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20 Cards in this Set
- Front
- Back
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What was the goal of this study?
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To determine the prevalence of tooth resorption and to report other dental problems in a population of wild felidae
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What was the study group?
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73 wild felidae (cheetahs, leopards, caracals, African wildcats, and lions) originating from Namibia
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Radiographs showed varying stages of tooth resorption in 16% of the specimens
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Other dental anomalies found included fused teeth, supernumerary roots, or missing teeth
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The prevalence of dental resorption in wild felidae was lower than reported in the domestic cat
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True
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Tooth resorption is considered painful, leading to discomfort, anorexia, decreased wt, and loss of teeth
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True (and the cause remains unknown)
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TR is not a new disease and has been seen on skulls from the 13th century in domestic cats and studies performed at the end of last century reported TR prevalence b/w 28-70%
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True
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Other populations including human & dogs have been reported to be affected by occasional TR
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True
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In this study, how was the age determined on the skulls used?
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The age category of the skulls was estimated based on the pulp canal-to-root diameter ratio for all skulls for which radiographs were performed (43 of the 73 skulls)
Age categories were (immature, young and adult) |
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Lesions indicative of TR were found in 7 (16%) of the 43 skulls
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True
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What is primary dentin?
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It is the dentin formed from the beginning of calcification until tooth eruption
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What is secondary dentin?
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The normal physiological dentin formed throughout the pulp cavity following eruption. A gradual deposition of secondary dentin is observed on the inner side of the pulp cavity. The pulp canal becomes progressively narrower and the dentin becomes thicker with age
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Supernumerary teeth are frequently observed in certain dog breeds, like the Greyhound dog. Are supernumerary teeth common in cats?
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No
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What is tooth fusion?
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The result of 2 separate tooth buds joined at the crown by enamel and possibly dentin
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If the union of 2 teeth is localized on the root surface due to fusion of their cementum, it is known as a concrescence
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A narrow space b/w the MN canine teeth was hypothesized to result in malalignment of the MN incisor teeth and, in more advanced cases, fusion of the tooth buds
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In this case, complicated crown fractures or missing teeth were observed in 21.9% and 19.1% of the skulls, respectively
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True
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What can cause discoloration of the crowns of teeth?
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Enamel hypoplasia, chemical staining, internal resorption, pulpitis, and stains from food or accumulated calculus
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In the majority of cases of discoloration in this study, several teeth were affected in the same skull by a pink to purple discoloration.....
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Pink discoloration occurs after the diffusion of hemoglobin and its derivatives into the dentin tubules
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This discoloration phenomenon is well know in forensic science and research has shown that certain factors increase the occurrence of tooth discoloration following death including increased humidity, young age, victims of sudden death, and teeth exposed to heat or cold
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In this study, postmortem discoloration seems likely
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What is Focal palatine erosion (FPE) and in what species is it seen most commonly in?
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FPE appears to be a developmental problem, causing a depression in the palatine bone due to pressure caused by the principal cusp of the MN 1st molar tooth. In some individuals it is severe enough to cause erosion or even perforation of the palatal bone.
Seen in Cheetahs (found in 69.2% of cheetah population) |
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Does the incidence of TR appear higher or lower in wild cats compared to our domestic cats?
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TR appears to be at a higher incidence in our domestic cats
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