Questions and Answers
What is a characteristic of the lingual surface of the mandibular first premolar?
A mesiolingual developmental groove
On which surface of the mandibular first premolar is the developmental groove found?
Lingual surface
Which of the following teeth typically has a mesiolingual developmental groove?
Mandibular first premolar
What is the location of the developmental groove on the mandibular first premolar?
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What is a characteristic feature of the lingual surface of the mandibular first premolar?
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What is characteristic of all mandibular posterior teeth?
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Where is the crest of contour typically located on mandibular posterior teeth?
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What is unique about the buccal surfaces of mandibular posterior teeth?
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Which of the following is true about mandibular posterior teeth?
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What is a characteristic feature of the buccal surfaces of mandibular posterior teeth?
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How many well-formed cusps does the second premolar have in most cases?
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What is the characteristic of the buccal cusp of the second premolar?
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How many lingual cusps does the second premolar have in most cases?
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What is the arrangement of the cusps on the second premolar?
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What can be said about the cusps of the second premolar?
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What is the relationship between the distal marginal ridge and the mesial marginal ridge in terms of height?
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What can be said about the inclination of the distal marginal ridge?
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Which of the following statements is true about the marginal ridges?
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How do the heights of the distal and mesial marginal ridges compare?
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What can be inferred about the shape of the tooth from the marginal ridges?
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What are the two parts of the mandibular first premolar called?
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What is the characteristic feature of the most common type of mandibular first premolar?
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What is the location of the developmental depression and groove in the most common type of mandibular first premolar?
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What is the type of tooth that exhibits a mesiolingual developmental depression and groove?
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What is the term for the depressions in the mandibular first premolar?
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Study Notes
Characteristics of Mandibular Premolars
- Mandibular second premolars typically have three well-formed cusps: one large buccal cusp and two smaller lingual cusps.
- The lingual surface of the mandibular first premolar is characterized by the presence of a mesiolingual developmental groove.
- The buccal surfaces of all mandibular posterior teeth have a convexity and a characteristic location of the crest of contour.
- The distal marginal ridge of the mandibular first premolar is higher than the mesial marginal ridge, with less inclination lingually, forming the mesial and distal fossae.
- The most common type of mandibular first premolar features a mesiolingual developmental depression and groove.
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