scholarly journals Comparative Assessment of the Possibility to Detect Early Signs of Joint Changes of the Temporomandibular Joint Using Cone-Beam Computed Tomography and Ultrasound Examination

2021 ◽  
Vol 6 (5) ◽  
pp. 309-315
Author(s):  
I. O. Pohodenko-Chudakova ◽  
◽  
M. I. Krat ◽  
Keyword(s):  
Computed Tomography ◽  
Comparative Analysis ◽  
Temporomandibular Joint ◽  
Cone Beam Computed Tomography ◽  
Ultrasound Examination ◽  
Screening Method ◽  
Temporomandibular Joint Disorders ◽  
Cone Beam ◽  
Pathological Changes ◽  
Early Signs

The purpose of the study was to carry out a comparative analysis of the possibility of detecting early signs of articular changes in the temporomandibular joint with cone-beam computed tomography and ultrasound. Materials and methods. 20 patients with complaints of temporomandibular joint (16 women and 4 men) were examined who stated that the first symptoms associated with the joint appeared from 6 months to 1 year. Examination of patients with temporomandibular joint pathology included consultation of the patient by a dentist with the involvement of radiation research methods. During the examination by dentist, the odontogenic nature of the temporomandibular joint disorders was excluded or confirmed. Cone-beam computed tomography and ultrasound of the temporomandibular joint were performed in all patients according to standard methods. The comparative analysis was carried out on the basis of clinical examples with the conclusions of a specialist doctor in the field of radiation diagnostics and radiation therapy. Results and discussion. Pathology of the temporomandibular joint due to morphological and functional changes occurs in 40-75% of adult and occupies the third place in the list of the main nosological forms of dental diseases. At the same time, it is known that the use of radiation methods for diagnostics of surgical pathology in maxillofacial area of odontogenic and non-odontogenic etiology in the Republic of Belarus is provided by clinical protocols. A comparative analysis of the conclusion of patients who underwent cone-beam computed tomography and ultrasound of the temporomandibular joints allows us to conclude that ultrasound examination allows us to state early changes occurring in the temporomandibular joint. Therefore, the possibility of early diagnosis contributes to the appointment of an adequate and rational complex of therapeutic and rehabilitation measures which is important for stopping the progress of pathological changes. Also with the help of ultrasound, it is possible to establish signs of the development of various forms of osteoarthritis which are not detected on the cone-beam computed tomography at the initial stages of development. In addition, ultrasound allows to visualize changes occurring in soft tissues such as the articular disc which is not available for cone-beam computed tomography. Conclusion. The obtained results allow us to recommend ultrasound examination of the temporomandibular joint as a screening method and a method of the first level of examination in order to detect pathological changes from both bone and soft tissue structures of the joint as early as possible

scholarly journals Evaluation of temporomandibular joint disorders using cone beam computed tomography

2017 ◽  
Vol 3 (4) ◽  
pp. 698
Author(s):  
Sonam Kohli ◽  
Rahul Krishan Sharma ◽  
Anchal Goel ◽  
M. K. Sunil
Keyword(s):  
Computed Tomography ◽  
Temporomandibular Joint ◽  
Cone Beam Computed Tomography ◽  
Joint Space ◽  
Temporomandibular Joint Disorders ◽  
Cone Beam ◽  
Glenoid Fossa ◽  
Significant Difference ◽  
Mandibular Fossa ◽  
Osseous Changes

<p class="abstract"><strong>Background:</strong> <span lang="EN-IN">The aim of this study was to evaluate efficacy of segmental cone beam computed tomography (CBCT) in detecting bony changes in condyle and thickness of roof of glenoid fossa in temporomandibular joint (TMJ) disorders.</span></p><p class="abstract"><strong>Methods:</strong> The study group comprised of 10 temporomandibular disorders (TMD) patients of either sex between the age group of 20-60 years diagnosed as TMDs by clinical evaluation using the research diagnostic criteria was considered. After the clinical examination, radiographic investigations were carried out which included digital OPG, transcranial radiograph and CBCT scan. TMJ Evaluation included: (a) bony changes of the condyle (flattening, erosion, sclerosis, osteophytes, resorption); (b) joint space (normal, increased, reduced, bony contact between the condyle and the mandibular fossa); and (c) bony changes of mandibular fossa (normal, sclerosis, erosion, resorption). The radiographic findings were statistically analysed.<strong></strong></p><p class="abstract"><strong>Results:</strong> <span lang="EN-IN">Significant difference between OPG, transcranial and CBCT were found for the presence of erosion (P =0.000), thickness of roof of glenoid fossa (P =0.000), deformed contour (P =0.001), joint space (P =0.011), subchondral sclerosis (P =0.011), irregularity of articular surface and eminence (P =0.000), flattening (P =0.050). </span></p><p class="abstract"><strong>Conclusions:</strong> Using CBCT as imaging technique in our study to detect osseous changes in the TMJ was proved to be effective as compared to the conventional radiographic techniques, the results achieved with CBCT was 100%.The results obtained in our study prove to be a full proof one and it seems to promise to go one step closer to detect progression and severity of the osseous changes in the condylar head and mandibular fossa in patients with TMDs<span lang="EN-IN">.</span></p>

