Brazilian Journal of Anesthesiology
Brazilian Journal of Anesthesiology
Scientific Article

Design and validation of an oral health questionnaire for preoperative anaesthetic evaluation

Projeto e validação de um questionário de saúde oral para avaliação pré-anestésica no pré-operatório

Gema Ruíz-López del Prado; Vendula Blaya-Nováková; Zuleika Saz-Parkinson; Óscar Luis Álvarez-Montero; Alba Ayala; Maria Fe Muñoz-Moreno; Maria João Forjaz

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Abstract Background and objectives: Dental injuries incurred during endotracheal intubation are more frequent in patients with previous oral pathology. The study objectives were to develop an oral health questionnaire for preanaesthesia evaluation, easy to apply for personnel without special dental training; and establish a cut-off value for detecting persons with poor oral health. Methods: Validation study of a self-administered questionnaire, designed according to a literature review and an expert group's recommendations. The questionnaire was applied to a sample of patients evaluated in a preanaesthesia consultation. Rasch analysis of the questionnaire psychometric properties included viability, acceptability, content validity and reliability of the scale. Results: The sample included 115 individuals, 50.4% of men, with a median age of 58 years (range: 38-71). The final analysis of 11 items presented a Person Separation Index of 0.861 and good adjustment of data to the Rasch model. The scale was unidimensional and its items were not biased by sex, age or nationality. The oral health linear measure presented good construct validity. The cut-off value was set at 52 points. Conclusions: The questionnaire showed sufficient psychometric properties to be considered a reliable tool, valid for measuring the state of oral health in preoperative anaesthetic evaluations.


Patient safety, Dental injury, Oral health, Oral hygiene, Questionnaire


Resumo Justificativa e objetivo: As lesões dentárias que ocorrem durante a intubação traqueal são mais frequentes em pacientes com patologia oral prévia. O objetivo do estudo foi desenvolver um questionário de saúde bucal para avaliação no período pré-anestesia, de fácil aplicação por pessoal sem formação odontológica, e estabelecer um valor de corte para detectar pessoas com má saúde bucal. Métodos: Estudo de validação de um questionário autoadministrado, projetado de acordo com uma revisão da literatura e recomendações de um grupo de especialistas. O questionário foi aplicado a uma amostra de pacientes avaliados em uma consulta pré-anestesia. A análise Rasch das propriedades psicométricas do questionário incluiu viabilidade, aceitabilidade, validade de conteúdo e confiabilidade da escala. Resultados: A amostra incluiu 115 indivíduos, 50,4% de homens, com mediana de 58 anos (variação: 38-71). A análise final dos 11 itens apresentou um índice de separação dos indivíduos de 0,861 e um bom ajuste dos dados ao modelo de Rasch. A escala foi unidimensional e seus itens não foram influenciados por sexo, idade ou nacionalidade. A medida linear da saúde bucal apresentou boa validade de constructo. O valor de corte foi fixado em 52 pontos. Conclusões: O questionário mostrou propriedades psicométricas suficientes para ser considerado uma ferramenta confiável, válida para medir o estado de saúde bucal nas avaliações pré-anestesia antes da operação.


Segurança do paciente, Lesão dentária, Saúde bucal, Higiene bucal, Questionário


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