Questions and Answers
What is the primary difference in the crown shape between the maxillary lateral incisor and the maxillary central incisor?
What is the characteristic of the mesio-incisal angle in the maxillary lateral incisor?
What is the characteristic of the disto-incisal angle in the maxillary lateral incisor?
What is the characteristic of the lingual fossa in the maxillary lateral incisor?
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What is the characteristic of the root of the maxillary lateral incisor?
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What is the characteristic of the mesial outline of the maxillary lateral incisor?
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What is the characteristic of the distal outline of the maxillary lateral incisor?
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Study Notes
Maxillary Lateral Incisor
- Resembles the maxillary central incisor in function, form, and anatomy, but is smaller in all dimensions except root length.
- Crown is more rounded, shorter, and narrower mesio-distally than the maxillary central incisor.
Principle Identifying Features
- Mesio-incisal angle is acute, and disto-incisal angle is more rounded.
- Single root with a tapered, distally curved, pointed apex.
- Lingual fossa is more concave than that of the maxillary central incisor.
Labial Aspect
- Crown is shorter and narrower than that of the maxillary central incisor, but the root is as long or longer.
- Labial surface of the crown is more convex than that of the maxillary central incisor.
- Mesial outline resembles that of the maxillary central incisor with a more rounded mesio-incisal angle.
- Crest of curvature (contact point) is located between the middle and incisal thirds mesially.
- Distal outline is more rounded, with the crest of curvature (contact point) at the center of the middle third.
- Root tapers evenly and curves distally at the apex.
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Description
This quiz covers the characteristics and features of the maxillary lateral incisor, including its shape, size, and root structure. Learn about the similarities and differences with the maxillary central incisor.
