2. A tooth having a crown of thick conical shape
and a long, slightly flattened conical root
3. There are two canine teeth in each jaw, one on either side
adjacent to the distal surface of the lateral incisors, in both
the deciduous and the permanent dentition
4. Human canines are the longest and most
stable of teeth in the dental arch
Only one tooth of this class is present in each
quadrant
Called cuspids, dogteeth, fangs, or eye
teeth
Considered as the cornerstones of the dental
arch
Only teeth in the dentition with a single cusp
8. Labial aspect:
• MD diameter narrower than Max.
Central incisor
• Made up of 3 lobes
• Middle lobe is prominent → Labial ridge
• Distal incisal margin slopes more &
longer
• Mesio-incisal angle more coronally
situated
• Mesial slope is shorter than distal
slope
labial ridge
M D
MI Angle DI Angle
10. Palatal aspect:
C
MMR
DMR
LR
MLF DLF
• Well developed cingulum
• More curved cervical line
• Lingual ridge: well developed &
extends from cingulum to cusp tip
• Mesial & distal lingual fossae:
concave between lingual ridge
• Mesial & distal marginal ridges:
prominent ridges
11. Mesial aspect:
• Roughly triangular
• Broad cervically & tapers incisally
•Lingual profile shows pronounced
convexity of cingulum & a shallow
concavity in the middle third,
followed by a convexity incisally
•Contact point in incisal third of
crown
12. Distal aspect:
• General outline similar to mesial surface
• More convex & shorter than mesial
surface
• Contact point in middle third
• Cervical line exhibits less curvature
• DMR is more irregular
13. Incisal aspect:
• LL dimension>MD
•Distal cusp ridge is slightly longer
than the mesial cusp ridge
•Cusp is at right angle to the long axis
of the tooth
•The cusp is formed by labial &
lingual ridges & mesial & distal cusp
ridges
C
LR
18. Labial aspect:
• MD diameter narrower than
Max. Canine
• Broader than lower incisors
• Cusp is short & blunt
• MI angle is higher than the DI angle
• Mesial contact area is high just below the
incisal angle
• Distal contact area is lower than mesial
& situated in middle third
MI angle DI angle
20. Mesial aspect:
• Has less curvature labially
• Lingual out line curved , but less in
degree
•Cingulum less prominent
•Cervical line more curved towards
incisal portion
21. Distal aspect:
• General outline similar to mesial
surface
• Lingual out line curved , but less in
degree
•Cingulum less prominent
•Cervical line more curved towards
incisal portion
22. Incisal aspect:
• LL dimension>MD
• Out lines of mesial surface are less
curved
• The cusp tip is inclined in a lingual
direction
23. Root :
• Shorter & more flattened MD than Max canine
• Triangular in cross section
• Labial surface is broader than lingual
• Apical portion inclined slightly mesially
24. Summary:
Feature common to all canines:
• They have a single root, which is longest &
strongest of all teeth
• They have a single conical cusp
• They have a functional lingual surface