Anatomy of permanent canines for dental students

2. MaxillaryMaxillary
permanentpermanent
caninecanine

3. -There are two maxillary and two mandibular canines.
-They are called corner stone of the mouth.
-It has long root for good anchorage in the bone.
-The middle labial lobe is well developed forming cusp
and labial ridge.
-The bone ridge over the labial surface of the root is called
canine eminence (insure facial expression(.

4. Chronology
Appearance of the dental organ 6 m.i.u
First evidence of calcification 4-5 months.
Enamel completed 6-7 years
Eruption 11-12 years
Root completed 14-15 years
Type and function
This tooth has the function of incising, holding
and tearing food as well as esthetic.
No. of lobes
It has four lobes (three labial-the middle is well
developed- and cingulum(

5. 33 2 24 4
Relation
The upper canine make contact mesially with the
distal surface of the lateral incisors and distally
with the mesial surface of the 1st
premolar.

6. No. of surfaces
It has four surfaces and incisal aspect.
Labial Lingual Mesial Distal
Incisal
No. of roots
It has one root.

7. Surface AnatomySurface Anatomy
-The mesial half of the crown resembles the upper lateral
incisor where the distal half resembles a premolar.
Labial aspect
☻Geometrical outline of the crown: Trapezoid.
-The short side cervically.
-The long side incisally.
☻The outline:
-Mesial outline starting from cervical line
convex till the junction of and incisal thirds
( contact area(. Then become concave till
cusp tip.
-The cervical line is convex root-wards.
-The distal outline is concave till the middle
third (the contact area( then convex to the
cusp tip.

8. -The distal slope is longer than
the mesial slope.
☻Surface anatomy:
-The surface is convex both
mesiodistally and inciso-cervically.
Elevations
-Cervical ridge.
-Labial ridge.
Depressions
-Two developmental grooves.
☻The root:
-It is long, slender, conical in
shape with distal curvature of
the apical 3rd
.
-Cusp.

9. Lingual aspect
-It has the same geometrical outline
and outline as the labial surface.
- The mesial and distal sides of the
crown and root converge lingually.
☻Surface anatomy:
The elevations:
-The cingulum.
-The marginal ridges (mesial and distal(.
-The lingual ridge.
-Mesio and disto-incisal ridges.
The depressions
-Two lingual fossae.

10. Cingulum.
Mesial marginal
ridge.
Distal marginal
ridge
M.L.FD.L.F
M.I.Ridge
D.I.Ridge
Lingual ridge
Enumerate the names
of the following
elevations and
depressions?

11. Mesial aspect
☻Geometrical outline of the crown:
☻Triangular in shape; the base
cervically and the apex incisally.
☻The cusp tip may be on a line
that bisects the centre of the root
or slightly labial to it.
☻The outline:
☻The labial outline is convex
with the greatest convexity at
cervical 1/3 ( cervical ridge(.
☻The lingual outline is convex at
cervical 1/3 (cingulum(.
- Then straight at the middle 3rd
and
convex at incisal 3rd
.

12. ☻The mesial cervical line is
convex incisally.
☻Surface anatomy:
☻The mesial surface is convex with
the maximum convexity at the
junction of the incisal and middle 1/3s
( the contact area(.
☻The root:
-The root is broad and taper to blunt
apex.
-It has a distal developmental
depression.

13. The distal aspect
☻Similar to the mesial aspect but
differ in.
- The cervical line curvature is less
than mesial ( by 1 mm(.
-The contact area is broader and
located at the middle 1/3 (more
cervially(.
-The developmental depression of
the root is more developed.

14. Incisal aspect
-The labio-lingual diameter is
greater than the mesio-distal
diameter.
-The cusp tip is slightly labial
and mesial to the center of the
crown.
Labial
Lingual
M D
-The distal slope is longer than
the mesial slope.
-All elevations and depressions can be
seen from this aspect.

15. Enumerate the names of the following
elevations and depressions?
Cervical ridgr.
Labial ridge.
D. slope.
D.M.R
Cusp tip.
M. slope.
Lingual ridge.
M.M.R
Lingual fossae. Cingulum.

