Cone beam computed tomography in the diagnosis of temporomandibular joint alterations in cats

Roza, Marcello Rodrigues da; Silva, Luiz Antonio F.; Januário, Alessandro Lourenço; Fíoravantí, Maria Clorínda Soares; Barriviera, Maurício

doi:10.1016/j.jfms.2010.11.016

Cited by 12 publications

(12 citation statements)

References 13 publications

(14 reference statements)

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“…Many studies 6,8–11 involving TMJ disorders in dog and cats have been individual case reports or focused only on the clinical signs of affected patients. In the present study, we retrospectively evaluated CT images obtained from all patients that underwent CT evaluation of the skull during the study period, which allowed us to identify TMJ abnormalities even in patients that did not have clinical signs of disease.…”

Section: Discussionmentioning

confidence: 99%

“…6–11 Temporomandibular joint disorders are often debilitating and frequently require medical or surgical treatment. In humans with TMJ disorders, the most common pathological change is degenerative joint disease, also known as osteoarthritis or osteoarthrosis, which is generally caused by displacement of the articular disk or some other intra-articular derangement.…”

mentioning

confidence: 99%

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Computed tomographic findings in dogs and cats with temporomandibular joint disorders: 58 cases (2006–2011)

Arzi

Cissell²,

Verstraete

et al. 2013

javma

133

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Objective To describe CT findings in dogs and cats with temporomandibular joint (TMJ) disorders. Design Retrospective case-series. Animals 41 dogs and 17 cats. Procedures Medical records and CT images of the skull were reviewed for dogs and cats that were examined at a dentistry and oral surgery specialty practice between 2006 and 2011. Results Of 142 dogs and 42 cats evaluated, 41 dogs and 17 cats had CT findings consistent with a TMJ disorder. In dogs, the most common TMJ disorder was osteoarthritis; however, in most cases, there were other TMJ disorders present in addition to osteoarthritis. Osteoarthritis was more frequently identified at the medial aspect rather than the lateral aspect of the TMJ, whereas the frequency of osteoarthritic involvement of the dorsal and ventral compartments did not differ significantly. In cats, fractures were the most common TMJ disorder, followed by osteoarthritis. Clinical signs were observed in all dogs and cats with TMJ fractures, dysplasia, ankylosis, luxation, and tumors; however, only 4 of 15 dogs and 2 of 4 cats with osteoarthritis alone had clinical signs. Conclusions and Clinical Relevance Results indicated that TMJ disorders are frequently present in combination. Osteoarthritis was the most common TMJ disorder in dogs and the second most common TMJ disorder in cats. Computed tomography should be considered as a tool for the diagnosis of TMJ disorders in dogs and cats with suspected orofacial disorders and pain.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Computed tomographic findings in dogs and cats with temporomandibular joint disorders: 58 cases (2006–2011)

Arzi

Cissell²,

Verstraete

et al. 2013

javma

133

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“…I ntraoral dental radiography is the established gold standard for canine dental imaging. More recently added diagnostic values of conventional computed tomography (CT) and cone beam CT have been demonstrated in people and recently also dogs and cats . CT is an efficient and widely used imaging modality for the canine head.…”

Section: Introductionmentioning

confidence: 99%

Optimized Canine Dental Computed Tomographic Protocol in Medium‐sized Mesaticepahlic Dogs

Esmans

Soukup

Schwarz

2014

Vet Radiology Ultrasound

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The purpose of this study was to develop an optimized imaging protocol for canine dental imaging using single-detector row CT and multidetector row CT. Two medium-sized mesaticephalic cadaver dog heads were scanned using varying slice thickness, sequential vs. helical scanning mode, sequential CT table increment, pitch, image reconstruction algorithm, and an additional moderate edge enhancement filter. For each series, two reviewers scored dental roots as not visible (score: 0), partially visible (score: 1) or completely visible (score: 2). Sharpness of the dento-alveolar margin was scored as blurry (score: 0), sharp (score: 1) or very sharp (score: 2). Consensus reader scores were compared among CT protocols. For single-detector row CT, complete visualization of all tooth roots was only achieved with 1 mm slice thickness and image interval sequential or helical series (pitch of 1 or 2) using a high-frequency image reconstruction algorithm with or without additional edge enhancement. For four-detector row CT, complete visibility of all tooth roots was recorded in all series. For single-detector row CT, all medium frequency algorithm series yielded blurry margin scores and all other series yielded sharp margin scores. For four-detector row CT, sequential and helical 0.5 mm thickness images yielded very sharp dento-alveolar margin scores, whereas the 1 mm series yielded only sharp margin scores. Authors concluded that the optimal dental imaging protocol was a sequential mode 1 mm slice thickness and interval with a high-frequency image reconstruction algorithm and an additional moderate edge enhancement filter.

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“…This diagnostic modality uses an X-ray tube-detector system that rotates 360° around the patient's head and acquires images that are analysed by a specific computer program. 18…”

Section: Discussionmentioning

confidence: 99%

Open-mouth jaw locking in cats: a literature review and use of CT in three cases

Nutt

Anderson

Gracis³

et al. 2017

Journal of Feline Medicine and Surgery

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Open-mouth jaw locking has been reported in cats of a wide range of ages, from 1-10 years. Cats with all skull types (brachycephalic, mesaticephalic and dolichocephalic) may be affected, but brachycephalic breeds seem to be over-represented. A CT scan with the jaw locked in place is recommended for diagnosis and surgical planning purposes; two of the cases reported here document the first cases of TMJ dysplasia in cats to be definitively diagnosed using CT. Trauma and symphyseal or TMJ laxity may also predispose to development of the condition. Partial coronoidectomy and partial zygomatic arch resection performed alone or in combination are generally successful at preventing recurrence. Bilateral partial zygomectomy with bilateral partial coronoidectomy has not previously been reported as a surgical treatment, and is recommended when open-mouth jaw locking occurs bilaterally.

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Cone beam computed tomography in the diagnosis of temporomandibular joint alterations in cats

Cited by 12 publications

References 13 publications

Computed tomographic findings in dogs and cats with temporomandibular joint disorders: 58 cases (2006–2011)

Computed tomographic findings in dogs and cats with temporomandibular joint disorders: 58 cases (2006–2011)

Optimized Canine Dental Computed Tomographic Protocol in Medium‐sized Mesaticepahlic Dogs

Open-mouth jaw locking in cats: a literature review and use of CT in three cases

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