Cusp (anatomy)

It is a bulge on the buccal cusp that is only found in Native American Indians, with highest frequencies of occurrence in Arizona.

The name is not a dental term; it comes from a regional linguistic division of Native American Indian language groups.

The hypocone appears to have evolved independently more than twenty times in different mammal groups during the Cenozoic period.

The crests between the cusps are adaptations for slicing food during occlusion or mastication (chewing).

The crests between the cusps are adaptations for slicing food during occlusion or mastication (chewing).

1. Tooth
2. Enamel
3. Dentin
4. Dental pulp
5. cameral pulp
6. root pulp
7. Cementum
8. Crown
9. Cusp
10. Sulcus
11. Neck
12. Root
13. Furcation
14. Root apex
15. Apical foramen
16. Gingival sulcus
17. Periodontium
18. Gingiva
19. free or interdental
20. marginal
21. alveolar
22. Periodontal ligament
23. Alveolar bone
24. Vessels and nerves
25. dental
26. periodontal
27. alveolar through channel
Right upper molar showing the four main upper molars cusps