Spatial analysis of mandibular condyles in patients with temporomandibular disorders and normal controls using cone beam computed tomography

Abstract

Objectives:The aim of the study is to investigate the condylar position and its relation to articular eminence and axial condylar angle in temporomandibular joint disorder (TMD) patients and in normal controls using cone beam computed tomography (CBCT).Materials and Methods:CBCT temporomandibular joint (TMJ) images of 70 participants (38 males and 32 females, mean age 26.4 years) were analyzed. They were divided into control group (including 35 subjects) and study group (including 35 subjects). Linear measurements of joint space and condyle determined the condylar position of each TMJ. Articular eminence height and inclination were also measured with axial condylar angle to determine its relation to condylar position. Independent and paired sample t-test was applied to compare between the groups and TMJ sides of the same group at significance level of 0.05.Results:Statistical significant differences were found between males and females of both groups regarding superior joint space (SJS), lateral joint space, A-P, and M-L condyle distance (P < 0.05). SJS, medial joint space (MJS), and eminence angle were greater (P < 0.01) in male's joints with TMD with flatter axial condylar angle (P < 0.05), when compared with normal TMJ counterpart. Females TMJs showed significantly higher values of MJS of affected side when compared with normal counterpart with flatter axial condylar angle (P < 0.05).Conclusion:Superior and MJS parameters were the ones that showed significant differences between affected and nonaffected joints. The mean axial condylar angle was smaller in joints with abnormal TMJ. This indicates that the condyles of the affected joints may rotate inward.

Comparison of the Horizontal Condyle Angle of the Dentulous and Edentulous Patients Using Cone Beam Computed Tomography

“…They found the mean HCA of the males with healthy TMJs to be 23.18°, while the mean HCA of the males who had a temporomandibular disorder was found to be 18.36°. The mean HCA of the females with healthy TMJs was found to be 21.19°, while this value for the females with a temporomandibular disorder was 15.63° (11). In our study, there was no significant difference found between the HCAs of the male and female patients, although in the study by Al-Rawi et al there was a significant difference in favor of the males.…”

Concha bullosa, nasal septal deviation, and their impacts on maxillary sinus volume among Emirati people: A cone-beam computed tomography study

“…CBCT is a cost-effective method that is being used with increasing frequency for the diagnosis of maxillofacial structures 14. Maxillofacial and oral radiologists should be familiar with the sino-nasal complex region.…”

Morphological changes in temporomandibular joint dysfunction and effectiveness of different treatment methods

“…[19] Mandibular condyle was classified into four types according to its shape as; convex, flat, angular and round. [20][21][22] The mandibular condyle was evaluated in the coronal PDW sequence in close mouth position ( Figure 4).…”