Difference between revisions of "Occlusion and Posture"

[[File:VEMP.jpg|Figure 1: Vestibula Evoked Myogenic Potentials (see chapter '[[Complex Systems]]'|left|300x300px]]In this section of Masticationpedia we will deal with a much discussed topic in the field of prosthetic rehabilitation and in the diagnosis of Orofacial disorders including Temporomandibular dysfunctions. As we shall see, there is a line between proponents of the correlation between posture and the trigeminal system and those who refute the correlation. To confirm or deny this correlation, it would be enough to focus the attention on the VEMPs (Myogenic Vestibular Evoked Potentials) to understand the neuronal synergism but it would be necessary to pay equal attention to the synaptic modulations that occur in this phenomenon to understand how much we still know about the aforementioned trigeminal/vestibular correlation. Just think of the roll effect and evaluate the click-evoked cervical vestibular myogenic potentials (VEMPS) during the visual roll motion that elicited an illusory sensation of self-movement (i.e., vection). During vetion, there is an increase in cVEMP amplitude that is positively correlated with subjective reports of vection strength. The experimental conclusion is, therefore, that the simple subjective sensation of section is able to modulate the response of VEMPs and that this higher-level cortical phenomenon can also extend to short-lasting vestibulospinal responses. Therefore, regardless of who will be right over time, one must always be very careful in evaluating the symptoms and clinical signs reported by patients and not be influenced by more or less fashionable axioms which can generate even serious errors in the differential diagnosis such as in clinical case that we will present below.