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Heterotopic polyodontia in a cynomolgus monkey
K Yoshizawa1, Y Oishi, T Fujii
1Department of Pathology, Fujisawa Pharmaceutical Co., Ltd, Japan.
Laboratory Animals
|March 3, 1998
Summary
A rare case of heterotopic polyodontia, an extra tooth, was found in a laboratory cynomolgus monkey. This is the first documented instance of this condition in a monkey, offering new insights into dental anomalies.
Area of Science:
- Veterinary Medicine
- Primate Research
- Developmental Biology
Background:
- Heterotopic polyodontia, the presence of supernumerary teeth in an abnormal location, is a rare condition.
- While documented in various species, its occurrence in non-human primates is exceptionally uncommon.
- Understanding such anomalies is crucial for comparative pathology and veterinary care.
Observation:
- A 6-year-old male cynomolgus monkey presented with a heterotopic tooth erupted in the right maxillofacial area near the nose.
- The erupted tooth exhibited a crustated surface and was macroscopically unconnected to the parotid gland.
- Radiographic and histopathological examination revealed normal dental structures and partial continuity with the maxillary bone.
Findings:
- The study describes the first reported case of heterotopic polyodontia in a cynomolgus monkey.
- Histopathology confirmed the presence of a well-formed tooth structure with associated bone.
- The tooth's eruption site and lack of connection to adjacent structures provide unique anatomical data.
Implications:
- This case expands the known spectrum of dental anomalies in non-human primates.
- It provides valuable data for comparative odontology and understanding tooth development.
- Further research may elucidate the genetic or environmental factors contributing to such ectopic dental formations in primates.