Cusp (anatomy)

From Wikipedia, the free encyclopedia
  (Redirected from Cusp (dentistry))
Jump to: navigation, search
Cusp tips.JPG
The teeth of the right side of the mouth, shown contacting the teeth in the opposing jaw with their cusp tips.
Latin cuspis dentis
TA A05.1.03.010
FMA 56481
Anatomical terminology
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

A cusp is a pointed, projecting, or elevated feature. In animals, it is usually used to refer to raised points on the crowns of teeth.

In humans[edit]

A cusp is an occlusal or incisal eminence on a tooth. Canine teeth, otherwise known as cuspids, each possess a single cusp, while premolars, otherwise known as bicuspids, possess two each. Molars normally possess either four or five cusps. In certain populations the maxillary molars, especially first molars, will possess a fifth cusp situated on the mesiolingual cusp known as the Cusp of Carabelli.


  • Ash, Major M.; Nelson, Stanley. Wheeler'S Dental Anatomy, Physiology and Occlusion, 8th edition.