scholarly journals New Method for Analysis of the Temporomandibular Joint Using Cone Beam Computed Tomography

Sensors ◽  
2021 ◽  
Vol 21 (9) ◽  
pp. 3070
Author(s):  
Sebastian Iwaszenko ◽  
Jakub Munk ◽  
Stefan Baron ◽  
Adam Smoliński
Keyword(s):  
Computed Tomography ◽  
Temporomandibular Joint ◽  
Cross Section ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Section Plane ◽  
New Approach ◽  
Volume Of Interest ◽  
Gap Width

Modern dentistry commonly uses a variety of imaging methods to support diagnosis and treatment. Among them, cone beam computed tomography (CBCT) is particularly useful in presenting head structures, such as the temporomandibular joint (TMJ). The determination of the morphology of the joint is an important part of the diagnosis as well as the monitoring of the treatment results. It can be accomplished by measurement of the TMJ gap width at three selected places, taken at a specific cross-section. This study presents a new approach to these measurements. First, the CBCT images are denoised using curvilinear methods, and the volume of interest is determined. Then, the orientation of the vertical cross-section plane is computed based on segmented axial sections of the TMJ head. Finally, the cross-section plane is used to determine the standardized locations, at which the width of the gap between condyle and fossa is measured. The elaborated method was tested on selected TMJ CBCT scans with satisfactory results. The proposed solution lays the basis for the development of an autonomous method of TMJ index identification.

scholarly journals Temporomandibular Joint Osseous Morphology of Class I and Class II Malocclusions in the Normal Skeletal Pattern: A Cone-Beam Computed Tomography Study

Diagnostics ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 541
Author(s):  
Xiao-Chuan Fan ◽  
Lin-Sha Ma ◽  
Li Chen ◽  
Diwakar Singh ◽  
Xiaohui Rausch-Fan ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Temporomandibular Joint ◽  
Cone Beam Computed Tomography ◽  
Class Ii ◽  
Class I ◽  
Cone Beam ◽  
Glenoid Fossa ◽  
Linear Measurements ◽  
Significant Difference ◽  
Skeletal Pattern

(1) Background—The aim of the present study was to evaluate the correlation between the temporomandibular joint (TMJ) osseous morphology of normal skeletal pattern individuals with different dental malocclusions by using cone-beam computed tomography (CBCT). (2) Methods—The CBCT images of bilateral TMJs in 67 subjects with skeletal class I and average mandibular angle (26 males and 41 females, age range 20–49 years) were evaluated in this study. The subjects were divided into class I, class II division 1, and class II division 2 according to the molar relationship and retroclination of the maxillary incisors. Angular and linear measurements of TMJ were evaluated and the differences between the groups were statistically analyzed. (3) Results—Intragroup comparisons showed statistical differences for articular eminence inclination, the width of the glenoid fossa, the ratio of the width of the glenoid fossa to the depth of the glenoid fossa, the condylar angle, and the intercondylar angle between the malocclusion groups. The measurements of the glenoid fossa shape showed no significant difference between the left and right sides. Females showed more differences in the morphological parameters of TMJ between the three malocclusion groups than the males. (4) Conclusion—The present study revealed differences in the TMJ osseous morphology between dental class I and class II malocclusions in the normal skeletal pattern.

scholarly journals Comparative analysis between mandibular positions in centric relation and maximum intercuspation by cone beam computed tomography (CONE-BEAM)

2009 ◽  
Vol 17 (spe) ◽  
pp. 27-34 ◽  
Author(s):  
Amanda de Freitas Ferreira ◽  
João César Guimarães Henriques ◽  
Guilherme Araújo Almeida ◽  
Asbel Rodrigues Machado ◽  
Naila Aparecida de Godoi Machado ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Comparative Analysis ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Centric Relation
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