Evaluation of bone changes in the temporomandibular joint using cone beam CT

Pontual, Maria Luíza dos Anjos; Freire, Jsl; Barbosa, Jmn; Frazão, Mag; Pontual, Anjos; Silveira, MM Fonseca da

doi:10.1259/dmfr/17815139

Cited by 145 publications

(156 citation statements)

References 29 publications

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“…46 In a series of 319 patients aged 10-89 years, 227 (71%) had bone changes consistent with OA. 47 The prevalence increased with age (except in the oldest age group with few patients) and females had a greater pre-disposition, in accordance with the general view on OA.…”

supporting

confidence: 79%

Temporomandibular joint diagnostics using CBCT

Ak²,

Kristensen³

et al. 2015

Dentomaxillofacial Radiology

206

106

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The present review will give an update on temporomandibular joint (TMJ) imaging using CBCT. It will focus on diagnostic accuracy and the value of CBCT compared with other imaging modalities for the evaluation of TMJs in different categories of patients; osteoarthritis (OA), juvenile OA, rheumatoid arthritis and related joint diseases, juvenile idiopathic arthritis and other intra-articular conditions. Finally, sections on other aspects of CBCT research related to the TMJ, clinical decision-making and concluding remarks are added. CBCT has emerged as a cost-and dose-effective imaging modality for the diagnostic assessment of a variety of TMJ conditions. The imaging modality has been found to be superior to conventional radiographical examinations as well as MRI in assessment of the TMJ. However, it should be emphasized that the diagnostic information obtained is limited to the morphology of the osseous joint components, cortical bone integrity and subcortical bone destruction/production. For evaluation of soft-tissue abnormalities, MRI is mandatory. There is an obvious need for research on the impact of CBCT examinations on patient outcome.

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supporting

confidence: 79%

Temporomandibular joint diagnostics using CBCT

Ak²,

Kristensen³

et al. 2015

Dentomaxillofacial Radiology

206

106

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“…In previous epidemiologic, mainly cross-sectional, studies, the prevalence has been reported to vary between 6% and 71%. [17][18][19] Furthermore, longitudinal studies have disclosed a significant and unpredictable fluctuation of TMD over time. 20,21 In the aforementioned studies of TMD both the TMJ and the associate musculature were considered.…”

Section: Discussionmentioning

confidence: 99%

Signs and symptoms of TMJ disorders in adults after adolescent Herbst therapy: A 6-year and 32-year radiographic and clinical follow-up study

Pancherz

Salé

Bjerklin

2014

The Angle Orthodontist

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Objective: To analyze radiographic signs of temperomandibular joint (TMJ) osteoarthritis and clinical TMJ symptoms in patients 6 years and 32 years after treatment with a Herbst appliance. Materials and Methods: Fourteen patients were derived from a sample of 22 with Class II division 1 malocclusions consecutively treated with a banded Herbst appliance at the age of 12-14 years old (T1-T2). The subjects were reexamined after therapy at the ages of 20 years (T3) and 46 years (T4). The TMJs of the 14 patients were analyzed radiographically (conventional lateral tomography at T3 and cone-beam computed tomography at T4) and clinically/anamnestically at T3 and T4. Results: Six years after Herbst therapy, signs of osteoarthritis were seen in one patient. At the 32-year follow-up, two additional patients had developed signs of osteoarthritis. At the 6-year followup, TMJ clicking was present in two patients, though none of the patients reported TMJ pain. At the 32-year follow-up, six patients had TMJ clicking and one patient had TMJ pain. Conclusions: This longitudinal very-long-term follow-up study after Herbst therapy revealed only minor problems from the TMJ. The TMJ findings 6 years and 32 years after Herbst treatment corresponded to those in the general population. Thus, in the very long term, the Herbst appliance does not appear to be harmful to the TMJ. (Angle Orthod. 2015;85:735-742.)

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“…However, several studies were reported with regard to the usefulness of CBCT images in the evaluation of TMJ bone erosions. [10][11][12][13]19 In one study, the diagnostic efficacy of condylar erosions was assessed with CBCT images scanned with different voxel sizes and FOVs. In this study, the CBCT scanner CB MercuRay (Hitachi Medical, Twinsburgh, OH) was used and the CBCT images were acquired with a 15 cm FOV at a voxel size of 0.2 mm, a 22.5 cm FOV at a voxel size of 0.3 mm and a 30 cm FOV at a voxel size of 0.4 mm.…”

Section: Discussionmentioning

confidence: 99%

“…[5][6][7][8][9] The technique can also provide a complete radiographic investigation of the bony components of the TMJ. [10][11][12][13] Recent studies have revealed that CBCT is a reliable alternative to multislice CT for the assessment of the TMJ space and osseous changes. 14,15 For the purposes of different diagnostic tasks and minimizing the radiation dose to patients, nowadays CBCT scanners allow users to select the field of view (FOV), high-or low-spatial resolution and patient size when scanning a patient.…”

Section: Introductionmentioning

confidence: 99%

Detection accuracy of condylar bony defects in Promax 3D cone beam CT images scanned with different protocols

Zl¹,

Jg²,

G³

et al. 2013

Dentomaxillofacial Radiology

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Objectives: To investigate and compare the detection accuracy of bony defects on the condylar surface of the temporomandibular joint (TMJ) in cone beam CT (CBCT) images scanned with standard and large view protocols on the same machine. Methods: 21 dry human skulls with 42 TMJs were scanned with the large view and standard view protocols of the CBCT scanner Promax 3D (Planmeca, Helsinki, Finland). Seven observers evaluated all the images for the presence or absence of defects on the surface of the condyle. Using the macroscopic examination of condylar defects as the gold standard, receiver operating characteristic (ROC) analysis was performed. Results: Macroscopic examination revealed that, of the 42 condyles, 18 were normal and 24 had a defect on the surface of the condyles. Areas under the ROC curves for the large view and the standard view group of CBCT images were 0.739 and 0.720, respectively, and no significant difference was found between the two groups of images (p 5 0.902). Neither the interobserver nor the intraobserver variability were significant. Conclusions: The two scanning protocols provided by the CBCT scanner Promax 3D were reliable and comparable with detection of condylar defects.

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Evaluation of bone changes in the temporomandibular joint using cone beam CT

Cited by 145 publications

References 29 publications

Temporomandibular joint diagnostics using CBCT

Temporomandibular joint diagnostics using CBCT

Signs and symptoms of TMJ disorders in adults after adolescent Herbst therapy: A 6-year and 32-year radiographic and clinical follow-up study

Detection accuracy of condylar bony defects in Promax 3D cone beam CT images scanned with different protocols

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