Ultrasonographic study of the temporomandibular joint in individuals with and without temporomandibular disorder

Autor(es)

Diaz, Dora Zulema R. ^[1] ; Mueller, Cristina Emoke E. ^[1] ; Gaviao, Maria Beatriz D. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Piracicaba Dent Sch, Dept Morphol, Piracicaba - Brazil

^[2] Univ Estadual Campinas, Piracicaba Dent Sch, Dept Pediat Dent, Av Limeira 901, BR-13414903 Piracicaba, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF ORAL SCIENCE; v. 61, n. 4, p. 539-543, NOV 2019.
• Citações Web of Science: 0

Resumo

The present study's aim was to compare temporomandibular joint (TMJ) images for individuals with and without temporomandibular disorder (TMD) using high-resolution ultrasonography (HRUS). The distance between the lateral-most point of the articular capsule and the lateral-most point of the mandibular condyle (lateral capsule-mandibular condyle distance) was determined to confirm the clinical diagnosis according to the Diagnostic Criteria for Temporomandibular Disorders (DC/Two). The sample group comprised 17 women and 15 men, aged 19-39 years, distributed into TMD (n = 20) and Asymptomatic (n = 12) groups. The evaluations were in closed- and open-mouth positions. The lateral capsule-mandibular condyle distance was measured in both positions. The articular surface of the condyle and the articular capsule were visualized as hyperechoic structures, and the articular disk was visualized as a central, hyperechogenic area surrounded by a hypoechoic linear image. Morphological changes were observed in some TMD group participants, including joint effusion (hypoechogenic area), condylar erosions (increased hyperechoic area), and condylar surface irregularities. The lateral capsule-mandibular condyle distance did not differ between sides or groups among participants with intra-articular disorders with or without pain (P > 0.05). In conclusion, HRUS allowed visualization of the TMJ structures, but did not allow confirmation of clinical diagnosis by DC/TMD. (AU)

• Processo FAPESP: 11/12659-1 - Avaliação da acupuntura e da eletroacupuntura no tratamento da dor miofascial da parte superior do músculo trapézio - um estudo duplo cego, randomizado, placebo controlado
• Beneficiário: Maria Beatriz Duarte Gavião
• Modalidade de apoio: Auxílio à Pesquisa - Regular