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Flashcards in Premolar Comparisons Deck (27)
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1

MAXILLARY PREMOLARS BUCCAL VIEW
! The first premolars have ____ crowns
! The first premolar ____ than the second premolar in the cervical third of the crown

larger
tapers more

2

MAXILLARY PREMOLARS BUCCAL VIEW
! The buccal cusp is more ____ on the maxillary first premolar
! The facial ridge is more prominent on the maxillary ____ premolar

pointed
first

3

MAXILLARY PREMOLARS BUCCAL VIEW
! The maxillary ____ premolar has greater symmetry than ____ premolar

second
first

4

MAXILLARY PREMOLARS BUCCAL VIEW
! The mesial cusp ridge is ____ on maxillary first premolar
! The distal cusp ridge is ____ on second premola

longer
longer

5

MAXILLARY PREMOLARS BUCCAL VIEW
! The first premolar often has ____
! ____ can dilacerate M or D directions

2 roots
buccal root

6

MAXILLARY PREMOLARS MESIAL VIEW
! Difference in cusp heights
! Mesial crown concavity
! 1st: Mesial marginal ridge groove ____


2nd premolar = lingual/buccal heights are identical
1st premolar = cervical depression that extends into root
97%

7

MAXILLARY PREMOLARS MESIAL VIEW
! The first premolar has a ____ that continues from the mesial crown depression/concavity

root depression/concavity

8

MAXILLARY PREMOLARS OCCLUSAL VIEW
! The occlusal outline form is more ____ on second premolars
! The lingual cusp tip on first premolars is more off center towards the ____

rounded
mesial

9

MAXILLARY PREMOLARS OCCLUSAL VIEW
! The mesial surface of the second premolar is more ____ from the occlusal view
! The facial cusp ridge is more prominent on the maxillary ____ premolar

convex
first

10

MAXILLARY PREMOLARS OCCLUSAL VIEW
! Mesial marginal ridge groove on almost all maxillary first premolars
! Central fossa developmental groove longer M-D on the maxillary ____ premolar

first (because MMRG)

11

MAXILLARY PREMOLARS OCCLUSAL VIEW
! There are more supplemental grooves on the maxillary ____ premolar
" 􏰂____􏰁

second
wrinkled

12

MAXILLARY PREMOLARS OCCLUSAL VIEW
! The occlusal table shape is more angular on the maxillary ____ premolar
! The fossae are closer to the center of the tooth on ____ premolars
" Size of transverse ridge on second premolar?

first
second
so the transverse ridge on the max 2nd premolar is smaller

13

MANDIBULAR PREMOLARS BUCCAL VIEW
! The O-C crown dimension is greater on ____ premolars
! 1st: The buccal cusp height is ____

greater
greater

14

MANDIBULAR PREMOLARS BUCCAL VIEW
! The mandibular first premolar cusp is ____

sharper

15

MANDIBULAR PREMOLARS BUCCAL VIEW
! The root of the mandibular second premolar is wider ____
! The root apices are sharper on ____ premolars

M-D
first

16

MANDIBULAR PREMOLARS OCCLUSAL VIEW
! The occlusal outline form of the first premolar is ____

diamond shaped

17

MANDIBULAR PREMOLARS OCCLUSAL VIEW
! The occlusal outline form of the mandibular second premolar crowns is
" ____ (2 L cusps)
" ____ (1L cusp)

square (2L cusps)
round/oval (1L cusp)

18

MANDIBULAR PREMOLARS OCCLUSAL VIEW
! Mandibular second premolars have a ____, ____ and ____
! Mandibular first premolars only have a ____ and ____
" Transverse ridge ____ bisected completely by CF groove

CF
MF
DF
MF
DF
NOT

19

MANDIBULAR PREMOLARS OCCLUSAL VIEW
! The mandibular ____ premolars have a larger occlusal table
! 􏰂____􏰁-shaped developmental groove pattern

second
Y

20

MANDIBULAR PREMOLARS OCCLUSAL VIEW
! The mandibular second premolar is wider ____
! The mandibular second premolar is wider ____
" Especially lingually if ____

BL
MD
2L cusps

21

MANDIBULAR PREMOLARS LINGUAL VIEW
! Lingual cusp height greater on mandibular ____ premolar
! From a lingual view, much more of the occlusal surface is visible on mandibular ____ premolars

second
first

22

MANDIBULAR PREMOLARS LINGUAL VIEW
! Mandibular ____ premolars have a greater M-D crown width when viewed from the lingual

second

23

MANDIBULAR PREMOLARS LINGUAL VIEW
! There is a ____ on the crown of second premolars with 2 L cusps
! First premolars have a ____
" M surface
" No groove on ____

lingual
mesiolingual groove
L surface

24

MANDIBULAR PREMOLARS MESIAL VIEW
! The mandibular second premolar has a greater ____ height
! The mesial marginal ridge of first premolars slopes ____

lingual cusp
lingually

25

MANDIBULAR PREMOLARS MESIAL VIEW
! ML groove evident on ____ premolar
! The difference between the height of the facial
and lingual cusps is much greater on ____ premolars

first
first

26

MANDIBULAR PREMOLARS MESIAL VIEW
! The mandibular first premolar has a greater amount of the occlusal surface ____ from a mesial view than second premolars
! The mandibular second premolar shows more of the occlusal surface than the ____ premolars

visible
maxillary

27

MANDIBULAR PREMOLARS MESIAL VIEW
! Both the mandibular first and second premolars’ occlusal tables are ____ on the roots

not centered