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Orofacial Myofunctional Disorders(OMDs)

Orofacial Myofunctional Disorders are incorrect, atypical, adaptive oral muscles patterns.

Examples of OMDs:

  • Thumb sucking

  • Tongue thrust

  • Tongue sucking

  • Lack of lip seal

  • Low tongue rest position

  • Disorders of chewing

  • Atypical swallowing


The regular presence of these adaptive, parafunctional movements often results in a variety of problems such as :

  • Occlusal dysfunction

  • Malocclusion (improper alignment of the teeth)

  • Failure to masticate food properly

  • Messy or “picky “eating

  • Speech problems

  • Inflammation of periodontal tissues

  • High narrow palate

  • Orthodontic relapse

  • Changes associated with abnormal ,vertical jaw growth


Etiology of OMDs :

  • Tongue-tie ,lip-tie

  • Overuse of pacifiers,sippy cups

  • Difficulties in breastfeeding 

  • Allergies

  • Diet of highly processed food 

  • A restricted nasal airway

  • Improper oral habits 

  • Neurological deficits and developmental delays

  • Hereditary predisposition

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