Dental Anatomy: Canines

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Questions and Answers

Where is the contact area primarily located?

At the middle third (correct)

At the incisal edge

At the occlusal surface

At the cervical region

What is described as being more developed in the root?

The contact area

The developmental depression (correct)

The apical foramen

The overall length of the root

What characteristic of the contact area is mentioned?

It is narrower than usual

It is only present in molars

It is located at the incisal third

It is broader and more cervical (correct)

Which part of the root is emphasized for its development?

The developmental depression Signup and view all the answers

In terms of the anatomical features, what is significant about the developmental depression of the root?

It is more developed than usual Signup and view all the answers

Which section describes the tooth from the front to the back?

Mesiodistal section Signup and view all the answers

What type of tooth is indicated by 'B' in the content?

Lower canine Signup and view all the answers

In what view would you be able to see the palatal and buccal surfaces of a tooth?

Labiolingual section Signup and view all the answers

Which section is most likely to show the pulp cavity of the tooth clearly?

Transverse section Signup and view all the answers

What surface of the lower canine makes contact with the lateral incisors?

Mesial surface Signup and view all the answers

What differentiates 'A' from 'B' in the context of tooth identification?

Position in the mouth Signup and view all the answers

Which tooth does the lower canine contact on its mesial surface?

1st premolar Signup and view all the answers

In terms of contact points, how does the lower canine relate to the lateral incisor?

Mesially to the distal surface Signup and view all the answers

What is the order of contact points for the lower canine?

Lateral incisor, 1st premolar Signup and view all the answers

Which surface of the lower canine does NOT make contact with any adjacent teeth?

Buccal surface Signup and view all the answers

What is the term for the bone ridge located over the labial surface of the root?

Canine eminence Signup and view all the answers

At what age does the first evidence of calcification for the maxillary canine occur?

4-5 months Signup and view all the answers

Why is the canine eminence significant in dental anatomy?

It is crucial for facial expression. Signup and view all the answers

What dental organ appears first during the development of the maxillary canine?

Enamel organ Signup and view all the answers

Which of the following age milestones is relevant for the maxillary canine's development?

First evidence of calcification Signup and view all the answers

What is true about the distal outline in relation to the contact area?

The distal outline is convex until the contact area. Signup and view all the answers

How does the length of the distal slope compare to the mesial slope?

The distal slope is longer than the mesial slope. Signup and view all the answers

Which statement best describes the surface anatomy of the outline?

The surface is convex both mesiodistally and inciso-cervically. Signup and view all the answers

Where is the distal contact area located compared to the mesial contact area?

More cervical than the mesial contact area. Signup and view all the answers

Which feature characterizes the convexity of the distal outline?

It is convex until the contact area. Signup and view all the answers

What does the term 'slope' refer to in the context of the content provided?

The angle of inclination of a surface. Signup and view all the answers

Which feature is indicated by 'Cingulum' in the provided content?

The raised area at the base of the tooth crown. Signup and view all the answers

What is the primary function of the 'Lingual' structure mentioned?

To form the surface that comes in contact with the tongue. Signup and view all the answers

What does 'fossa' typically refer to in dental anatomy?

A depression or pit on the tooth. Signup and view all the answers

Which of the following terms is closely associated with 'ridge' in a dental context?

A longitudinal elevation along the tooth surface. Signup and view all the answers

Study Notes

Canines

Also called cuspids, due to having one cusp.
Each cusp has two slopes (or cusp ridges): mesial and distal.
Maxillary and mandibular canines are called corner stones of the mouth.
The maxillary canine has the longest root for good anchorage.
The root forms the cusp and labial ridge.
The bone ridge over the labial surface of the root is called canine eminence, which is important for facial expression.
Upper canines (maxillary) have a specific contact point: mesially with the distal surface of the lateral incisors, and distally with the mesial surface of the first premolar.
Canines have four surfaces and an incisal surface.
The canine has one root.
Labial aspect: geometrical outline of the crown - typically trapezoid shape. Mesial outline starts from the cervical line, which is convex till the junction of middle and incisal thirds (contact area), then becomes concave till the middle third (contact area), then convex to the cusp tip. The cervical line is convex root - The distal slope is longer than the mesial slope.
Surface anatomy: The surface is convex both mesiodistally and inciso-cervically. Elevations include cervical ridge, labial ridge, cusp, and depressions.
The root is long, slender, conical in shape, with distal curvature of the apical third
Lingual aspect is similar to the labial aspect in geometry, but crown and root converge lingually. The cingulum, marginal ridges (mesial and distal), mesio and disto-incisal ridges, and two lingual fossae are present.
Chronology:
- Appearance of the dental organ (m.i.u): 6
- First evidence of calcification (months): 4-5
- Enamel completed (years): 6-7
- Eruption (years): 11-12
- Root completed (years): 15
Type and function: Holding and tearing food, aesthetic purposes.
Number of lobes: The image does not show lobe information.

Lower Canines (Mandibular Canines)`

Similar to upper canines in wedge shape, but with a longer crown, shorter root, and less mesiodistal dimensions.
Labial aspect: geometrical outline of the crown- trapezoid shape, with the short side, the long side, and an outline that is straight with the mesial outline of the root. The mesial contact area is at the incisal third, with the distal outline, which is more cervical.
The distal slope is longer than the mesial slope.
The surface anatomy is similar to that of the upper canine (cervical ridge, labial ridge, cusp, depressions).
The root- shorter than upper canines. slender, conical in shape, with distal curvature of the apical Third & more pointed apex.
Lingual aspect has a similar geometrical outline to the labial surface, and the mesial and distal sides of the crown and root converge lingually. Flatter, smoother, and regular. Elevation/depression details are listed below, similar to upper canines.
Chronology:
- Appearance of the dental organ (m.i.u): 6
- First evidence of calcification (months): 4-5
- Enamel completed (years): 6-7
- Eruption (years): 10
- Root completed (years): 13
Type and function: Holding and tearing food, aesthetic purposes.
Number of lobes: The image does not show lobe information.

Pulp Cavity

Mesio-distal section: has a narrow pulp chamber.
The root canal is long and tapers down to the apical foramen.
Labio-lingual section: The pulp chamber is pointed incisally.
The root canal starts cervically wide, then narrows toward the apical foramen.

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Description

Explore the structure and significance of canines in dental anatomy. This quiz covers their unique features, including cusp characteristics, root structures, and their role as corner stones of the mouth. Perfect for dental students looking to enhance their knowledge about oral anatomy.