Anteriorização da cabeça e posição da mandíbula após tratamento da disfunção temporomandibular

Abstract

Temporomandibular Disorder (TMD) is a collective term that includes a large spectrum of clinical diseases joint and muscle in the orofacial area. The stomatognathic system integrates the postural system, therefore, changes that may occur in a system can disarrange the function of another. The maintenance of maxillomandibular relationship has been discussed and highlighted, however, less explored in the literature. This research aimed to verify, through the lateral radiograph and cephalometric analysis, if there is change in the position of the mandible, and also through computerized photogrammetry, if there is change in the position of the head, before and after TMD treatment, verify the mandibular’s positioning. Twenty seven patients from School of Dentistry – Federal University of Mato Grosso do Sul, aged more than 18 years and volunteers for the research were selected. Clinical examination was based on diagnostic index Research Diagnostic Criteria (RDC). They worn an intraoral device and received previous treatment guidelines. Teleradiography and postural assessment were performed in physiological Centric Relation (CR) with the device in position, before and after 8 weeks of treatment. T student test was assessed for statistical analisys, with significance 5%. Pain perception, assessed by Visual Analogic Scale, for treatment group was 6,43 ± 2,84 and 2,17 ± 2,39, respectively, before and after treatment (p<0,05). The vertical alignment of the head in the treatment group at the initial and final situations presented 21,84 ± 17,49⁰ and 11,38 ± 14,61⁰(p<0,05). The mandibular positioning, in the treatment group, without using the device at the time of radiography, in RC physyiological was: A-NB (initial): 4.95 ± 2.52 mm; and A-NB (final): 4.64 ± 2.52 mm (p <0.05). It can be concluded that the TMD promotes change the vertical alignment of the head and interfere in mandibular positioning.