Premolars

Question 1

Which max tooth has the most pronounced developmental marginal groove of the maxillary?

Answer 1

Max 1st premolar

Question 2

Which tooth has a mesial concavity making it difficult to adapt a matrix band?

Answer 2

Max 1st premolar

Question 3

Which tooth has a cervical cross section that looks like a kidney bean?

Answer 3

Max 1st premolar

Question 4

Which nonmolar tooth is most likely to have 2-3 roots?

Answer 4

Max 1st premolar

Question 5

What side is the maxillary 1st premolar buccal cusp offset to?

Answer 5

distal

Question 6

Which cusp ridge is longest on the maxillary 1st premolar?

Answer 6

Mesio-facial cusp ridge

Question 7

Which premolar has the steepest cusp inclines?

Answer 7

Max 1st premolar

Question 8

What side is the maxi 1st premolar lingual cusp offset to?

Answer 8

Mesial

Question 9

Which posterior tooth has the greatest cervico occlusal crown height?

Answer 9

Max 1st premolar

Question 10

How do the buccal and lingual cusps compare in height on the maxillary 2nd premolar?

Answer 10

same height

Question 11

Which posterior tooth is the most symmetrical?

Answer 11

Max 2nd premolar

Question 12

Which tooth has a really shot central groove with a lot of supplemental grooves making it look wrinkly?

Answer 12

Max 2nd premolar

Question 13

Which premolar has a unique prominent triangular ridge with no central groove? and fossa on the side of the tri ridge that look like snake eyes?

Answer 13

Mand 1st premolar

Question 14

Which side of tooth 21 does the developmental groove originate from?

Answer 14

Mesiolingual

Question 15

What’s special about the mesiolingual groove of the mand 1st premolar?

Answer 15

It’s the only tooth that has it

Question 16

What’s different about the mesial marginal ridge vs distal marginal ridge on the mand 1st premolar?

Answer 16

Mesial: it’s got a developmental groove that makes it run at 45 degrees.
Distal: no groove and more coronal than the mesial.

Question 17

What the shape of the mand 1st premolar from occlusal?

Answer 17

diamond shaped

Question 18

Where would a second canal be located for a mand 1st premolar? rarely happens

Answer 18

Lingual

Question 19

Which premolar is the only premolar to only have one pulp horn?

Answer 19

Mand 1st premolar

Question 20

How high is the lingual cusp of the mand 1st premolar compared to the facial cusp?

Answer 20

2/3 the height.

Question 21

Which posterior tooth has most cusp height difference?

Answer 21

Mand 1st premolar

Question 22

Which tooth has the narrowest attached gingiva?

Answer 22

Mand premolars

Question 23

Which posterior tooth is the smallest facial lingually?

Answer 23

Mand 1st premolar

Question 24

Which tooth has the closest dimensions faciolingually and mesiodistally?

Answer 24

Mand 1st premolar

Question 25

The occlusal crown outline of the mand 2nd premolar is what shape? What shape is the occlusal table?

Answer 25

Pentagon. | Rectangle.

Question 26

Which premolar is most likely to have a crescent shaped central developmental groove?

Answer 26

Mand 2nd premolar

Question 27

What different cusps are on a mandibular premolar Y type ??

Answer 27

One facial cusp | 2 lingual cusps

Question 28

Which tooth has the same number of occlusal pits as the Y type mandibular 2nd premolar? How many pits?

Answer 28

Max 1st molar | 3 pits

Question 29

Which premolar is the only premolar with multiple lingual cusps?

Answer 29

Mand 2nd premolar

Question 30

Which premolar is the only premolar with a lingual groove?

Answer 30

Mand 2nd premolar

Question 31

Which premolar is the only premolar with a central fossa?

Answer 31

Mand 2nd premolar

Question 32

Which premolar most frequently has a single central pit?

Answer 32

mand 2nd premolar

Question 33

Which tooth is the most congenitally missing premolar?

Answer 33

Mand 2nd premolar

Question 34

Which nonmolar tooth has the sharpest demarcation between pulp chamber and canal?

Answer 34

Max. 1st premolar

Question 35

Which premolar is most likely to have bifurcated roots?

Answer 35

Max. 1st premolar

Question 36

Which premolar has fossa that are closest in size to any other posterior tooth?

Answer 36

Max 2nd premolar

Question 37

Which premolar has a separate mesial and distal pit that aren't connected by a groove?

Answer 37

Mand 1st premolar

Question 38

Where is the shortest interdental papilla located between?

Answer 38

Mand 2nd premolar and 1st Molar

Question 39

Where do the maxillary lingual cusps of Premolars occlude in?

Answer 39

The distal fossa of the opposite Premolar (1st premolar to 1st premolar fossa)