Temporomandibular disorders (TMD) include various diseases affected temporomandibular joints and associated adjacent myofacial structures. The purpose of the contribution was to evaluate the function and dysfunction of temporomandibular joints in a patient with functional TMD before and after aimed rehabilitation and comparison of these changes with a group of healthy probands. The evaluation was performed by means of instrumental measurement – two dimensional video-kinematic analysis (2D-VKA) in sagital and frontal planes upon opening of the mouth. The results of 2D-VKA indicate that in patients with TMD the opening of mouth is accompanied by a lateral deviation and a superfluous atypical protrusion of mandible in sagital plane. After the rehabilitation-reeducation therapy the locomotor functions are optimized and the opening of mouth is not accompanied by so marked (dysfunctional) deviations of the movement which is getting close to the path in healthy individuals.

        Key words: temporomandibular dysfunction, video-kinematic analysis, rehabilitation, lateral pterygoid muscle