Introduction: This research aimed to develop and validate a questionnaire that considers social judgments and, through its application, assesses whether the presence of piercings, tattoos, beards, and loose hair visible in the face and neck region reflect on the patient perception regarding characteristics of the orthodontist's professional scope.
Methods: The developed questionnaire had its psychometric properties evaluated and was applied to 220 young people and adults, aged 18-70 years, who responded according to their perception of 12 manipulated images of orthodontists with different stereotypes, considering the following items: hygiene, care, punctuality, experience and knowledge in orthodontics.
Results: The developed questionnaire showed high acceptability, confirmed reliability and validity of the construct, and satisfactory internal consistency. The stereotype interfered with the perception of professionalism (P <0.01), in which the orthodontist with combined characteristics (beard/loose hair, piercing, earrings, and tattoo) obtained the lowest mean scores, both for each item of the questionnaire individually (P <0.01) and in total (P <0.01). Health professional (P = 0.427) and educational level (P = 0.285) status did not influence the perception; however, there was a significant difference for the age groups (P = 0.041).
Conclusions: The developed questionnaire proved to be valid and reliable for application. Orthodontists with piercings and tattoos on the face and neck were considered less professional. Being a health professional and educational level status did not influence the perception. However, older subjects (aged 51-70 years) were more critical in judging stereotypes than younger subjects (aged 18-30 years).
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