the validity and reliability of this adaptation other spanish-speaking countries.
Highlights
One of the strategies to decrease dental caries morbidity is educational interventions, such as dental education, which includes oral hygiene recommendations delivered by dentists to their patients
The questionnaire, entitled “Comparison of oral hygiene advice given by student dentists, hygienists and therapists with evidence-based recommendations” includes three sections: (a) recommendations for oral hygiene with twelve closed questions to analyze specific features of oral hygiene tips given by respondents to their patients or the general population
We find that the final version obtained was valid and reliable to be applied to Chilean dentists in order to identify and quantify oral hygiene recommendations that they give to their patients
Summary
One of the strategies to decrease dental caries morbidity is educational interventions, such as dental education, which includes oral hygiene recommendations delivered by dentists to their patients. DOI:10.17126/joralres.2015.020 to evaluate the effectiveness of educational recommendations for oral health delivered by dentists They reported three findings: (a) an increase in the knowledge of oral health on the part of patients who receive education for oral health, (b) a small and transient decrease in the levels of dental plaque accumulation and (c) and none effect on caries levels[5]. They found that most of the studies lacked a design or appropriate report and it urged to develop instruments and studies that could be used to measure the impact of educational interventions[5]. One of the requirements for evaluating these interventions is to identify what the recommendations for oral hygiene delivered by dentists are
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