Radiological examination of the articular eminence morphology using cone beam CT

Abstract

Objective: The purpose of the present study was to investigate the articular eminence inclination and height according to age and gender in patients with temporomandibular joint (TMJ) dysfunction and healthy controls using cone beam CT (CBCT). Methods: The measurements were performed on CBCT records of 52 TMJ dysfunction patients (11 males and 41 females) and 41 control patients (17 males and 24 females). The eminence inclination and height were measured on the CBCT images. Results: The eminence inclination and height values were higher in males than in females in both TMJ dysfunction patient and control groups; however, these differences were not statistically significant (p . 0.05). While no statistically significant differences were found in the eminence inclination and height values between the age groups (p . 0.05) in the TMJ dysfunction patient group, there were statistically significant differences in the control group. The eminence inclination was highest between the ages of 21 and 30 years and showed a decrease after the age of 30 years. Additionally, the eminence inclinations of the control patients were statistically higher than those of the TMJ dysfunction patients. Conclusion: There were no statistically significant differences in eminence inclination and height according to gender. The eminence inclination reaches its highest value between the ages of 21 and 30 years and shows a decrease after the age of 31 years in healthy patients. The eminence inclination was steeper in healthy control patients than in patients with TMJ dysfunction.

Relationship between articular eminence inclination and alterations of the mandibular condyle: a CBCT study

“…Importantly, both methods have shown similar AE angle values. 7,8,19 The inclination of the AE is therefore defined as the angle formed by one of the lines that passes through the AE and the Frankfort horizontal plane or any other horizontal plane, such as the occlusal plane or palatal plane 9 . The horizontal plane used as the reference in this study was the palatal plane (formed between the anterior nasal spine and posterior nasal spine), since it is easy to define in multiplanar reconstruction in the axial and sagittal slices of the software used.…”

“…The horizontal plane used as the reference in this study was the palatal plane (formed between the anterior nasal spine and posterior nasal spine), since it is easy to define in multiplanar reconstruction in the axial and sagittal slices of the software used. In contrast, Estomaguio et al, 2 Csadó et al, 4 Çağlayan et al 7 and Sümbüllü et al 19 used the Frankfort horizontal plane (formed by a line connecting the porion to the infraorbital foramen) as the reference plane. In our study, the Frankfort horizontal plane was not used, because the infraorbital foramen was out of the field of view in most of the exams studied.…”

Temporomandibular joint diagnostics using CBCT

“…CBCT has been applied in the evaluation of bifid mandibular condyles, 98,99 coronoid hyperplasia 100 and articular eminence morphology [101][102][103] and to assess condylar remodelling accompanying splint therapy. 104 The superior semi-circular canal of the vestibulum system was investigated in patients with TMJ symptoms suggesting a possible relationship between a specific morphological pattern; the dehiscence of its roof and symptoms.…”

Evaluation of Pneumatization in the Articular Eminence and Roof of the Glenoid Fossa with Cone-Beam Computed Tomography

“…There is wide variability in the extent of temporal aeration. In some patients, air cells are limited to the roof of the temporomandibular joint (TMJ) fossa, whereas they extend into the articular eminence in others (1,3). The air cells in the root of the zygomatic arch and in the articular eminence of the temporal bone were defined as PAT by Tyndall and Matteson (4).…”