The canines (Latin: dentes canini) are also known as the eye teeth or cuspids. 

In the oral cavity, there are four canine teeth. 

Every jaw (upper and lower) has two canines, and every canine is located in each quadrant between the lateral incisors and first premolars. In other words, the maxillae have two canine teeth, and two more are located in the mandible. 

Between both canine teeth in every row - in the middle - are located all incisors.

The maxillary canines have the following numbers according to each dental notation system:

• 6 and 11 (Universal Tooth Numbering System)

• 13 and 23 (ISO system)

• 3 ┘ and 3└ (Palmer system)

The numbers of the mandibular canines are as follows:

• 22 and 27 (Universal Tooth Numbering System)

• 33 and 43 (ISO system)

• 3┌ and 3 ┐ (Palmer system)

NOTE: in the 3D model, the Universal Tooth Numbering System is being used.

This type of teeth has a single very long and deep root, flattened and grooved on the sides. It is longer than other teeth roots.

The crown has a sharpened conical shape with spear-like cutting edges. 

The canines are used for food gripping, cutting, and tearing.

Also, these teeth are known as the cornerstones of each arch, and they are very strong, so they help retain prosthesis.

NOTE: the mandibular canines are a half-tooth closer to the midline of the jaw compared to the maxillary canines.