Mandibular Canines

Universal numbering

22, 27

Palmer numbering

3, 3

International Numbering

33, 43

Mandibular canine cusp is

less developed

Mesial-distally, mandibular canines are

more narrow than the maxillary

Mesial outline of the crown is

straight with the mesial outline of the root

Mesial cusp ridge is _______ than the distal cusp ridge

shorter

mesial slope is more

horizontal

Inciso-cervically, the mandibular canine has

the longest crown of any tooth

The________ of the mandibular canine is present

lingual fossa

How many lingual fossa does the mandibular canine have?

Two

Are the lingual fossae prominent in the mandibular canine?

Not as prominent as on the maxilla

The _________ are also less distinct

marginal ridges

Cingulum is ________ to the midline

distal

lingual surface of the crown

smoother, flatter, less developed cingulum, less bulk to the marginal ridges

Distally, the facial curvature

C-shaped, from cusp tip to root tip

Root length of mandibular canine is

largest in the mandibular arch but not in the mouth

F-L dimension is ________________ than the M-D dimension

greater

The cusp tip are more likely to be inclined in a

lingual direction in hr mandibular canine (think C-shape)

BEcause of the C-shape incline incisally,

we see more of the facial view from the incisal view

Roots

taper towards the distal

Roots are generally __________ than those of the maxillary canine

shorter

ANterior tooth most frequently exhibiting

a bifurcated root

Cross-sectionally, roots are

wider faciolingually

What can we see on both the mesial and distal surface (but more on the distal surface) in a cross section of the root?

Root depressions

Mandibular canine root may have

2 canals with one or two roots

If we have two roots on the mandibular canine, what would they be?

One facial, one lingual

Mesial contact point is at

the incisal third

Distal contact point is at

the junction of the incisal and middle third

CAlcification begins

4-5 months old

enamel is completed

6-7 years

eruption

9-10 years

Root Completion Age

12-14 years