- Permanent canines are four in number, with two located in the maxilla and two in the mandible. They are referred to as the "cornerstone" of the dental arches. - The maxillary canines each have a single pointed cusp with a longer distal slope and a bulky palatal cingulum. They have a very long single root. - The mandibular canines are narrower than the maxillary canines with less prominent cusp anatomy and marginal ridges. The mesial slope of the mandibular canine cusp is also shorter than the distal slope.