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Questions and Answers
Which aspect of the upper anterior teeth has a pronounced cingulum, pronounced M&DMR, and pronounced DIC&MIC ridges?
Which aspect of the upper anterior teeth has a pronounced cingulum, pronounced M&DMR, and pronounced DIC&MIC ridges?
- Mesial aspect (a)
- Labial aspect (c)
- Distal aspect (b)
- Lingual aspect (a) (correct)
Which aspect of the upper anterior teeth has a geometric outline that is triangular with a convex CL toward the incisal ridge?
Which aspect of the upper anterior teeth has a geometric outline that is triangular with a convex CL toward the incisal ridge?
- Lingual aspect (b)
- Mesial aspect (a)
- Distal aspect (c) (correct)
- Labial aspect (a)
Which aspect of the upper anterior teeth has a geometric outline that is trapezoid with a well-developed M&DMR and deep lingual fossa?
Which aspect of the upper anterior teeth has a geometric outline that is trapezoid with a well-developed M&DMR and deep lingual fossa?
- Distal aspect (a)
- Mesial aspect (c)
- Lingual aspect (a) (correct)
- Labial aspect (b)
Which aspect of the upper anterior teeth has a crown that is smaller, with the CI greater than MD and two rounded angles?
Which aspect of the upper anterior teeth has a crown that is smaller, with the CI greater than MD and two rounded angles?
Which aspect of the upper anterior teeth has a root that is very narrow resembling a ridge extending for its whole length?
Which aspect of the upper anterior teeth has a root that is very narrow resembling a ridge extending for its whole length?
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Study Notes
Upper Anterior Teeth Morphology
-
Lingual Aspect:
-
Central Incisor:
- A pronounced cingulum.
- Prominent mesial and distal marginal ridges (M&DMR).
- Well-defined distal and mesial incisal crests (DIC & MIC) ridges.
-
Lateral Incisor:
- Geometric outline: A triangular shape with a convex cervical line (CL) toward the incisal ridge.
-
Canine:
- Geometric outline: A trapezoid shape with well-developed marginal ridges and a deep lingual fossa.
-
-
Crown:
- Lateral Incisor:
- Smaller crown.
- A crown width (CI) greater than the mesiodistal width (MD).
- Two rounded angles.
- Lateral Incisor:
-
Root:
- Lateral Incisor:
- A very narrow root, resembling a ridge extending for its entire length.
- Lateral Incisor:
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