The use of micro-computed tomography in the diagnosis of dental and oral disease in rabbits

Sasai, Hisanori; Iwai, Hiroyuki; Fujita, Daisuke; Seto, Eiko; Izumi, Yuki

doi:10.1186/s12917-014-0209-4

Cited by 13 publications

(7 citation statements)

References 14 publications

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“…Recently, 3D images of the microarchitecture of bone specimens from different species and body parts have been obtained by using micro-CT. This produces high resolution images by micro-CT and digitally reconstructs the tooth and surrounding alveolar bone, allowing for the quantitative assessment of root surface defects or bony attachments 34 , 35 . Nevins et al showed that micro-CT can be used for the 3D quantitative assessment of alveolar bone 36 .…”

Section: Discussionmentioning

confidence: 99%

Low-intensity pulsed ultrasound attenuates replacement root resorption of avulsed teeth stored in dry condition in dogs

Seong

Kim

Lee

et al. 2021

Sci Rep

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This study aimed to investigate the effects of low-intensity pulsed ultrasound (LIPUS) on replacement root resorption after replantation of avulsed teeth stored in a dry condition in dogs. A total of 73 premolar roots from four male mongrel dogs were intentionally avulsed with forceps and divided into four groups—HN, HL, DN, and DL—according to storage conditions and whether or not they received LIPUS treatment. Thirty-eight roots were kept in Hanks’ Balanced Salt Solution for 30 min (HN and HL groups), whereas the remaining 35 roots were left to dry in the air for an hour (DN and DL groups) prior to replantation. Following replantation, the roots in the HL and DL groups (21 and 18 roots, respectively) received a 20-min daily LIPUS treatment for 2 weeks. The animals were euthanized 4 weeks after the operation. Micro-computed tomography images were acquired for each root and the amount of replacement root resorption was measured three-dimensionally. Histological assessments were also carried out. There was significantly less replacement root resorption for the roots in the DL group compared to the DN group (p < 0.01). Histological findings in the DN group demonstrated evident replacement root resorption, whereas the DL group revealed less severe resorption compared to the DN group. Within the limitations, these results suggest that LIPUS could attenuate the replacement resorption of avulsed teeth stored in a dry condition, thereby improving their prognosis.

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Section: Discussionmentioning

confidence: 99%

Low-intensity pulsed ultrasound attenuates replacement root resorption of avulsed teeth stored in dry condition in dogs

Seong

Kim

Lee

et al. 2021

Sci Rep

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“…The cornerstone for successful results of RCT is the sound understanding of the variation in pulp canal morphology and its possible differences before starting endodontic treatment. 29,30 Effective dental pulp canal cleaning and a final 3D obturation of the pulp canal that allows good sealing of the accessible spaces are important foreffective RCT. 31 Therefore, it is important for the dentist to have a clear mental image of what they are going to inspect when starting RCT.…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Extra Root Canal Orifices of Maxillary First Permanent Molars in a Saudi Subpopulation Utilizing Microcomputed Tomography

Ashiry

Farsi

2018

The Journal of Contemporary Dental Practice

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Aim:To study the prevalence of additional root canal orifices of upper first permanent molars in Saudi subpopulation in Jeddah, Kingdom of Saudi Arabia, utilizing micro-computed tomography X-ray (micro-CT). Materials and methods:One hundred extracted upper first permanent molars of Saudi patients were included in the study. Micro-CT was used to detect the prevalence of extra root canal orifices of the permanent upper first molars. Results:The evaluation of three-dimensional (3D) images of this study showed that of 100 upper permanent first molars scanned and analyzed, 10.53% had 6 pulp canal orifices, 35.09% had 5 pulp canal orifices, 47.37% had 4 pulp canal orifices and 7.01% had 3 pulp canal orifices. Conclusion:The current data showed the highest prevalence of 4 and 5 root canal orifices compared to 3 and 6 root canal orifices. Clinical significance:The knowledge of anatomic variations of teeth before starting root canal treatment can help dentists to detect and manage all root canals successfully.

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“…Whereas CT is widely used in clinical studies and routine diagnostics and treatment, in veterinary science, microCT has mostly been used in anatomical research studies and for use in cadaver materials 15,16 . Its application in published clinical practice in living animals has been restricted due to high radiation doses but the detection of bone fractures and oral diseases in rabbits and the study of diseases mechanisms in laboratory animals have been undertaken [17][18][19] .…”

Section: Discovery Of Os Cordis In the Cardiac Skeleton Of Chimpanzee...mentioning

confidence: 99%

Discovery of os cordis in the cardiac skeleton of chimpanzees (Pan troglodytes)

Moittié

Baiker

Strong

et al. 2020

Sci Rep

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Cardiovascular diseases, especially idiopathic myocardial fibrosis, is one of the most significant causes of morbidity and mortality in captive great apes. This study compared the structure and morphology of 16 hearts from chimpanzees (Pan troglodytes) which were either healthy or affected by myocardial fibrosis using X-ray microtomography. In four hearts, a single, hyperdense structure was detected within the right fibrous trigone of the cardiac skeleton. High resolution scans and histopathology revealed trabecular bones in two cases, hyaline cartilage in another case and a focus of mineralised fibro-cartilaginous metaplasia with endochondral ossification in the last case. Four other animals presented with multiple foci of ectopic calcification within the walls of the great vessels. All hearts affected by marked myocardial fibrosis presented with bone or cartilage formation, and increased collagen levels in tissues adjacent to the bone/cartilage, while unaffected hearts did not present with os cordis or cartilago cordis. The presence of an os cordis has been described in some ruminants, camelids, and otters, but never in great apes. This novel research indicates that an os cordis and cartilago cordis is present in some chimpanzees, particularly those affected by myocardial fibrosis, and could influence the risk of cardiac arrhythmias and sudden death.

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The use of micro-computed tomography in the diagnosis of dental and oral disease in rabbits

Cited by 13 publications

References 14 publications

Low-intensity pulsed ultrasound attenuates replacement root resorption of avulsed teeth stored in dry condition in dogs

Low-intensity pulsed ultrasound attenuates replacement root resorption of avulsed teeth stored in dry condition in dogs

Prevalence of Extra Root Canal Orifices of Maxillary First Permanent Molars in a Saudi Subpopulation Utilizing Microcomputed Tomography

Discovery of os cordis in the cardiac skeleton of chimpanzees (Pan troglodytes)

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