Dental Anatomy Permanent Premolars Flashcards Preview

NBDE I COPY > Dental Anatomy Permanent Premolars > Flashcards

Flashcards in Dental Anatomy Permanent Premolars Deck (43)
Loading flashcards...
1

what tooth has the most pronounced developmental marginal groove of any maxillary tooth?

maxillary 1st premolar

2

what maxillary tooth has a mesial concavity that makes it difficult to adapt a matrix band?

maxillary 1st premolar

3

the cervical cross section of the maxillary 1st premolar exhibits a ___shaped root outline

-kidney
-it also exhibits a kidney shaped pulp chamber floor

4

what non-molar tooth that most frequently exhibits 3 roots is the ___

-maxillary 1st premolar
-also the non-molar tooth that usually has 2 roots

5

the facial cusp of the maxillary 1st premolar is offset to the ___

distal

6

which is the only premolar tooth with a mesio-facial cusp ridge that is longer than the disto-facial cusp ridge?

maxillary 1st premolar

7

which premolar exhibits the steepest cusp inclines?

maxillary 1st premolar

8

both maxillary premolar lingual cusps are offset to the ___. where do the buccal cusps of the maxillary premolars offset?

-lingual cusps offset to the mesial
-buccal cusp of the 1st premolar offsets to the distal
-buccal cusp of the 2nd premolar offsets to the mesial

9

what is the posterior tooth that has the greatest cervico-occlusal crown height?

maxillary 1st premolar

10

what is the non-molar tooth with the sharpest demarcation between pulp chamber and canal?

maxillary 1st premolar

11

the size and position of the cusps are more identical for the _(1st/2nd)_ maxillary premolars than the _(1st/2nd)_

2nd, 1st

12

which maxillary premolar has two cusps that are of equal height?

maxillary 2nd premolar

13

what is the most symmetrical posterior tooth?

maxillary 2nd premolar (has to do with cusps)

14

which tooth has a wrinkly appearance and why?

maxillary 2nd premolar, due to its short central groove with many supplemental grooves

15

which tooth has fossa that are closest in size compared to any other posterior tooth?

maxillary 2nd premolar

16

what premolar has a uniquely prominent triangular ridge?

-mandibular 1st premolar
-this gives it its characteristic snake eyes
-no central groove

17

which premolar frequently has separate mesial and distal pits?

-mandibular 1st premolar (snake eyes)
-this is due to its triangular ridge

18

which tooth is the only one that has a mesiolingual developmental groove?

mandibular 1st premolar

19

the mesiolingual developmental groove on the mandibular 1st premolar originates from ___

the occlusal pit

20

the mesiolingual developmental groove on the mandibular 1st premolar extends onto the ___ surface

proximal

21

the mesiolingual developmental groove on the mandibular 1st premolar has what affect on the mesial marginal ridge?

it makes it run at a 45 degree angle

22

between the mandibular 1st and 2nd premolars, which one has a mesial marginal ridge that is located more cervical than the distal?

mandibular 1st premolar

23

for a mandibular 1st premolar, more of the occlusal surface can be seen from the _(M/D)_ than the _(M/D)_

mesial than distal, due to the 45 degree angle of the mesial marginal ridge

24

the occlusal outline for the mandibular 1st premolar from the occlusal view is ___

diamond shaped

25

in the rare event of a second canal for a mandibular 1st premolar, it is most likely located ___

on the lingual

26

what is the only premolar that frequently only has one pulp horn?

mandibular 1st premolar

27

the lingual cusp of the mandibular 1st premolar is approximately ___ the height of the facial cusp

2/3

28

the lingual cusp of the mandibular 1st premolar is similar in development to the ___ of a canine

cingulum

29

the lingual cusp of what tooth, in normal occlusion, does not occlude?

mandibular 1st premolar

30

which tooth has the most variation of all posterior teeth in facial vs lingual cusp height?

mandibular 1st premolar