TY - JOUR
T1 - Assessment of condyle position, fossa morphology, and disk displacement in symptomatic patients
AU - Rabelo, Katharina Alves
AU - Sousa Melo, Saulo Leonardo
AU - Torres, Marianna Guanaes Gomes
AU - Peixoto, Larissa Rangel
AU - Campos, Paulo Sérgio Flores
AU - Rebello, Iêda Margarida Crusoé Rocha
AU - de Melo, Daniela Pita
N1 - Publisher Copyright:
© 2017 Elsevier Inc.
PY - 2017/8
Y1 - 2017/8
N2 - Objective The aim of the study was to determine whether there are any associations between the morphology of the glenoid fossa, articular spaces, and disk displacement by evaluating the magnetic resonance imaging (MRI) scans of symptomatic patients. Gender and age were also evaluated for any effect on the parameters. Study Design MRI scans of 199 temporomandibular joints were assessed for the morphology of the glenoid fossa and articular spaces in both sagittal and coronal views. The presence of disk displacement and its type in closed-mouth and open-mouth positions were also assessed. Analysis of variance (ANOVA), Tukey, and Student t tests or Mann-Whitney rank sum tests were used to investigate the associations among these variables. Results A total of 113 joints (56.8%) were presented with disk displacement. The articular spaces observed in sagittal and coronal views were, overall, significantly larger in males than in females in 3 of the 6 spaces (superior, posterior, and central spaces). Larger superior and medial articular spaces were associated with angled glenoid fossae. Higher mean values of the articular space sizes were associated with normal disk position (P <.001), except for the anterior articular space. When displacement was identified, higher values of the articular space sizes were also associated with disk reduction in the open-mouth position (P <.05). Conclusions Condyles in the central position in the coronal view and slightly anteriorly positioned in the sagittal view are less likely to present disk displacement.
AB - Objective The aim of the study was to determine whether there are any associations between the morphology of the glenoid fossa, articular spaces, and disk displacement by evaluating the magnetic resonance imaging (MRI) scans of symptomatic patients. Gender and age were also evaluated for any effect on the parameters. Study Design MRI scans of 199 temporomandibular joints were assessed for the morphology of the glenoid fossa and articular spaces in both sagittal and coronal views. The presence of disk displacement and its type in closed-mouth and open-mouth positions were also assessed. Analysis of variance (ANOVA), Tukey, and Student t tests or Mann-Whitney rank sum tests were used to investigate the associations among these variables. Results A total of 113 joints (56.8%) were presented with disk displacement. The articular spaces observed in sagittal and coronal views were, overall, significantly larger in males than in females in 3 of the 6 spaces (superior, posterior, and central spaces). Larger superior and medial articular spaces were associated with angled glenoid fossae. Higher mean values of the articular space sizes were associated with normal disk position (P <.001), except for the anterior articular space. When displacement was identified, higher values of the articular space sizes were also associated with disk reduction in the open-mouth position (P <.05). Conclusions Condyles in the central position in the coronal view and slightly anteriorly positioned in the sagittal view are less likely to present disk displacement.
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U2 - 10.1016/j.oooo.2017.04.007
DO - 10.1016/j.oooo.2017.04.007
M3 - Article
C2 - 28602259
AN - SCOPUS:85020258960
SN - 2212-4403
VL - 124
SP - 199
EP - 207
JO - Oral surgery, oral medicine, oral pathology and oral radiology
JF - Oral surgery, oral medicine, oral pathology and oral radiology
IS - 2
ER -