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

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Junli Ma ◽  
Jiazhu Wang ◽  
Dongzong Huang ◽  
Zhaowu Wang ◽  
Min Hu ◽  
...  
Keyword(s):  
Temporomandibular Disorders ◽  
Structural Changes ◽  
Cone Beam ◽  
Glenoid Fossa ◽  
Articular Eminence ◽  
Computed Tomographic ◽  
Computed Tomography Images ◽  
Side Preference ◽  
Characteristic Imaging ◽  
Bilateral Differences

Abstract Background Chewing 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. Methods Cone-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) Results IAE 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. Conclusions TMD patients with CSP seem to have a deep glenoid fossa with steep eminence which might be considered one characteristic imaging feature.

scholarly journals Prevalence and Characteristics of Articular Eminence Pneumatization: A Cone-Beam Computed Tomographic Study

2017 ◽  
Vol 17 (3) ◽  
pp. 339-344 ◽  
Author(s):  
Leila Khojastepour ◽  
Maryam Paknahad ◽  
Vida Abdalipur ◽  
Majid Paknahad
Keyword(s):  
Cone Beam ◽  
Articular Eminence ◽  
Computed Tomographic

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

2015 ◽  
Vol 32 (1) ◽  
pp. 64-68 ◽  
Author(s):  
Mehmet Ilguy ◽  
Semanur Dolekoglu ◽  
Erdogan Fisekcioglu ◽  
Nilufer Ersan ◽  
Dilhan Ilguy
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Glenoid Fossa ◽  
Articular Eminence

Improved Visualization and Assessment of Condylar Position in the Glenoid Fossa for Different Occlusions: A CBCT Study

2016 ◽  
Vol 17 (8) ◽  
pp. 679-686 ◽  
Author(s):  
Amandeep Kaur ◽  
Amanpreet S Natt ◽  
Simranjeet K Mehra ◽  
Karan Maheshwari ◽  
Amanjot Kaur
Keyword(s):  
Orthodontic Treatment ◽  
Sagittal Plane ◽  
Frontal Plane ◽  
Cone Beam ◽  
Glenoid Fossa ◽  
Computed Tomographic ◽  
Significant Difference ◽  
Condylar Position ◽  
The Stability ◽  
The Right

ABSTRACT Introduction The position of the condyle in the glenoid fossa plays an important role in the stability of occlusion after orthodontic treatment. Cone beam computed tomography (CBCT) provides an optimal imaging of the osseous components of the temporomandibular joint (TMJ) and give a full size truly threedimensional (3D) description in real anatomical size. The present study aimed to visualize and compare the position of condyle in the glenoid fossa for different occlusions by using CBCT. Materials and methods Cone beam computed tomographic images of 45 subjects, aged 18 to 42 years, were evaluated. Subjects were equally divided into three groups according to the A point, nasion, B point (ANB) angle. Results In the sagittal plane, condyle is positioned nonconcentrically; positioned anteriosuperiorly in class I and III occlusions and lies posteriosuperiorly in class II occlusion. In the frontal plane, condyle is positioned centrally (mediolaterally) in all the three types of occlusions. In the axial plane, the parameters showed significant difference between the different occlusions. No statistical significant distinction could be made in the position of the condyle when comparing the right and left joints. Conclusion The position of condyle in glenoid fossa influences sagittal, transverse, and vertical relationships of the jaws which eventually contribute to development of various malocclusions. Nonconcentricity is the feature of the condyle in the sagittal plane in different malocclusions. Clinical significance An important consideration in orthodontic treatment is the recognition of the importance that the dentition should be in harmony with the related musculoskeletal structures. Therefore, the condylar position is an important concern in maintaining or restoring temporomandibular harmony with the dentition and the position of the condyle in the glenoid fossa plays an important role in the stability of occlusion after orthodontic treatment. How to cite this article Kaur A, Natt AS, Mehra SK, Maheshwari K, Singh G, Kaur A. Improved Visualization and Assessment of Condylar Position in the Glenoid Fossa for Different Occlusions: A CBCT Study. J Contemp Dent Pract 2016;17(8):679-686.

scholarly journals Temporomandibular Joints’ Morphology and Osteoarthritic Changes in Cone-Beam Computed Tomography Images in Patients with and without Reciprocal Clicking—A Case Control Study

2020 ◽  
Vol 17 (10) ◽  
pp. 3428
Author(s):  
Marcin Derwich ◽  
Maria Mitus-Kenig ◽  
Elzbieta Pawlowska
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Orthodontic Treatment ◽  
Statistical Significance ◽  
Cone Beam ◽  
Glenoid Fossa ◽  
Computed Tomography Images ◽  
Temporomandibular Joints ◽  
Condylar Head ◽  
Reciprocal Clicking

Background: Patients referred for orthodontic treatment often present symptoms of temporomandibular joints’ disorders (TMD), predominantly clicking. The objective was to analyze the morphology of the temporomandibular joints in cone-beam computed tomography (CBCT) images based on the presence of reciprocal clicking before orthodontic treatment. Methods: 105 participants took part in the study. 210 temporomandibular joints (TMJs) were allocated into one of two groups regarding the presence of reciprocal clicking. Morphology of condyle’s head, glenoid fossa, and articular eminence as well as condylar head position in the glenoid fossa and osteoarthritic changes in the area of the condylar head were examined for each TMJ in the CBCT images. Statistical analysis was performed with STATISTICA version 12.0. The following tests were performed: U-Mann Whitney, Kruskal-Wallis, t-Student, and chi-square. The statistical significance level was p = 0.05 for all the measurements included. Results: Significantly smaller condylar A-P dimension (p = 0.040) characterized temporomandibular joints with reciprocal clicking. Condyles were substantially more often positioned posteriorly (p = 0.043) and were significantly more often accompanied by subcortical cysts and pathologic osteoarthritic bone changes (p < 0.001). Conclusions: The early stages of internal derangements stay with alterations in morphology and position of TMJs as well as with the presence of osteoarthritic changes.

scholarly journals Evaluation of condylar positions in patients with temporomandibular disorders: A cone-beam computed tomographic study

2016 ◽  
Vol 46 (2) ◽  
pp. 127 ◽  
Author(s):  
Mahrokh Imanimoghaddam ◽  
Azam Sadat Madani ◽  
Pirooze Mahdavi ◽  
Ali Bagherpour ◽  
Mansoreh Darijani ◽  
...  
Keyword(s):  
Temporomandibular Disorders ◽  
Cone Beam ◽  
Computed Tomographic
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