The Journal of Nihon University School of Dentistry.
Discontinued
Publisher:
Nihon University School Of Dentistry. Tokyo : Nihon University School Of Dentistry
Frequency: Quarterly
Country: Japan
Language: English
Author(s):
Nihon Daigaku. Shigakubu.
Start Year:1958 - 1997
Identifiers
| ISSN: | 0029-0432 (Print) 0029-0432 (Linking) |
| NLM ID: | 7509209 |
| (OCoLC): | 01760382 |
| (DNLM): | J31780000(s) |
| Coden: | JNUDAT |
| Classification: | W1 JO943H |
Evolution of tooth structure in the Equoidea. During the evolution of the Equoidea, the histological structures of the teeth have become more complex as the molars have become hypsodont in form. The straight Hunter-Schreger bands of Hiracotherium have evolved into a more complex pattern in Equus. The enamel prisms changed from an arched form (about 5μm in diameter) with an alternating pattern in Hiracotherium to an oval form (about 2 μm width) arranged in straight rows in Equus. In Equus the rows of prisms are separated by interprismatic sheets. This pattern may have increased the architectural strength of the enamel, and is related to ...