Anatomical features of a permanent mandibular canine/cuspid.

1. PERMANENT MANDIBULAR
CANINE
Dr. Ramil B. Simsuangco
Oral Anatomy Professor
College of Dentistry
Manila Central University

2. Mandibular
canine
Crown is narrower than
Maxillary canine
Variation:
Bifurcated roots

3. Labial Aspect
 Crown outline is trapezoidal
 Mesiodistal dimensions less than
maxillary
 Crowns appears longer than
maxillary, higher contact areas
 Contact Areas:
 Mesial – incisal 3rd, just below the incisal
angle or near the angle
 Distal – near junction of middle and
incisal 3rd

4. Labial Aspect
continued....
 Mesial crown outline nearly straight
 Cusp angle is in line with the center of
the root; mesial cusp ridge is shorter
 Crown slightly bent distally
 Root is shorter by 1 or 2 mm than
maxillary, apex more sharply pointed

6. Lingual
Aspect
 Crown outline is trapezoidal
 Flatter lingual surface, cingulum is
smooth and poorly developed, marginal
ridges are less distinct.
 Lingual ridge raised at the incisal 3rd
only
 Root appears narrower than labial
aspect

8. Mesial Aspect
 Crown outline is triangular
 Less pronounced cingulum
 Incisal portion is thinner labiolingually,
thus cusp appears more pointed, cusp
ridges more slender
 Tip of cusp more nearly centered over
root
 Developmental depressions are more
pronounced and sometime quite deep

10. Distal
aspect
 Same as mesial aspect, except:
 Less curvature of CEJ
 Less pronounced cingulum
 Less depressions on the root surface

11. Incisal
Aspect
 Mesiodistal diameter less than
labiolingual
 Cusp tip and mesial cusp ridge more
likely to be inclined in a lingual direction