Maxillary 2nd molar arch traits Flashcards
1
Q
at what age do they erupt?
A
12-13 years
2
Q
at what age is the root completed?
A
14-16 years
3
Q
What is the one major difference between the 1st and 2nd molar?
A
DB cusp is less prominent and narrower which makes the tooth seem overall smaller
4
Q
Heights of contour from buccal view
A
Mesial: Junction of occlusal and middle 1/3
Distal: Middle 1/3
5
Q
Root shape
A
less divergence and less curvature
6
Q
Is there a cusp of carabelli?
A
no
7
Q
Heights of Contour from the mesial view
A
buccal: cervical 1/3
lingal: middle 1/3
8
Q
how are the roots oriented from the mesial view?
A
more parallel
9
Q
From the distal view what portion of the tooth is more visible?
A
the occlusal table because there is a more apically placed DMR
10
Q
Varitations that can be present
A
DL cusp can be absent
Buccal root can fuse together
