JVD 2009 1 Oral Examination and Radiographic Evaluation of the Dentition in Wild Cats from Namibia P. Roux, M. Berger, H. Stich, P. Schawalder Flashcards
What was the goal of the study?
To determine the prevalence of tooth resorption and to report other dental problems in a population of wild felidae.
Skulls from which felidae were included in the study?
73 wild felidae skulls were examined. These included cheetahs, leopards, caracals, African wildcats, and lions.
43 of the skulls were radiographed.
What percentage of specimens showed evidence of tooth resorption?
16%
What other dental anomalies were found?
Fused teeth, supernumerary roots and missing teeth.
What process characterises tooth resorption?
degeneration of the periodontal ligament associated with external root resorption by odontoclasts.
What has been the reported incidence of tooth resorption in domestic cats?
28- 70%
What feature was used to define a missing tooth as a post mortem change versus antemortem change?
Bone remodelling of the empty alveolus was used to define the missing tooth as an antemortem change.
Alveolar bone resorption was found in what percentage of skulls?
5.5%
What features characterised alveolar bone resorption?
Irregular bone structure with perforating small holes and a lower alveolar crest, resulting in exposure of the root.
A bilateral deep depression in the palatal bone at the level of the fourth premolar tooth without complete perforation of the bone structure was found in how many skulls and what was it classed as?
3 skulls 4.1 % had these charactistics termed focal palatine erosion
What percentage of cases had missing teeth?
19.1%
What percentage of cases had complicated fractures?
21.9%
What percentage of cases showed ankylosis and periodontal disease?
11.6%
What percentage of cases had root remnants present?
18.6%
The absence of one or both maxillary premolars was found in what felidae?
11 cheetahs and 1 leopard
What is shown at the point of the arrow in this photograph?
A supernumerary root.
What is seen at the point of the arrow in this photograph?
What is postulated to cause this and how did the study suggest this might change?
A focal palatine erosion.
This disorder has been attributed to commerical food, hereditary factors, renal disease, supperative rhinitis and dental malocclusion. The current study findings being from wild cats suggest commercial food is not related to formation of FPE.
What is shown at the site of each arrow in this photograph? What is this known as?
Fused right and left mandibular 2nd and third incisors.
This is called concrescence.
What percentage of maxillary third premolar teeth have been previously found to have three roots?
10.3%
The abscence of which tooth is considered normal in the caracal and the lynx?
The maxillary second premolar.
