Introduction:

Oral respiration is associated with speech organs disorders, which are generally combined with facial deformities and dental occlusion problems.

Objective:

To conduct an interdisciplinary assessment of the physiology of the stomatognathic and postural system in a 11-year old mouth-breathing patient.

Case presentation:

The male subject underwent orofacial examination using myoscanography, dynamometry, electromyography, Payne technique, and Rosenthal test. Postural alignment, stability (Romberg index) and plantar pressures (baropodometry) were evaluated.

Results:

The subject displayed: class I malocclusion; hyperdivergent maxillary hypoplasia, and micrognathism in muscular activity; a 34% asymmetry index in masseters during mastication; the symmetry in temporals was 67% and 62% during protrusion; alteration of the static stability with a Romberg index of 1.22; and 42.2% and 57.8% plantar pressure distributions in the left and right feet, respectively.

Conclusions:

The subject showed a reduction in orofacial muscle strength activity, alterations in the alignment of the head, shoulders and pelvic region, an alteration of the static stability, and plantar pressures with a greater distribution on the bilateral hindfoot and right lower limb.

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