TY - JOUR
T1 - Condyle Excursion Angle, Articular Eminence Inclination, and Temporomandibular Joint Morphologic Relations With Disc Displacement
AU - Rabelo, Katharina Alves
AU - Sousa Melo, Saulo Leonardo
AU - Torres, Marianna Guanaes Gomes
AU - Campos, Paulo Sérgio F.
AU - Bento, Patrícia Meira
AU - Melo, Daniela Pita de
N1 - Publisher Copyright:
© 2017 American Association of Oral and Maxillofacial Surgeons
PY - 2017/5
Y1 - 2017/5
N2 - Purpose The aim of this study was to evaluate the relations of the condyle excursion angle (CEA) and the morphology and morphometry of the articular eminence to disc displacement (DD) using magnetic resonance imaging (MRI) of symptomatic patients. Materials and Methods MRIs of 199 temporomandibular joints (TMJs) were evaluated. Qualitative and quantitative morphologic analyses were performed with tools available in PACS 11.0 (Carestream Health, Inc, Rochester, NY). The articular eminence inclination (AEI), eminence height (EH), CEA, and articular eminence morphologic shape were evaluated. Statistical analyses were used to evaluate any possible association of the variables with DD in the closed- and open-mouth positions, age, and gender. The significance level was set at.05. Results Elderly women (>60 yr) presented higher prevalence values (43.26%). There was no statistical correlation between DD and gender (P =.4290). Higher mean values of the AEI and EH were associated with box-shaped eminences. The EH, AEI, and CEA were not related to the presence or absence of DD and the different types of DD. The AEI (P =.002) and CEA (P <.001) values were higher for TMJs with disc reduction in the open-mouth position. Conclusion Disc position in the closed- and open-mouth positions is not influenced by articular eminence morphology; however, the AEI and CEA have an influence on disc reduction.
AB - Purpose The aim of this study was to evaluate the relations of the condyle excursion angle (CEA) and the morphology and morphometry of the articular eminence to disc displacement (DD) using magnetic resonance imaging (MRI) of symptomatic patients. Materials and Methods MRIs of 199 temporomandibular joints (TMJs) were evaluated. Qualitative and quantitative morphologic analyses were performed with tools available in PACS 11.0 (Carestream Health, Inc, Rochester, NY). The articular eminence inclination (AEI), eminence height (EH), CEA, and articular eminence morphologic shape were evaluated. Statistical analyses were used to evaluate any possible association of the variables with DD in the closed- and open-mouth positions, age, and gender. The significance level was set at.05. Results Elderly women (>60 yr) presented higher prevalence values (43.26%). There was no statistical correlation between DD and gender (P =.4290). Higher mean values of the AEI and EH were associated with box-shaped eminences. The EH, AEI, and CEA were not related to the presence or absence of DD and the different types of DD. The AEI (P =.002) and CEA (P <.001) values were higher for TMJs with disc reduction in the open-mouth position. Conclusion Disc position in the closed- and open-mouth positions is not influenced by articular eminence morphology; however, the AEI and CEA have an influence on disc reduction.
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U2 - 10.1016/j.joms.2017.01.019
DO - 10.1016/j.joms.2017.01.019
M3 - Article
C2 - 28219631
AN - SCOPUS:85014759592
SN - 0278-2391
VL - 75
SP - 938.e1-938.e10
JO - Journal of Oral and Maxillofacial Surgery
JF - Journal of Oral and Maxillofacial Surgery
IS - 5
ER -