2007
DOI: 10.1590/s0100-39842007000500018
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Articulação temporomandibular: estudo anatômico e videofluoroscópico

Abstract: Problemas clínicos que afetam a mastigação, com freqüência, são capazes de afetar a articulação temporomadibular. Acredita-se que dez milhões de pessoas nos Estados Unidos e 40% da população adulta mundial sejam afetados por condição dolorosa em algum momento de suas vidas. O presente trabalho avalia as possibilidades de contração do músculo pterigóideo lateral e sua inserção diretamente no côndilo mandibular, assim como a participação do fascículo inferior na abertura da boca e a atuação do disco articular no… Show more

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“…Among the main etiological factors, we emphasize bad dental occlusion, myofunctional changes, harmful habits generating muscle overactivity and consequent joint overload, stress, emotional problems, among others. 14,15 Several factors classified as primary or secondary determine the development of changes in TMJ dysfunctions. Primary factors are related to pathological changes and tissue injuries in the TMJ.…”
Section: Discussionmentioning
confidence: 99%
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“…Among the main etiological factors, we emphasize bad dental occlusion, myofunctional changes, harmful habits generating muscle overactivity and consequent joint overload, stress, emotional problems, among others. 14,15 Several factors classified as primary or secondary determine the development of changes in TMJ dysfunctions. Primary factors are related to pathological changes and tissue injuries in the TMJ.…”
Section: Discussionmentioning
confidence: 99%
“…The latter is related to the masticatory system: abnormal occlusion, aberrant mechanical stimulus in the oral cavity, oral habits, poor movements, and excessive external forces on the TMJ and muscles. 15 Complex etiological factors are classified into three types: anatomical, which are related to occlusion; psychological, related to stress and nervousness; and neuromuscular factors such as the habit of grinding teeth, swallowing erroneously -with tongue interposition and forward displacement of the jaw, generating vices of head, necks, and posture due to labor activities, positioning without mandible support during sleep or with unilateral pressure, and parafunctional habits such as nail-biting. 16 To confirm the clinical framework of the patient with temporomandibular joint changes, an exam consisting of bilateral TMJ palpation is required, in addition to the use of a caliper to measure the maximum aperture -when in the absence of pain, and the observation of crackles and lateral deviations in the jaw opening.…”
Section: Discussionmentioning
confidence: 99%