Maxillary & Mandibular Canines- Dental Anatomy

Canines are the _____________ and most stable.

longest

"_______ _________" - thick facial plate of bone.

canine eminence

"______________" of the mouth.

cornerstone

What is the function of Canine teeth?

holding or tearing

What is the developmental table for maxillary canines?

calcification: 4-5 months

Eruption: 11-12 years

Root completion: 13-15 years

(maxillary canines) Mesial contact =

lateral incisor

(maxillary canines) Distal contact =

1st premolar

Crown length ________ or slightly _______ than central incisor (maxillary canines)

equal, less

Mesial-distal crown is ____________ than central incisor (maxillary canines)

narrower

Labiolingually crown is _________ than central incisor. (maxillary canines)

wider

Root and combined crown/root length ____________ than central incisor. (maxillary canines)

longer

______________ tooth than central incisor. (maxillary canines)

stronger

What is the facial aspect of maxillary canines?

1. Pentagonal shape

2. Mesial outline convex from contact area to cervical line

3. Rounded mesioincisal angle

4. Height of contour in cervical 1/3

5. Distal surface shorter than mesial

6. Concave between contact and cervical line (calculus loves this area)

7. Rounded distoincisal angle

8. Cusp tip in line with center of root

9. Incisal surface divided into 2 parts

10. Distal cusp ridge is longer than the mesial (wear/tear might affect)

11. Labial ridge

12. Mesiolabial and distolabial developmental depressions

What two surfaces is the incisal surface divided into? (maxillary canines)

-Mesial cusp ridge

-Distal cusp ridge

What is the labial aspect of maxillary canines?

1. More narrow than the facial surface both on the crown and the root.

2. More developed cingulum and marginal ridges than incisors.

3. Lingual ridge

4. Mesiolingual and distolingual fossa

What is the mesial aspect of the maxillary canines?

1. Triangular in shape

2. Convex with concave lingual (incisal 1/2)

3. Proximal contact junction of the middle and incisal 1/3.

-midway between labial and lingual surface

What is the distal aspect of the maxillary canines?

1. CEJ curves less incisally than the mesial

2. Proximal contact areas both in incisal 1/3. More circular.

What is the incisal aspect of the maxillary canines?

1. Diamond in shape

2. Thickest labiolingually of all anterior teeth.

3. Distal 1/2 may be thinner than mesial 1/2

4. 4 ridges extend from cusp tip

-mesial

-distal

-labial

-lingual

What is the root aspect of the maxillary canines?

1. Single root

2. Longest root

3. Wider labial - lingual than mesial - distal

4. Tappers to the lingual

5. Apex curves to the distal

6. Longitudinal proximal grooves present

7. Both cervical and midroot cross sections are ovoid.

8. Large pulp chamber, single canal, and single pulp horn

What is the developmental table for mandibular canines?

Calcification: 4-5 months

Eruption: 9-10 years

Root completion: 12-14 years

______________ mesiodistally than maxillary canine.

Narrower

Labiolingual measurement of crown.

mandibular canines

________ developed cingulum and marginal ridges. (mandibular canines)

Less

_______________ lingual surface. (mandibular canines)

Smoother

Incisal-gingival as ______ or ___________ than maxillary canine.

long, longer

Root is usually ___________ than the maxillary canine root.

shorter

Total crown/root length is the ___________. (mandibular canines)

same

Cusp tip may not be as ________. (mandibular canines)

sharp

Labial surface less _________. (mandibular canines)

convex

What is the labial aspect of mandibular canines?

1. Straight mesial outline

2. Distal outline convex

3. Distoincisal angle more rounded

4. Shorter distal margin

5. Distal cusp ridge longer than mesial

6. Height of contour in cervical 1/3

What is the lingual aspect of mandibular canines?

1. Resembles the labial

2. Less prominent anatomy

3. Narrower than labial

4. Height of contour in cervical 1/3 or cingulum

What is the mesial aspect of mandibular canines?

1. Cusp tip lingually inclined

2. Proximal contact

-Incisal 1/3

-Ovoid in shape

-Centered labiolingually

What is the distal aspect of mandibular canines?

1. Resembles mesial surface yet smaller in all dimensions

2. Proximal contact junction of incisal and middle 1/3

3. More circular in shape

What is the incisal aspect of mandibular canines?

1. Resembles maxillary canine

2. Distal incisal ridge slants more to the lingual than the mesial incisal ridge

3. Cingulum offset to the distal

What is the root aspect of mandibular canines?

1. Same features as the maxillary canine root

2. Longest root in the mandibular arch, 2nd overall to the maxillary canine

3. Usually single rooted

4. Sometimes bifurcated

5. Proximal root concavities may be so deep it divides the pulp canal into buccal and lingual canals