Premolar Comparisons

Question 1

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

Answer 1

larger

tapers more

Question 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

Answer 2

pointed

first

Question 3

MAXILLARY PREMOLARS BUCCAL VIEW

! The maxillary ____ premolar has greater symmetry than ____ premolar

Answer 3

second

first

Question 4

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

Answer 4

longer

longer

Question 5

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

Answer 5

2 roots

buccal root

Question 6

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


Answer 6

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

Question 7

MAXILLARY PREMOLARS MESIAL VIEW

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

Answer 7

root depression/concavity

Question 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 ____

Answer 8

rounded

mesial

Question 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

Answer 9

convex

first

Question 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

Answer 10

first (because MMRG)

Question 11

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

Answer 11

second

wrinkled

Question 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?

Answer 12

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

Question 13

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

Answer 13

greater

greater

Question 14

MANDIBULAR PREMOLARS BUCCAL VIEW

! The mandibular first premolar cusp is ____

Answer 14

sharper

Question 15

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

Answer 15

M-D

first

Question 16

MANDIBULAR PREMOLARS OCCLUSAL VIEW

! The occlusal outline form of the first premolar is ____

Answer 16

diamond shaped

Question 17

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

Answer 17

square (2L cusps)

round/oval (1L cusp)

Question 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

Answer 18

CF
MF
DF
MF
DF
NOT

Question 19

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

Answer 19

second

Y

Question 20

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

Answer 20

BL
MD
2L cusps

Question 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

Answer 21

second

first

Question 22

MANDIBULAR PREMOLARS LINGUAL VIEW

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

Answer 22

second

Question 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 \_\_\_\_

Answer 23

lingual
mesiolingual groove
L surface

Question 24

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

Answer 24

lingual cusp

lingually

Question 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

Answer 25

first

first

Question 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

Answer 26

visible

maxillary

Question 27

MANDIBULAR PREMOLARS MESIAL VIEW

! Both the mandibular first and second premolars’ occlusal tables are ____ on the roots

Answer 27

not centered