A comparative study of accuracy of detection of surface osseous changes in the temporomandibular joint using multidetector computed tomography and cone beam computed tomography

Zain-Alabdeen, Ebtihal H; Alsadhan, R. I.

doi:10.1259/dmfr/24985981

Cited by 5 publications

(4 citation statements)

References 13 publications

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“…14 However, the sensitivities were found to be lower and thus in accordance with Hintze et al 12 The fact that CBCT has a diagnostic accuracy comparable with CT 11,14 was confirmed when assessing condylar fractures in an experimental study on sheep. 15 The sensitivity of CBCT for assessing bone defects is dependent on the size of the defects, as demonstrated by Marques et al 16 and confirmed by Patel et al 17 in their investigations of simulated condylar lesions.…”

Section: Diagnostic Accuracysupporting

confidence: 55%

Temporomandibular joint diagnostics using CBCT

Ak²,

Kristensen³

et al. 2015

Dentomaxillofacial Radiology

222

128

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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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Section: Diagnostic Accuracysupporting

confidence: 55%

Temporomandibular joint diagnostics using CBCT

Ak²,

Kristensen³

et al. 2015

Dentomaxillofacial Radiology

222

128

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show abstract

“…1 Recent studies have revealed that CBCT is a reliable alternative to multislice CT for the assessment of TMJ space and osseous changes. 2,3 Nowadays, CBCT scanners are available that can give users a choice between high and low spatial resolution settings when scanning a patient. In theory, the higher the number of the spatial resolution used for scanning, the smaller the radiographic details can be observed in the resultant images.…”

Section: Introductionmentioning

confidence: 99%

Detection accuracy of condylar defects in cone beam CT images scanned with different resolutions and units

Shi²,

Ma³

et al. 2014

Dentomaxillofacial Radiology

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Objectives: To assess the impact of spatial resolution and cone beam CT (CBCT) unit on CBCT images for the detection accuracy of condylar defects. Methods: 42 temporomandibular joints were scanned, respectively, with the CBCT units ProMax® 3D (Planmeca Oy, Helsinki, Finland) and DCT PRO (Vatech, Co., Ltd., YonginSi, Republic of Korea) at normal and high resolutions. Seven dentists evaluated all the test images with respect to the presence or the absence of condylar defects. Receiver operating characteristic curve analysis was employed to define the detection accuracy. Two-way analysis of variance was used to analyse the values under the receiver operating characteristic curves for the differences among imaging groups and observers. Intraobserver variation was analysed using the Wilcoxon test. Results: Macroscopic anatomy examination revealed that, of the 42 temporomandibular joint condylar surfaces, 18 were normal and 24 had defects on the surface of condyles. No significant differences were found between the images scanned with normal and high resolutions for both CBCT units ProMax 3D (p 5 0.119) and DCT PRO (p 5 0.740). Significant differences exist between image groups of DCT PRO and ProMax 3D (p , 0.05). Neither the inter-nor the intraobserver variability were significant. Conclusions: The spatial resolution per se did not have an impact on the detection accuracy of condylar defects. The detection accuracy of condylar defects highly depends on the CBCT unit used for examination.

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“…With regard to the method employed, the applicability of CBCT in Dentistry appears to be questionable because some studies 19,[22][23][24][25][26] claimed that the CBCT was a reliable and accurate method for verification of changes and carry out measures in TMJ as a whole and specifically in the mandibular condyles. This is especially true when the sagittal and coronal views are considered, being efficient in the determination of changes related to the positioning and shape of the condyle and joint surfaces 27,28 .…”

mentioning

confidence: 99%

Comparative dimensional tomographic study of the mandibular condyle of individuals with transverse maxillary deficiency

et al. 2017

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Transverse maxillary deficiency is characterized by posterior uni or bilateral crossbite, crowded and rotated teeth, as well as high palate. Its treatment in adult individuals is surgically assisted rapid palatal expansion. The aim of this study was to verify the occurrence of dimensional alterations in the mandibular condyles of patients with TMD submitted to surgically assisted maxillary expansion. Measurements of the mandibular condyles using the DISTANCE tool in cone beam computed tomography iCat software were performed. The values obtained were submitted to statistical analysis by the paired t-test and the results showed statistically significant dimensional reduction in the axial posterior-anterior lateral (-0.74mm), axial posterior-anterior lateral left (-0.90mm) and coronal medium right (-1.24mm) dimensions. The coronal inferior (1.13mm), coronal inferior left (1.78mm) and coronal superior-inferior right (0.76mm) measurements showed statistically significant dimensional increase. The results allowed us to conclude that dimensional alterations occurred in the mandibular condyles in individuals with maxillary transversal deficiency that underwent surgically assisted rapid palatal expansion (SAPE), which can be understood by remodeling, since they are characterized by dimensional increase or reduction, depending on the location where the measurement was performed.

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A comparative study of accuracy of detection of surface osseous changes in the temporomandibular joint using multidetector computed tomography and cone beam computed tomography

Abstract: CBCT and MDCT accuracy was comparable in detecting surface osseous changes with comparable intraobserver reliabilities. However, since CBCT requires less radiation exposure, it should be encouraged for imaging TMJ with suspected surface osseous changes.

Cited by 5 publications

References 13 publications

Temporomandibular joint diagnostics using CBCT

Temporomandibular joint diagnostics using CBCT

Detection accuracy of condylar defects in cone beam CT images scanned with different resolutions and units

Comparative dimensional tomographic study of the mandibular condyle of individuals with transverse maxillary deficiency

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