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28 Cards in this Set
- Front
- Back
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At what age does the maxillary second premolar crown begin calcification?
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2 years
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How does the maxillary second premolar differ from the first premolar?
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1) Shorter mesiobuccal cusp slope compared to the distal slope
2) Absence of mesial marginal groove 3) Buccal and lingual cusp lengths of more equal length |
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When viewed from the occlusal aspect, which of the following are differences in the crown of the maxillary second premolar as compared to the first maxillary premolar?
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1) More rounded outline form
2) Shorter central groove 3) More secondary grooves leading to a wrinkled appearance |
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Maxillary second premolar:
Proximal contact |
Mesial/distal middle third
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Maxillary second premolar:
Shoulders |
Narrow
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Maxillary second premolar:
Direction of buccal cusps |
In the middle, not tipped
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Maxillary second premolar:
Size of buccal and lingual ridges in comparison to each other |
Similarly sized
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Maxillary second premolar:
Cusp size/height vs. maxillary first premolar |
Shorter
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Maxillary second premolar:
Mesial concavity? |
Not present
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Maxillary second premolar:
Mesial root depression? |
Present
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Maxillary second premolar:
Occlusal aspect shape |
Ovoid
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Maxillary second premolar:
Central groove |
Short
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Maxillary second premolar:
Supplemental grooves |
Many
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Maxillary second premolar:
# of lobes |
4
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Maxillary second premolar:
# of pulp horns |
2
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Maxillary second premolar:
Crown length |
8.5
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Maxillary second premolar:
Mesiodistal diameter |
7.0
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Maxillary second premolar:
Buccolingual |
9.0
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Maxillary second premolar:
Facial height of contour |
Cervical third
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Maxillary second premolar:
Lingual height of contour |
Middle third
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Maxillary second premolar:
Lingual height of contour |
Middle third
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Maxillary second premolar:
Root length |
14
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Maxillary second premolar:
Root grooves |
No distinct grooves
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Maxillary second premolar:
# of roots |
1 root
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Maxillary second premolar:
Pulp canal |
Usually 1
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Maxillary second premolar:
Age of eruption |
10-12
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Maxillary second premolar:
Root completed |
12-14
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Maxillary second premolar:
When does crown begin calcification? |
Two years old
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