Morphologic Features of the Root Canal System of the Maxillary Fourth Premolar and the Mandibular First Molar in Dogs

Hernández, Sabás Z.; Negro, Viviana B.; Maresca, B M

doi:10.1177/089875640101800101

Cited by 17 publications

(36 citation statements)

References 10 publications

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“…In fully formed dog teeth there is normally an apical delta rather than an apical foramen providing a connection between the pulp and periodontal tissues. 36,38,48 In this study, apical deltas were demonstrated histologically in 86.4 % of the teeth examined. The neurovascular supply to the pulp of dog teeth passes through a variable number (from just a few to over 20) very narrow neurovascular canals, most of which are significantly less than 100-µm in width, and may extend to 3-mm or more from the apex.…”

Section: Histomicrographs From Different Teeth Showing Cystic Changesmentioning

confidence: 94%

Histological Evaluation of the Pulp in Teeth from Dogs with Naturally Occurring Periodontal Disease

et al. 2007

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The purpose of this investigation was to evaluate the pulp of dog teeth affected by advanced periodontal disease. Histological examination was done on demineralized teeth extracted during clinical treatment of mature, client owned small and medium-size breed dogs with either good periodontal health or with advanced naturally occurring periodontal disease. Routinely stained sections from 5 clinically normal teeth and 22 teeth with advanced periodontitis from dogs between 5 and 12-years of age were examined using light microscopy. The pulp cavities of most teeth were narrow with low cellularity and some fibrosis of the pulp. Findings specific to periodontally affected teeth included acute and chronic pulpitis, vascular congestion, and pulp necrosis. A glomus body was identified in the pulp of one tooth and areas of poorly mineralized cementum were seen in both normal and diseased teeth. Age related changes in dog teeth appear similar to those reported for man and the rat. In addition to age related changes, the pulp of dog teeth with advanced periodontal disease were frequently inflamed or necrotic. This may reflect the advanced periodontitis affecting these teeth or a mechanical effect related to excessive tooth mobility. Further study is required to determine the etiology and significance of these findings and to investigate pulp status in less severely diseased teeth.

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Section: Histomicrographs From Different Teeth Showing Cystic Changesmentioning

confidence: 94%

Histological Evaluation of the Pulp in Teeth from Dogs with Naturally Occurring Periodontal Disease

et al. 2007

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“…However, these findings should be studied in a larger population to provide additional statistical verification of this observation. 4,28,29 In human teeth, bacteria may reach the periapical area from lateral canals and the wide apical foramen, whereas canine and feline teeth have an apical delta and fewer accessory canals (Fig.2). 24,26,27 Differences in anatomical characteristics between human, dog, and cat apices have been thoroughly studied.…”

Section: Apical Limits and Major Biologic Factors Influencing Outcomesmentioning

confidence: 99%

Root Canal Treatment in Dogs and Cats

Girard¹,

Southerden²,

Hennet³

2006

J Vet Dent

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“…Together with the periodontal ligament, alveolar bone and gingivae, it contributes to the tooth support apparatus. [2][3][4][5][6][7] In dogs, carnassial and canine teeth are the most important teeth in regard to size and function. 1 Cementum thickness varies, being thicker at the apex and furcation regions and thinner at the cementoenamel junction.…”

Section: Introductionmentioning

confidence: 99%

“…The internal aspect of the cementum is juxtaposed with dentin, and with the dental pulp apically, whereas the external aspect interfaces with the periodontal ligament. 4,8,9 A more precise and complete knowledge of the topographic and microscopic anatomy of the root apex in dogs is needed. Cementum is formed at varying rates throughout life.…”

Section: Introductionmentioning

confidence: 99%

Scanning Electron Microscopic Evaluation of Tooth Root Apices in the Dog

et al. 2014

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External and internal ultramicroscopic characteristics of the tooth root apex in dogs were determined. Thirty teeth (16 maxillary fourth premolars, 7 mandibular first molars, and 7 maxillary canines) were examined. Teeth were obtained from 9 dogs with a total of 59 roots evaluated. Roots were sectioned perpendicular to the long axis (41), 3 to 7-mm from the apex, and others were sectioned longitudinally (18). Specimens were observed using scanning electron microscopy. The major diameter of 1,700 foramina and the depth of apical deltas were measured. The shape of the apex varied from round to elliptical and round-elliptical, with a regular or irregular surface. All root apices had many foramina, most (85.44 %) with a diameter < 50-μm. The maximum foramen diameter was 234.19-μm. Great variation was observed in the size of the apical foramina. The internal aspect of the cementum at the apical level showed a “sieved plug”. The extension of the cementum within the root canal forming the apical delta measured 2 ± 0.4-mm.

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Morphologic Features of the Root Canal System of the Maxillary Fourth Premolar and the Mandibular First Molar in Dogs

Cited by 17 publications

References 10 publications

Histological Evaluation of the Pulp in Teeth from Dogs with Naturally Occurring Periodontal Disease

Histological Evaluation of the Pulp in Teeth from Dogs with Naturally Occurring Periodontal Disease

Root Canal Treatment in Dogs and Cats

Scanning Electron Microscopic Evaluation of Tooth Root Apices in the Dog

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