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  • Title: Biometric parameters of the temporomandibular joint and association with disc displacement and pain: a magnetic resonance imaging study.
    Author: Vieira-Queiroz I, Gomes Torres MG, de Oliveira-Santos C, Flores Campos PS, Crusoé-Rebello IM.
    Journal: Int J Oral Maxillofac Surg; 2013 Jun; 42(6):765-70. PubMed ID: 23490476.
    Abstract:
    The aim of this study was to evaluate the relationship between biometric parameters of the components of the temporomandibular joint (TMJ), articular disc displacement, and TMJ pain. Magnetic resonance imaging (MRI) examinations of 185 patients were assessed (39 males and 146 females (370 TMJs), mean age 41.3 years, range 18-79 years). The antero-posterior length of the condyle was measured in its medial and lateral regions, as well as the transverse length of the condyle. Possible associations between linear measurements of the condyle, presence of disc displacement, and joint pain were tested. Although pain was more commonly reported among patients with disc displacements, this association was not statistically significant. We found statistically significant associations showing that the antero-posterior length of the condyle at the lateral pole (D1L), the antero-posterior length of the condyle at the medial pole (D1M), and the transverse length of the condyle (D2) were higher among patients without disc displacements when compared to those with unilateral or bilateral displacements. This study showed that disc displacement was associated with smaller condyles in the antero-posterior and transverse dimensions when compared to condyles in subjects with normal disc position.
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