Dysarthria, or mouth. dyslarthia (from ancient Greek δυσ - “bad” + ἀρθρός “tied, fastened”) - disorders of the sound pronunciation side of speech, manifested by difficulties in pronouncing sounds. For example, due to weakness of the speech apparatus, impaired coordination between breathing, phonation and articulation due to lesions of the nervous system of various origins (stroke, tumor, cerebral palsy, etc.), facial injuries, anatomical defects in the structure of the maxillofacial apparatus, etc.
Dysarthrosis of the upper jaw and lower jaw refers to lesions of the facial area at the junction of the middle zone, soft palate, root of the tongue, branches of the facial nerve, upper part of the floor of the mouth and labial cheeks, in their relationship with the teeth, muscles, temporomandibular joint and pharyngeal walls.