[Variations of dentition in raccoon dogs (Nyctereutes Procynoides Viverrinus T.) Anomalies in number of the teeth]
| Autor: | Sigeru Kobayashi, Tetuharu Kiyosue, Kazuhisa Ogawa, Hirohide Kubo, Yoshiyuki Harada, Shinichiro Mori |
|---|---|
| Rok vydání: | 1989 |
| Předmět: |
Molar
Male Carnivora Dentistry Biology stomatognathic system Incisor otorhinolaryngologic diseases medicine Premolar Animals Dentition Supernumerary General Dentistry Anodontia business.industry Raccoon Dogs biology.organism_classification Rats stomatognathic diseases Skull Nyctereutes medicine.anatomical_structure Tooth Supernumerary Female business |
| Zdroj: | Shika Kiso Igakkai zasshi = Japanese journal of oral biology. 31(3) |
| ISSN: | 0385-0137 |
| Popis: | A study on the number of anomalous teeth was made by using gross and radiographic examinations on 179 skulls (male: 68, female: 53, unknown: 58) of raccoon dogs (Nyctereutes Procynoides Viverrinus T.) captured in the northern part of Kyushu. Results were as follows: 1. 8 skulls had 15 supernumerary teeth. They were in the upper incisor, the upper third premolar and the upper and lower first premolar regions. 2. 35 skulls had 58 congenitally missing teeth. Most of them were upper and lower first premolars or lower third molars. 3. One skull had one supernumerary tooth in the upper second incisor region and one congenitally missing tooth, a lower third molar. 4. The anomalous teeth were about 25%, the supernumerary teeth and congenitally missing teeth were about 4.5% and 20% respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|