Interpretation of mandibular condyle fractures using 2D- and 3D-computed tomography

Santiago, Adriana Paula de Andrade da Costa e Silva; Antunes, José Leopoldo Ferreira; Cavalcanti, Marcelo Gusmão Paraíso

doi:10.1590/s0103-64402003000300012

Cited by 24 publications

(11 citation statements)

References 13 publications

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“…Clinical signs include difficulty in opening the mouth, malocclusion (particularly open bite of the contralateral side), and oedema in the peripheral region of the auricle. 46 CBCT imaging demonstrates the fracture location (intracapsular, extracapsular or subcondylar), its direction and the presence and degree of displacement (Fig. 6).…”

Section: Traumamentioning

confidence: 99%

Application of cone beam computed tomography for assessment of the temporomandibular joints

Barghan

Tetradis

Mallya

2012

Australian Dental Journal

176

135

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Radiographic examination is essential for the diagnosis and management of temporomandibular joint (TMJ) disorders. The goals of TMJ radiography are to evaluate cortical and trabecular architecture of the bony structures and confirm their integrity, to assess the extent and monitor progression of osseous changes, and to evaluate the response to treatment. Accurate evaluation of the TMJ by conventional radiography is limited by structure superimposition. Cone beam computed tomography (CBCT) provides high-resolution multiplanar images and delivers substantially lower radiation dose, compared with multislice CT. CBCT allows examination of TMJ anatomy without superimposition and distortion to facilitate analysis of bone morphology, joint space and dynamic function in all three dimensions. This article will describe the role of CBCT imaging for the assessment of the TMJ osseous structures and present typical appearances of common pathological conditions of the TMJ.Keywords: Cone beam, temporomandibular joints.Abbreviations and acronyms: CBCT = cone beam computed tomography; CH = coronoid hyperplasia; CT = computed tomography; FOV = field of view; MRI = magnetic resonance imaging; OA = osteoarthritis; RA = rheumatoid arthritis; SC = synovial chondromatosis; TMD = temporomandibular disorders; TMJ = temporomandibular joints.

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Section: Traumamentioning

confidence: 99%

Application of cone beam computed tomography for assessment of the temporomandibular joints

Barghan

Tetradis

Mallya

2012

Australian Dental Journal

176

135

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“…Complex anatomical structures surrounding the joint require high-quality cross-sectional and multiplanar views, particularly in the cases of condylar fractures which usually contain small bone fragments. 30,23,29 To compare the accuracy of CT and CBCT, both of which are capable of producing such detailed images, an in vivo study model was used and modified by adding different types of fractures from in vivo experimental work 21 on the healing of intracapsular condylar fracture in sheep. The results showed good correlation in intra-and extraobserver scores and were generally in good agreement with the gold standard.…”

Section: Discussionmentioning

confidence: 99%

Diagnostic accuracy of cone beam computed tomography and conventional multislice spiral tomography in sheep mandibular condyle fractures

Sirin¹,

Güven²,

Horasan³

et al. 2010

Dentomaxillofacial Radiology

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Objectives: The aim of this study was to compare diagnostic accuracy of cone beam CT (CBCT) and multislice CT in artificially created fractures of the sheep mandibular condyle. Methods: 63 full-thickness sheep heads were used in this study. Two surgeons created the fractures, which were either displaced or non-displaced. CBCT images were acquired by the NewTom 3G H CBCT scanner (NIM, Verona, Italy) and CT imaging was performed using the Toshiba Aquillon H multislice CT scanner (Toshiba Medical Systems, Otawara, Japan). Twodimensional (2D) cross-sectional images and three-dimensional (3D) reconstructions were evaluated by two observers who were asked to determine the presence or absence of fracture and displacement, the type of fracture, anatomical localization and type of displacement. The naked-eye inspection during surgery served as the gold standard. Inter-and intra-observer agreements were calculated with weighted kappa statistics. The receiver operating characteristics (ROC) curve analyses were used to compare statistically the area under the curve (AUC) of both imaging modalities. Results: Kappa coefficients of intra-and interobserver agreement scores varied between 0.56 -0.98, which were classified as moderate and excellent, respectively. There was no statistically significant difference between the imaging modalities, which were both sensitive and specific for the diagnosis of sheep condylar fractures. Conclusions: This study confirms that CBCT is similar to CT in the diagnosis of different types of experimentally created sheep condylar fractures and can provide a cost-and doseeffective diagnostic option.

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“…These cases have been diagnosed with radiographs that have been taken for other reasons. The use of plain films is usually carried out as the first option of facial evaluation (19), however the vast number of structures and their overlapping cause poor visualization of regions of interest, impairing a proper interpretation of images (20).…”

Section: Dicussionmentioning

confidence: 99%

Computed tomography imaging findings of simultaneous bifid mandibular condyle and temporomandibular joint ankylosis: case report

2007

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Bifid mandibular condyle is an uncommon entity described in the literature as having a controversial etiology. Despite the absence of clinical symptomatology, the radiologist must be aware and should have some knowledge of this abnormality, as well its implications regarding functional and morphological changes. TMJ ankylosis is a disabling disease with involvement of the mandibular condyle, articular fossa and base of the skull. The association of bifid condyle with temporomandibular joint ankylosis is rare and must be carefully evaluated. The purpose of this paper is to report a case of simultaneous bifid mandibular condyle and temporomandibular joint ankylosis and to describe its computed tomography imaging findings.

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Interpretation of mandibular condyle fractures using 2D- and 3D-computed tomography

Cited by 24 publications

References 13 publications

Application of cone beam computed tomography for assessment of the temporomandibular joints

Application of cone beam computed tomography for assessment of the temporomandibular joints

Diagnostic accuracy of cone beam computed tomography and conventional multislice spiral tomography in sheep mandibular condyle fractures

Computed tomography imaging findings of simultaneous bifid mandibular condyle and temporomandibular joint ankylosis: case report

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