Podcast
Questions and Answers
What characteristic differentiates the mesial surface of the maxillary canine from its distal surface?
What characteristic differentiates the mesial surface of the maxillary canine from its distal surface?
How does the labio-lingual dimension of the maxillary canine compare to the mesiodistal dimension?
How does the labio-lingual dimension of the maxillary canine compare to the mesiodistal dimension?
What is the main functional significance of the developmental depressions in the roots of canines?
What is the main functional significance of the developmental depressions in the roots of canines?
Which feature regarding the cusp slope is true for the maxillary canine?
Which feature regarding the cusp slope is true for the maxillary canine?
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Which statement describes the apex of the root of the maxillary canine?
Which statement describes the apex of the root of the maxillary canine?
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What is the typical shape of the crown of a maxillary canine?
What is the typical shape of the crown of a maxillary canine?
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What does the cingulum development primarily contribute to in the mandibular canine?
What does the cingulum development primarily contribute to in the mandibular canine?
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How do the labial and lingual surfaces of the maxillary canine root compare?
How do the labial and lingual surfaces of the maxillary canine root compare?
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In relation to the lateral incisor, where does the mesial surface of the mandibular canine contact?
In relation to the lateral incisor, where does the mesial surface of the mandibular canine contact?
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How does the cervical line of the distal aspect of the maxillary canine compare to its mesial aspect?
How does the cervical line of the distal aspect of the maxillary canine compare to its mesial aspect?
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What feature is found on the lingual aspect of a maxillary canine crown?
What feature is found on the lingual aspect of a maxillary canine crown?
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At what junction is the mesial contact area of the maxillary canine located?
At what junction is the mesial contact area of the maxillary canine located?
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What is the most significant function of canines in dental occlusion?
What is the most significant function of canines in dental occlusion?
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What is the cervical line curvature of a maxillary canine crown?
What is the cervical line curvature of a maxillary canine crown?
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What anatomical feature separates the labial and lingual surfaces of the maxillary canine?
What anatomical feature separates the labial and lingual surfaces of the maxillary canine?
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How does the distal curvature of a maxillary canine's root typically present?
How does the distal curvature of a maxillary canine's root typically present?
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What is the chronological age for the eruption of the maxillary permanent canine?
What is the chronological age for the eruption of the maxillary permanent canine?
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Which of the following describes the relationship of the mesial surface of the maxillary canine crown?
Which of the following describes the relationship of the mesial surface of the maxillary canine crown?
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What is the shape of the crown of the maxillary canine?
What is the shape of the crown of the maxillary canine?
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At what age is root completion of the mandibular permanent canine typically completed?
At what age is root completion of the mandibular permanent canine typically completed?
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What is the significance of the distal slope of the cusp of the maxillary canine compared to the mesial slope?
What is the significance of the distal slope of the cusp of the maxillary canine compared to the mesial slope?
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Which area of the maxillary canine is at the center of the middle third?
Which area of the maxillary canine is at the center of the middle third?
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Which characteristic is NOT true about the root of the maxillary canine?
Which characteristic is NOT true about the root of the maxillary canine?
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What represents the maximum convexity on the labial surface of the maxillary canine?
What represents the maximum convexity on the labial surface of the maxillary canine?
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Study Notes
Maxillary Canine
- The maxillary canine is the largest tooth in the anterior dentition.
- The labial surface of the root is smooth and convex at all points while the crown tapers lingually.
- The cervical line has a more even curvature from the lingual aspect.
- The cingulum is large and in some cases, it is pointed like a small cusp.
- A well-developed lingual ridge extends from the cingulum to the cusp tip.
- Shallow concavities between the lingual ridge and marginal ridges are called mesial and distal lingual fossae.
- The root is narrower lingually than labially.
- It is smooth and convex at all points from the cervical line to the apical end.
- The crown is triangular or wedge-shaped, with its base cervically and its tip represented by the tip of the cusp.
- The mesial surface of the crown has convexities at all points except the area above the contact area where the surface is concave and flat.
- Tooth tip is even labial on the long axis of the tooth.
- The root is conical with a blunt apex and may be curved labially.
- The root surface appears broad with a shallow developmental depression.
- Developmental depressions on the heavy roots help to anchor the teeth in the alveoli, preventing rotation and displacement.
Distal Aspect
- The distal aspect is similar to the mesial aspect, with the following variations:
- Cervical line is less curved
- Distal marginal ridge is heavier and more irregular
- Contact area is more cervically and the surface above it is more concave
- Root developmental depression is more prominent
Incisal Aspect
- The labio-lingual dimension is greater than the mesiodistal dimension.
- The tip of the cusp is labial to the center of the crown labio lingually and mesial to the center mesiodistally.
- The mesial cusp slope is less steep than the distal cusp slope.
- The labial surface is convex.
- The incisal view gives the impression that the entire distal portion of the crown is stretched out to make contact with the first premolar.
- All elevations and depressions can be seen from the incisal aspect.
- The ridge of the middle labial lobe is very noticeable labially from the incisal aspect.
- Attains greatest convexity at the cervical third of the crown, becoming broader and flatter at the middle and incisal thirds.
- The cingulum development makes up the cervical third of the crown lingually.
Mandibular Canine
- The mesial surface of the crown contacts the distal side of the lateral incisor (at the incisal third just below the mesioincisal angle).
Chronology
-
Maxillary permanent Canine:
- First evident of calcification: 4-5 months
- Enamel completed: 6-7 years
- Eruption: 11-12 years
- Root completed: 14-15 years
-
Mandibular permanent Canine:
- First evident of calcification: 4-5 months
- Enamel completed:: 6-7 years
- Eruption: 9-10 years
- Root completed: 12-13 years
Maxillary Canine Relation
- The mesial surface of the crown contacts the distal side of the lateral incisor (at the junction between the incisal and middle thirds).
- The distal surface of the crown contacts the mesial side of the first premolar (at the middle of the middle third).
- The contact areas of the maxillary canine are at different levels cervicoincisally.
Labial Aspect of the Crown
- The geometrical shape of the crown is trapezoidal with a short arm at the cervix.
- Mesial outline is convex from the cervical line to the contact area.
- Mesial contact area is at the junction of the middle and incisal thirds.
- Distal outline is concave from the cervical line to the contact area.
- Distal contact area is at the center of the middle third.
- Cusp tip is on a line with the center of the root or sometimes slightly mesially placed.
- The cusp has mesial and distal slopes with the distal slope being longer than the mesial slope. Both slopes show a tendency toward concavity before wear has taken place.
- The cervical line is convex root-wise.
- The crown labial surface is convex, with maximum convexity at the cervical third, representing the cervical ridge.
- The middle lobe is prominent buccally, forming the labial ridge.
- There are two developmental depressions - mesial and distal - to the labial ridge.
Labial Aspect of the Root
- The root of the maxillary canine is long, slender, and conical in shape, with a bluntly pointed apex.
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Description
This quiz focuses on the anatomy of the maxillary canine, the largest tooth in the anterior section of the mouth. Participants will learn about its unique characteristics, such as the shape, surfaces, and anatomical features that distinguish it from other teeth. Test your knowledge of maxillary canine details and dental terminology.
