Molar eruption and identification of the eastern grey kangaroo(Macropus giganteus) at different ages

The Journal of Veterinary Medical Science

Yuko WADA¹  Nobuhide KIDO¹  Tomoko OMIYA¹  Sumito SATO¹  Sohei TANAKA¹ 

[1] Kanazawa Zoological Gardens, Yokohama GreeneryFoundation, 5-15-1, Kamariya-higashi, Kanazawa-ku, Yokohama, Kanagawa 236-0042,Japan

关键词: Macropus giganteus;    mandibular;    maxillary;    radiographic image;    replacement;   

DOI  :  10.1292/jvms.17-0069

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

To treat dental disorders and estimate age, it is important that veterinarians understandteeth eruption sequence for the animal in question. Few dental images of the eastern greykangaroo have been published. In the present study, radiographic imagings of 29 kangaroos,ranging in age from 12 months to 10 years 9 months, was used to surveil the replacement ofpremolars and the eruption of molars. These images revealed eruption patterns in fivestages, while the second and third deciduous premolars were shed non-systematically.Furthermore, the third premolars and fourth molars erupted in the mandible earlier than inthe maxilla, which may contribute to the frequency of mandibular dental disorders.

【 授权许可】

Unknown