Influence of generalized joint hypermobility on the stomatognathic functions, temporomandibular joint and dental occlusion
Abstract
Generalized joint hypermobility (GJH) is an extreme variation of normal joint mobility and it is considered a benign and non- pathological phenomenon. Among its manifestations are the reduction of the proprioception and, consequently, of the motor coordination. It is believed that the temporomandibular joint (TMJ) is amongst the joints affected by GJH . This fact instigated this research, which propose to evaluate the influence of GJH on the TMJ, the stomatognathic functions of mastication and deglutition, and dental occlusion in women. Forty three women participated, voluntarily, in the study conducted at the Speech-Language-Hearing Service of UFSM. The HAG was assessed according to the criteria of Carter and Wilkinson, modified by Beighton and, based on the scores obtained in this scale, the volunteers were distributed into two groups: with GJH (GH, n=17) and without GJH (GSH, n=26). The signs of TMD were examined according the instrument Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD); mastication and deglutition were assessed through myofunctional orofacial exam (MBGR protocol Marchesan, Berretin-Felix, Genaro, Rehder, 2009); and the occlusion evaluation comprised: the Angle Class, presence of overbite, overjet, openbite or crossbite, pattern of desocclusion and occlusal interference. The analyzed results showed prevalence of clicks during jaw movements (52.9%) and mouth opening deviation (76.5%) in the GH. The mastication pattern appeared abnormal…
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