16. ☻Pulp cavity
►Mesio-distal section
►Labio-lingual section
-Has narrow pulp chamber.
-The root canal is long and tapering
down to the apical foramen.
-The pulp chamber is pointed
incisally.
-The root canal start cervically wide till
about the middle then narrows to the
apical foramen.

17. MandibularMandibular
permanentpermanent
caninecanine

18. Chronology
Appearance of the dental organ 6 m.i.u
First evidence of calcification 4-5 months.
Enamel completed 6-7 years
Eruption 9-10 years
Root completed 12-13 years
Type and function
This tooth has the function of incising, holding
and tearing food as well as esthetic.
No. of lobes
It has four lobes (three labial-the middle is well
developed- and cingulum(

19. 33
2 2
4 4
Relation
The lower canine make contact mesially with the
distal surface of the lateral incisors and distally
with the mesial surface of the 1st
premolar.

20. No. of surfaces
It has four surfaces and incisal aspect.
Labial Lingual Mesial Distal
Incisal
No. of roots
It has one root.

21. Surface AnatomySurface Anatomy
-The mesial half of the crown resembles the upper lateral
incisor where the distal half resembles a premolar.
Labial aspect
☻Geometrical outline of the crown: Trapezoid.
-The short side cervically.
-The long side incisally.
☻The outline:
-Mesial outline Is straight with the mesial
outline of the root. The mesial contact area
is at the incisal 3rd
.
-The cervical line is convex root-wards.
-The distal outline is convex till the contact
area at the junction of incisal and middle 3rds.

22. -The distal slope is longer than
the mesial slope.
☻Surface anatomy:
-The surface is convex both
mesiodistally and inciso-cervically.
Elevations
-Cervical ridge.
-Labial ridge.
Depressions
-Two developmental grooves.
☻The root:
-It is long, slender, conical in
shape with distal curvature of
the apical 3rd
.
-Cusp.

23. Lingual aspect
-It has the same geometrical outline
and outline as the labial surface.
- The mesial and distal sides of the
crown and root converge lingually.
☻Surface anatomy:
The elevations:
(poorly developed(
-The cingulum.
-The marginal ridges (mesial and distal(.
-The lingual ridge.
-Mesio and disto-incisal ridges.
The depressions
-one lingual fossae.

24. Enumerate the names of the
following elevations and
depressions?
Mesio-incisal R.
Disto-incisal R. Lingual ridge
Lingual fossa
Mesial
marginal ridge
Distal marginal
ridge
Cingulum

25. Mesial aspect
☻Geometrical outline of the crown:
☻Triangular in shape; the base
cervically and the apex incisally.
☻The cusp tip may be on a line
that bisects the centre of the root
or slightly lingual to it.
☻The outline:
☻The labial outline is slightlu
convex with the greatest convexity
at cervical 1/3 ( cervical ridge).
☻The lingual outline is convex at
cervical 1/3 (cingulum).
- Then concave at the middle 3rd
and convex at incisal 3rd
.

26. ☻The mesial cervical line is
convex incisally.
☻Surface anatomy:
☻The mesial surface is convex with
the maximum convexity at the incisal
third ( the contact area).
☻The root:
-The root is broad and taper to blunt
apex.
-It has a distal developmental
depression.

27. The distal aspect
☻Similar to the mesial aspect but
differ in.
- The cervical line curvature is less
than mesial ( by 1 mm).
-The contact area is broader and
located at the middle 1/3 (more
cervially).
-The developmental depression of
the root is more developed.

28. Incisal aspect
-The labio-lingual diameter is
greater than the mesio-distal
diameter but in less
proportion.
-The cusp tip is slightly lingual
and mesial to the center of the
crown.
Labial
Lingual
M D
-The distal slope is longer than
the mesial slope.
-All elevations and depressions can be
seen from this aspect.
-The mesial cusp ridge incline
lingual.

29. Enumerate the names of the following
elevations and depressions?
Cervical ridgr.
Labial ridge.
D. slope.
D.M.R
Cusp tip.
M. slope.
Lingual ridge.
M.M.R
Lingual fossa.
Cingulum.