BACKGROUND: the orofacial myofunctional disorders of individuals that have maxillomandibular disproportions can be related the orofacial muscular condition and the different functions accomplished by them. PROCEDURES: the patient was submitted to a radiographic video-fluoroscopic examination where in which we observed how many swallowing were needed to complete full cleaning of the valecular region and what was the position of the tongue after saliva swallowing. The examination was conducted with liquid Barium and cheese bread. RESULTS: in the pre-surgery evaluation, we found: the tongue's standard rest position is the bottom of the oral cavity; chewing was made with compensatory tongue movement (the food was crushed by the tongue against the palate); deglutition with pre-projection of tongue, decreasing in the back of the tongue elevation; adequate elevation of the soft palate and larynx; strength decreasing of oral ejection for liquid; and complete clearance pharyngeal function for liquids and solids. In the post-operative evaluation, we observed the frequent position of the tongue in the bottom of the mouth; chewing with tongue compensatory movement, (the food was smashed by the tongue against the palate); adequate elevation of the soft palate and larynx, satisfactory strength of oral ejection; and complete pharyngeal clearance function for liquids and solids. CONCLUSION: even after corrective dent facial surgery the adaptive functional standard was consistent in chewing and swallowing, despite of the improvement in the oral ejection power.
Dental occlusion; Deglutition; Tongue; Malocclusion