Tags: Anatomical Structure.
The mandibular canine is the tooth located distally (away from the midline of the face) from both mandibular lateral incisors of the mouth but mesially (toward the midline of the face) from both mandibular first premolars. Both the maxillary and mandibular canines are called the cornerstone of the mouth because they are all located three teeth away from the midline and separate the premolars from the incisors.