CBCT analysis of bony changes associated with temporomandibular disorders

Talaat, Wael; Bayatti, Saad Al; Kawas, Sausan Al

doi:10.1179/2151090315y.0000000002

Cited by 45 publications

(45 citation statements)

References 18 publications

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“… 21 22 TMDs have been associated with condylar position in the glenoid fossa, 23 as well as bony and morphological changes of the condyle. 24 Slavicek 25 indicated that the 3D position of the mandibular bone was affected by the contact relationship of the teeth, and that structural adaptation of the TMJ was related to the eruption and coupling of permanent teeth. Therefore, all patients with Class II subdivision malocclusion included in the current study had to meet one of the following inclusion criteria: over 18 years of age and the eruption of all permanent teeth, excluding the third molars.…”

Section: Discussionmentioning

confidence: 99%

Cone-beam computed tomographic evaluation of the temporomandibular joint and dental characteristics of patients with Class II subdivision malocclusion and asymmetry

Huang

et al. 2017

Korean J Orthod

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ObjectiveTreating Class II subdivision malocclusion with asymmetry has been a challenge for orthodontists because of the complicated characteristics of asymmetry. This study aimed to explore the characteristics of dental and skeletal asymmetry in Class II subdivision malocclusion, and to assess the relationship between the condyle-glenoid fossa and first molar.MethodsCone-beam computed tomographic images of 32 patients with Class II subdivision malocclusion were three-dimensionally reconstructed using the Mimics software. Forty-five anatomic landmarks on the reconstructed structures were selected and 27 linear and angular measurements were performed. Paired-samples t-tests were used to compare the average differences between the Class I and Class II sides; Pearson correlation coefficient (r) was used for analyzing the linear association.ResultsThe faciolingual crown angulation of the mandibular first molar (p < 0.05), sagittal position of the maxillary and mandibular first molars (p < 0.01), condylar head height (p < 0.01), condylar process height (p < 0.05), and angle of the posterior wall of the articular tubercle and coronal position of the glenoid fossa (p < 0.01) were significantly different between the two sides. The morphology and position of the condyle-glenoid fossa significantly correlated with the three-dimensional changes in the first molar.ConclusionsAsymmetry in the sagittal position of the maxillary and mandibular first molars between the two sides and significant lingual inclination of the mandibular first molar on the Class II side were the dental characteristics of Class II subdivision malocclusion. Condylar morphology and glenoid fossa position asymmetries were the major components of skeletal asymmetry and were well correlated with the three-dimensional position of the first molar.

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Section: Discussionmentioning

confidence: 99%

Cone-beam computed tomographic evaluation of the temporomandibular joint and dental characteristics of patients with Class II subdivision malocclusion and asymmetry

Huang

et al. 2017

Korean J Orthod

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“…19 These conflicting findings may result from differences in imaging techniques, 19 the diagnostic criteria for osteoarthritis, 18,19 age groups, 19 or ethnic diversity. 18,19 In a recent study, Talaat et al 20 performed a CBCT analysis of the bony changes associated with temporomandibular disorders (TMD) and found that osteoarthritic joints had significantly more condylar irregularities, osteophytes, and condylar flattening than non-TMD joints. The different signs CBCT findings in TMJ osteoarthritis 5 21 Statistically significant correlations were found for only four out of 32 paired comparisons.…”

mentioning

confidence: 99%

Temporomandibular joint osteoarthritis: cone beam computed tomography findings, clinical features, and correlations

Kılıç

Sümbüllü

2015

International Journal of Oral and Maxillofacial Surgery

109

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“…The main disadvantage of CT, compared to other radiological methods, is the high cost and the radiation exposure. Being introduced in TMJ evaluation in 1990s, cone beam CT ( Figures 6 and 7 ) is widely available now and provides high-resolution multiplanar reconstruction of the TMJ [ 31 , 32 ]. The main advantage of cone beam CT, compared to CT, is the lower radiation dose to the patient [ 33 – 35 ].…”

Section: Temporomandibular Joint Imagingmentioning

confidence: 99%

Imaging modalities for temporomandibular joint disorders: an update

Talmaceanu

Lenghel

Bolog

et al. 2018

Medicine and Pharmacy Reports

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The diagnosis and management of temporomandibular disorders (TMD) require both clinical and imaging examinations of the temporomandibular joint (TMJ). A variety of modalities can be used to image the TMJ, including magnetic resonance imaging (MRI), computed tomography (CT), cone beam CT, ultrasonography, conventional radiography. The present review outlines the indications of the most frequently used imaging techniques in TMD diagnosis.Because of the anatomic complexity of the TMJ, imaging can be difficult. Choosing the proper imaging technique is essential. Conventional radiography, nowadays, is of limited interest. The use of flat plane films for TMJ pathology is not sufficient, because this joint requires three dimensional imaging views. Osseous changes are better visualized with CT and cone beam CT. Cone beam CT provides high-resolution multiplanar reconstruction of the TMJ, with a low radiation dose, without superimposition of the bony structures. MRI is a noninvasive technique, considered to be the gold standard in imaging the soft tissue components of the TMJ. MRI is used to evaluate the articular disc in terms of location and morphology. Moreover, the early signs of TMD and the presence of joint effusion can be determined. High-resolution ultrasonography is a noninvasive, dynamic, inexpensive imaging technique, which can be useful in diagnosing TMJ disc displacements. The diagnostic value of high-resolution ultrasonography is strictly dependent on the examiner’s skills and on the equipment used.

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CBCT analysis of bony changes associated with temporomandibular disorders

Abstract: Cone-beam computerized tomography findings are significantly associated with the clinical diagnosis of TMD. Osteophytes and flattening of the condylar surface are common features of TMD.

Cited by 45 publications

References 18 publications

Cone-beam computed tomographic evaluation of the temporomandibular joint and dental characteristics of patients with Class II subdivision malocclusion and asymmetry

Cone-beam computed tomographic evaluation of the temporomandibular joint and dental characteristics of patients with Class II subdivision malocclusion and asymmetry

Temporomandibular joint osteoarthritis: cone beam computed tomography findings, clinical features, and correlations

Imaging modalities for temporomandibular joint disorders: an update

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