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Dental Development and Anatomy > Molar Comparisons > Flashcards

Molar Comparisons Flashcards

1
Q

Maxillary and Mandibular Molars
! No deciduous ______
! NOT ______teeth

A

deciduous

succedaneous

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2
Q 
Maxillary Molar Arch Traits
!  \_\_\_\_\_\_ roots "  2 B
"  1 L
!  Generally, \_\_\_\_\_\_ cusps
"  3 \_\_\_\_\_\_ cusps
"  \_\_\_\_\_\_ may be missing entirely
!  \_\_\_\_\_\_ ridge
!  Broader B-L than \_\_\_\_\_\_
!  Triangular arrangement of the
MB, DB, and ML cusps
" \_\_\_\_\_\_
A 
three
four
major
DL
oblique
MD
trigone
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3
Q

Maxillary 1ST, 2ND, 3RD Molars BUCCAL VIEW

! The M-D crown dimension of ______ molar is greater

A

1st

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4
Q

Maxillary 1ST, 2ND, 3RD Molars BUCCAL VIEW
! The O-C crown dimension of ______
molar is greater

A

1st

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5
Q

Maxillary 1ST, 2ND, 3RD Molars BUCCAL VIEW
! The two buccal cusps are closest in size on ______ molar
! The buccal cusps are equal in height on ______ molar
! The DB cusp is slightly shorter than the MB cusp on ______ molar
! The DB cusp is much shorter than the MB cusp on the ______ molar

A

1st
1st
2nd
3rd

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6
Q

Maxillary 1ST, 2ND, 3RD Molars BUCCAL VIEW
!
The buccal groove is located farther ______ on the crown surface of the 2nd and 3rd molars
“ MB cusp on 2nd and 3rd molars are ______ than the DB

A

distally

larger

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7
Q

Maxillary 1ST, 2ND, 3RD Molars BUCCAL VIEW
!
1st molar roots have the greatest ______
“ less on the ______ molar
“ least separation on the ______
molar – if not fused
The roots of 1st and 2nd molar are about the ______

A

MD separation
2nd
3rd
same length

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8
Q

Maxillary 1ST, 2ND, 3RD Molars BUCCAL VIEW
! The distal inclination of the roots is greatest on the ______ molar
! Root trunk differences

A

3rd

more apically located on the 2nd, closer to root apices

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9
Q

Maxillary 1ST, 2ND, 3RD Molars LINGUAL VIEW
!
The 1st molar has a 5th cusp
“ The cusp of Carabelli (______ of the time)
The DL cusp of the ______ molar is larger than the DL cusp of the ______ molar

A

70%
1st
2nd

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10
Q

Maxillary 1ST, 2ND, 3RD Molars LINGUAL VIEW

! The ______ cusp of the 2nd molar is much shorter than the ______cusp from a lingual view

A

distolingual

mesiolingual

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11
Q

Maxillary 1ST, 2ND, 3RD Molars LINGUAL VIEW
! The DL groove does not extend as far mesially or cervically on the ______ molar
! The P root of the ______ molar is mesio- distally the widest of the three

A

2nd

1st

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12
Q

Maxillary 1st, 2nd, 3rd Molars OCCLUSAL VIEW
! The occlusal outline form of the 1st molar is:
“ asquare
“ a ______ “ ______
! The rhomboidal outline is more ______ on the 2nd molar

A

rhomboid
parallelogram
accentuated

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13
Q

Maxillary 1st, 2nd, 3rd Molars OCCLUSAL VIEW
! The 1st and 2nd molars have about the same ______ crown dimension
! 2nd molars are narrower M-D in the ______ half of the crown than 1st molars

A

BL

lingual

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14
Q

Maxillary 1st, 2nd, 3rd Molars OCCLUSAL VIEW
! There is more distal crown taper on ______ molar than first molars
! The oblique ridge is smaller on ______ molar than the ______ molar
“ barely visible or absent on ______ molar

A

2nd
2nd
1st
3rd

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15
Q 
Mandibular Molar Arch Traits
!  \_\_\_\_\_\_ roots "  1 M
"  1 D
!  Generally, \_\_\_\_\_\_ cusps
"  4 \_\_\_\_\_\_ cusps
"  5th (lesser size) – 1st molar
!  \_\_\_\_\_\_ M-D than B-L
!  Only teeth where the two major lingual cusps are approximately \_\_\_\_\_\_ in size
A 
two
four
major
broader
equal
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16
Q

Mandibular 1ST, 2ND, 3RD Molars BUCCAL VIEW
! The M-D crown dimension is greatest on the ______ molar
! The O-C crown dimension is greatest on the ______ molar

A

1st

1st

17
Q

Mandibular1ST, 2ND, 3RD MOLARS BUCCAL VIEW
! The first molar has ______ buccal cusps
! The first molar has ______ buccal grooves
“ the second and third molars usually have
only ______ groove


A

3
2
1

18
Q

Mandibular1ST, 2ND, 3RD MOLARS BUCCAL VIEW
! The ______ molar has the longest roots of the mandibular molars
! The ______ molar has the greatest root separation

A

1st

1st

19
Q

Mandibular1ST, 2ND, 3RD MOLARS BUCCAL VIEW
! The distal inclination of the roots is greatest on the ______ molar
! The cervico-apical dimension of the root trunk is greatest on the ______ molar

A

3rd

3rd

20
Q

Mandibular 1ST, 2ND, 3RD MOLARS LINGUAL VIEW
! The 2nd molar lingual groove may terminate on the ______ surface
! It may also just slightly extend onto the ______ surface in the occlusal third
“ Same for the ______ molar


A

occlusal
lingual
3rd

21
Q

Mandibular 1st, 2nd, 3rd MOLARS OCCLUSAL
! The first molar crown is a ______ shape
! The second molar is more ______
! The third molar is more ______

A

pentagon/hexagon
square/rectangular
oval

22
Q

Mandibular 1st, 2nd, 3rd MOLARS OCCLUSAL
VIEW
! The buccolingual dimension is greatest on ______ molars
! The 1st molar central developmental groove/cental fossa has a 􏰁______􏰀 form M-D

A

1st

zigzag

23
Q 
Mandibular 1st, 2nd, 3rd MOLARS OCCLUSAL
VIEW
!  The 1st molar major groove pattern:
" 􏰁\_\_\_\_\_\_􏰀
!  The grooves on the 2nd and
3rd molars form a 􏰁\_\_\_\_\_\_􏰀 " 􏰁\_\_\_\_\_\_􏰀
A

Y 5

+4

Dental Development and Anatomy (13 decks)

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