Cone-beam computed tomographic assessment of the inclination of the articular eminence in patients with temporomandibular disorders and chewing side preference

BMC Oral Health

Hongchen Liu¹  Jiazhu Wang¹  Zhaowu Wang¹  Min Hu¹  Dongzong Huang¹  Hua Jiang¹  Junli Ma² 

[1] Department of Stomatology, Chinese PLA General Hospital, No. 28 FuXing Road, 100853, Beijing, People’s Republic of China;Department of Stomatology, General Hospital of Southern Theater of PLA, Guangzhou, People’s Republic of China;

关键词: Cone-beam computed tomography;    Chewing-side preference;    Temporomandibular joint;    Glenoid fossa;    Articular eminence inclination;    Temporomandibular disorders;   

DOI  :  10.1186/s12903-021-01760-4

来源: Springer

【 摘 要 】

BackgroundChewing side preference (CSP) has been proposed as one etiology of temporomandibular disorders (TMDs) as it can induce the structural changes of the temporomandibular joint. But its association with the inclination of the articular eminence (IAE) is unknown. This study aimed to compare IAE between patients with CSP and without CSP.MethodsCone-beam computed tomography images of 90 patients with TMD (mean age of 45.6 years, 69 with CSP, 21 without CSP) and 20 participants without TMD and CSP (mean age of 41.3 years) were measured to compare IAE and depth of the glenoid fossa (DGF)ResultsIAE and DGF showed a positive correlation among all the participants. Compared with the participants without TMD and CSP, the TMD patients without CSP presented a similar IAE but with a significantly higher value of DGF (p < 0.05); in contrast, the TMD patients with CSP presented a significantly greater IAE and DGF (p < 0.05). No bilateral differences in IAE and DGF were observed in all the participants. Except the male patients with CSP had a deeper fossa than did the female, no differences in IAE and DGF according to gender were observed.ConclusionsTMD patients with CSP seem to have a deep glenoid fossa with steep eminence which might be considered one characteristic imaging feature.

【 授权许可】

CC BY