Selected Muscle Tone and Asymmetry of the Occlusal Plane in Case of Intracapsular Temporomandibular Joint Disorder

Selected Muscle Tone and Asymmetry of the Occlusal Plane in Case of Intracapsular Temporomandibular Joint Disorder

The study focused on examining the connection between occlusal plane asymmetry and the intracapsular pathology of the temporomandibular joint (TMJ). It was important to explore the relationship of four orofacial muscle groups (m. masseter, m. temporalis, m. digastricus, and m. sternocleidomastoideus) to the inclination of the occlusal plane in a frontal projection, particularly their resting muscle tone.

Recently, there has been a strong emphasis on studying the dysfunctions of masticatory muscles in TMJ disorders, where studies have found muscle dysfunctions in 82-90% of cases. Especially in extracapsular TMJ pathologies, orofacial muscle dystonia is considered a key factor in the pathogenetic chain. However, the role of these muscle groups becomes significantly more crucial in intracapsular diseases of the joint, as their importance is not immediately obvious.

CRANIO®, The Journal of Craniomandibular & Sleep Practice, Srpen 2021

Abstract:
https://www.tandfonline.com/doi/full/10.1080/08869634.2021.1964052