Validation of Two Diagnostic Tools for the Screening of Temporomandibular Disorder

Background/Objectives: Temporomandibular disorders (TMDs) constitute an umbrella term encompassing a spectrum of conditions, including pain in the temporomandibular joint (TMJ), masticatory muscle pain, and restricted mandibular movement. The objective of the present study was to translate the Fonseca and TMD-7 questionnaires into Romanian, to assess their face validity, and to determine the reliability of the Romanian-language versions for use in the diagnosis of temporomandibular disorders (TMDs) and in subsequent epidemiological and clinical studies. A secondary objective was to establish a scoring scale for the TMD-7 questionnaire. Methods: Both questionnaires were translated from English into Romanian and back-translated by two independent teams of translators, after which the final versions were established for face validity assessment and reliability testing. Results: The study demonstrated reliability according to the Cronbach's α coefficient, with values of 0.862 for the TMD-7 questionnaire and 0.840 for the Fonseca questionnaire. The scoring scale corresponding to the Fonseca questionnaire could not be implemented for the TMD-7 questionnaire. Conclusions: Both Romanian-language questionnaires demonstrated high corresponding Cronbach's α coefficients; however, for clinical use, the Fonseca questionnaire will be utilized, as the TMD-7 questionnaire does not have a scoring scale.