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Questions and Answers
What is the main difference between the maxillary lateral incisor and the maxillary central incisor?
What is the characteristic of the distal outline of the maxillary lateral incisor?
What is the shape of the root of the maxillary lateral incisor?
How does the lingual fossa of the maxillary lateral incisor compare to that of the maxillary central incisor?
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What is the location of the crest of curvature on the mesial outline of the maxillary lateral incisor?
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What is a characteristic of the mesial aspect of a maxillary lateral incisor?
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What is a characteristic of the incisal aspect of a maxillary lateral incisor?
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What is a variation from the typical form of a maxillary lateral incisor?
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What can be found on the distal aspect of a maxillary lateral incisor?
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What is a characteristic of the lingual aspect of a maxillary lateral incisor?
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Study Notes
Maxillary Incisors Comparison
- Main difference: Maxillary lateral incisors are generally smaller and less symmetrical than maxillary central incisors.
- The shape of the maxillary central incisor is more pronounced with a broader incisal edge, while the lateral incisor has a narrower edge.
Distal Outline of the Maxillary Lateral Incisor
- The distal outline is often more rounded compared to the straight outline of the central incisor.
Root Shape
- The root of the maxillary lateral incisor is typically conical and slender, which distinguishes it from the broader root of the maxillary central incisor.
Lingual Fossa Comparison
- The lingual fossa of the maxillary lateral incisor is usually deeper and more pronounced than that of the maxillary central incisor.
Crest of Curvature Location
- The crest of curvature on the mesial outline is located higher than that of the maxillary central incisor, contributing to a distinctive profile.
Mesial Aspect Characteristic
- The mesial aspect reveals a more pronounced curvature at the cervical line, resulting in an overall rounded contour.
Incisal Aspect Characteristic
- The incisal aspect typically shows a triangular shape, with a narrower width compared to the central incisor.
Variations from Typical Form
- A common variation of the maxillary lateral incisor includes the presence of a peg-shaped or microdont form, providing a unique appearance.
Distal Aspect Features
- On the distal aspect, there may be a developmental groove or depression that is less pronounced than on the central incisor.
Lingual Aspect Characteristic
- The lingual aspect often features a prominent cingulum and a well-defined mesial and distal marginal ridge, enhancing its aesthetic appearance.
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Description
Test your knowledge on the maxillary lateral incisor, including its function, form, and anatomy, and its distinct features compared to the maxillary central incisor.
