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The International Journal of Prosthodontics



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Int J Prosthodont 32 (2019), No. 2     28. Mar. 2019
Int J Prosthodont 32 (2019), No. 2  (28.03.2019)

Page 137-142, doi:10.11607/ijp.6002, PubMed:30856637

Development and Validation of the French Version of the Orofacial Esthetic Scale
N'Guyen-Van, Thi-Lan / Moreau, Nathan / Braud, Adeline
Purpose: The aims of this study were to develop a French version of the Orofacial Esthetic Scale (OES) and to investigate its psychometric properties among French-speaking dental patients.
Materials and Methods: The OES is an eight-item instrument initially developed to assess self-reported orofacial esthetics in patients with prosthodontic concerns. The first seven items refer to direct esthetic impact and give a summary score, and the remaining item is a global assessment item. The original English version of the OES questionnaire was translated and cross-culturally adapted to develop a French version (OES-F). The reliability (internal consistency and test-retest reliability) and validity (convergent and discriminative) of the OES-F were then tested in a sample of 140 patients awaiting dental treatment.
Results: Cronbach's alpha coefficients of the OES-F ranged from 0.885 to 0.913. The corrected item-total correlation coefficients ranged from 0.523 to 0.872. Intraclass correlation coefficient values were 0.94 (95% confidence interval [CI] 0.89 to 0.97) for the summary score and ranged between 0.85 (95% CI 0.73 to 0.92) and 0.90 (95% CI 0.81 to 0.94) for the items. OES-F summary scores assessed by patients were significantly correlated with experts' ratings (r = 0.51; P < .05). OES-F summary scores discriminated patients with esthetic concerns from those without esthetic concerns (P < .05).
Conclusion: The OES-F questionnaire showed excellent psychometric properties and may be a suitable scale for assessing orofacial esthetics among French patients awaiting dental treatment.