Reliability and Validity of the Italian Version of the Protocol of Orofacial Myofunctional Evaluation with Scores (I-OMES)

Folia Phoniatr Logop. 2018;70(1):8-12. doi: 10.1159/000488027. Epub 2018 May 30.


Objective: To evaluate the reliability, validity, and responsiveness of the Italian OMES (I-OMES).

Patients and methods: The study consisted of 3 phases: (1) internal consistency and reliability, (2) validity, and (3) responsiveness analysis. The recruited population included 27 patients with orofacial myofunctional disorders (OMD) and 174 healthy volunteers. Forty-seven subjects, 18 healthy and all recruited patients with OMD were assessed for inter-rater and test-retest reliability analysis. I-OMES and Nordic Orofacial Test - Screening (NOT-S) scores of the patients were correlated for concurrent validity analysis. I-OMES scores from 27 patients with OMD and 27 age- and gender-matched healthy subjects were compared to investigate construct validity. I-OMES scores before and after successful swallowing rehabilitation in patients were compared for responsiveness analysis.

Results: Adequate internal consistency (Cronbach α = 0.71) and strong inter-rater and test-retest reliability (intraclass coefficient correlation = 0.97 and 0.98, respectively) were found. I-OMES and NOT-S scores significantly and inversely correlated (r = -0.38). A statistical significance (p < 0.001) was found between the pathological group and the control group for the total I-OMES score. The mean I-OMES score improved from 90 (78-102) to 99 (89-103) after myofunctional rehabilitation (p < 0.001).

Conclusion: The I-OMES is a reliable and valid tool to evaluate OMD.

Keywords: Assessment protocol; Deglutition; Mastication; Orofacial myofunctional disorders; Respiration; Stomatognathic system.

Publication types

  • Validation Study

MeSH terms

  • Adolescent
  • Child
  • Child, Preschool
  • Cross-Sectional Studies
  • Deglutition Disorders / diagnosis*
  • Deglutition Disorders / physiopathology
  • Facial Muscles / physiopathology*
  • Female
  • Humans
  • Language
  • Male
  • Movement Disorders / diagnosis*
  • Movement Disorders / physiopathology
  • Observer Variation
  • Prospective Studies
  • Psychometrics
  • Reproducibility of Results
  • Severity of Illness Index*