Cone-beam computed tomography analysis of degenerative changes, condylar excursions and positioning and possible correlations with temporomandibular disorder signs and symptoms

Authors

DOI:

https://doi.org/10.20396/bjos.v21i00.8665442

Keywords:

Cone-beam computed tomography, Mandibular condyle, Signs and symptoms, Temporomandibular joint disorders

Abstract

Aim: To describe cone-beam computed tomography (CBCT) features in patients with temporomandibular disorders (TMDs), in terms of degenerative changes, condylar excursions and positioning as well as their possible correlations with signs and symptoms. Methods: Clinical records of patients diagnosed with TMD who were seen between January 2018 and December 2019 were retrospectively evaluated. These patients were divided into the following groups based on the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD): arthralgia, myalgia, and arthralgia and myalgia groups. The CBCT examination findings of the patients were evaluated in relation to degenerative changes, estimates of condylar excursion, and condylar positioning. The likelihood ratio test was used to verify the possible differences among the three groups, whereas the chi-square test was used to verify the possible differences among the signs and symptoms for the tomographic findings (p ≤ 0.050). Results: In this study, 65 patients with TMD were included. These patients were predominantly female (84.6%) with a mean age of 40.6 years. Tomographic findings of flattening, hyperexcursion and posterior condylar positioning were frequent. A significant correlation was noted between osteophyte and lateral capsule pain (p = 0.027), erosion and posterior capsule pain (p = 0.026), and flattening, pseudocysts (p < 0.050) and condylar excursion (p < 0.001) with mouth opening. Conclusion: Few correlations were noted between degenerative changes and signs of joint pain as well as degenerative changes and condylar hypoexcursion with mouth opening. These correlations were likely associated with division by diagnosis, whereas condylar positioning did not correlate with signs and symptoms.

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Author Biographies

Nayara Stefany Leite-de-Lima, University of São Paulo

Department of Oral and Maxillofacial Surgery, School of Dentistry, University of São Paulo, São Paulo, Brazil.

Eduardo Felippe Duailibi-Neto, University of São Paulo

Department of Stomatology, Division of Radiology, School of Dentistry, University of São Paulo, São Paulo, Brazil.

Israel Chilvarquer , University of São Paulo

Department of Stomatology, Division of Radiology, School of Dentistry, University of São Paulo, São Paulo, Brazil.

João Gualberto Cerqueira Luz, University of São Paulo

Department of Oral and Maxillofacial Surgery, School of Dentistry, University of São Paulo, São Paulo, Brazil.

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Published

2021-11-29

How to Cite

1.
Leite-de-Lima NS, Duailibi-Neto EF, Chilvarquer I, Luz JGC. Cone-beam computed tomography analysis of degenerative changes, condylar excursions and positioning and possible correlations with temporomandibular disorder signs and symptoms . Braz. J. Oral Sci. [Internet]. 2021 Nov. 29 [cited 2022 May 25];21(00):e225442. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8665442

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