Questions and Answers
Each of the following incorrectly describes the canine eminence EXCEPT one. Which one is the EXCEPTION?
Both maxillary and mandibular canines have prominent marginal ridges.
False
Mandibular canines usually have a bifurcation in the apical third.
False
If a lingual ridge is present, there will be two lingual fossae.
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The contact areas for the maxillary canine are located in the incisal third.
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Compared to maxillary canines, mandibular canines have all of the following EXCEPT one. Which one is the EXCEPTION?
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Mandibular canine roots have proximal root grooves, but maxillary canines do not.
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What do maxillary and mandibular canines have in common regarding their time sequence for calcification?
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The cusp tip of the mandibular canine is located more labially than the cusp tip of the maxillary canine.
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Which anterior teeth are widest mesiodistally?
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The mesial marginal ridge of the maxillary canine is more developed than the distal marginal ridge.
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A basic difference between canines and incisors is that canines develop from four developmental lobes whereas incisors develop from three.
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The root of the mandibular canine is sometimes bifurcated like the...?
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Although the labiolingual and mesiodistal widths of the maxillary canine are about equal, the crown is usually wider mesiodistally.
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What is figure 'b' in the illustration?
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The lingual ridge is present, there will be two lingual fossae.
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What is usually the longest root in the mouth?
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Maxillary canines erupt about two years after the mandibular canines.
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Compared to their maxillary counterparts, which of the following descriptions of mandibular canines is accurate EXCEPT one? Which is the EXCEPTION?
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The canine fossa is a depression in the maxillae below the infraorbital foramen.
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Both maxillary and mandibular canines are more rounded on the distal surface.
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Each of the following is true of the cusp tip EXCEPT one. Which one is the EXCEPTION?
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The canines' stability can be attributed to all of the following factors EXCEPT one. Which one is the EXCEPTION?
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What is figure 'A' in the illustration?
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Which statements correctly describe features of canines? (Select all that apply)
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Study Notes
Canine Characteristics
- Canine eminence refers to a projection of bone.
- Maxillary and mandibular canines have different landmarks; both possess prominent marginal ridges.
- Mandibular canines typically do not exhibit bifurcation in the apical third.
Tooth Anatomy
- If a lingual ridge exists, two lingual fossae will be present.
- Contact areas for maxillary canines are located in the middle or gingival thirds, not the incisal third.
- Mandibular canines are not wider in labiolingual width compared to maxillary canines.
Root Structure
- Mandibular canine roots do possess proximal root grooves; while maxillary canines usually do not.
- The root of the mandibular canine is typically not bifurcated like certain other teeth.
Development and Eruption
- Maxillary and mandibular canines exhibit the same calcification time sequence.
- Cusp tips of mandibular canines are located more lingually than those of maxillary canines.
- Maxillary central incisors are the widest anterior teeth mesiodistally.
- Mesial marginal ridges of maxillary canines are less developed compared to distal marginal ridges.
Developmental Lobes
- Canines develop from four lobes while incisors arise from three; however, canines are considered more stable teeth.
Eruption Timing
- Maxillary canines erupt approximately two years after mandibular canines.
- Root formation for maxillary canines usually completes between ages 13 and 15.
Distinctions Between Canines
- Mandibular canines generally have shorter roots compared to maxillary canines.
- Canine fossa is found in the maxillae beneath the infraorbital foramen, but the canine eminence is located on the lingual surface, separating mesial and distal fossae.
Distal Surface and Contact Areas
- Both types of canines tend to have more rounded distal surfaces, but their distal contact areas are located not in the incisal third.
Cusp Tip Characteristics
- Newly erupted canines do not have cusp tips shaped like mamelons.
- Stability of canines is a result of various factors including the large cingulum.
Visual Identification
- Figure "A" illustrated represents a mandibular canine, while figure "b" corresponds to a maxillary canine.
Canine Features Summary
- Maxillary canines feature three facial lobes resembling those of incisors, typically with a single pulp horn and root; mandibular canines usually also have one pulp horn and can present one or two roots.
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Description
Test your knowledge on the canine eminence and the differences between maxillary and mandibular canines with this quiz. Each question challenges your understanding of dental anatomy and the structural features of dog teeth. Perfect for dental students and enthusiasts alike!
