First evidence of calcification : 4-5 months Enamel completed : 6-7 yr Eruption : 9-10yrs Root completed : 12-14yrs

1. MANDIBULAR CANINE
DR AMITHA G, BDS, MDS
DEPT OF ORAL AND MAXILLOFACIAL PATHOLOGY

2. CHRONOLOGY
• First evidence of calcification : 4-5 months
• Enamel completed : 6-7 yr
• Eruption : 9-10yrs
• Root completed : 12-14yrs

3. AVERAGE DIMENSIONS IN MILLIMETERS
2.5 1.07.07.55.57.016.011.0
Curvature
of Cervical
Line
M D
Labiolingual
Diameter at
Cervical Line
Labiolingual
Diameter at
Crest of
Curvature
Mesiodistal
Diameter at
Cervical Line
Mesiodistal
Diameter at
Contact Area
Root
Length
Crown
Length

4. LABIAL ASPECT
 Mandibular canine crown is narrower mesiodistally than that of
the maxillary canine ( the difference is usually about 1mm )
 Mesial outline of the crown is straight and inline with the mesial
outline of the root.

5. • The mesial cusp ridge is smaller than the distal cusp ridge
• Cervical line labially has a semi circular curvature apically
• Root - apical end is more sharply pointed

6. LINGUAL ASPECT
• Lingual surface of the crown is flatter
• Cingulum – smooth and poorly developed
• Lingual ridge – divides mesial and distal lingual fossa
• Root – narrower - max. canine

7. MESIAL ASPECTS
• Mandibular canine has less curvature labially on the crown.
• Lingual outline of the crown is curved
• Cingulum is not so pronounced
• Incisal portion of the crown is thinner labiolingually
• The tip of the cusp is more nearly centred over the root

8. • Cervical line curves more toward the incisal portion - more
on the mesial aspect
• The contact area on mesial aspect is in the incisal third
• Developmental depression on the root mesially is more
pronounced

9. DISTAL ASPECT
• Contact area on the distal aspect is little higher on the distal
third
• Curvature of the cervical line is shorter compared to the mesial
aspect

10. INCISAL ASPECT
• Like maxillary canine the labiolingual dimension is more than
the mesiodistal dimension
• The cusp tip appears inclined in a lingual direction
ROOT
• The root is shorter by 1 or 2 mm than max. canine
• The developmental depression is more pronounced on the
lower canine

11. THANK YOU