300 Dental Anat Facts Max 2nd-md 2nd Premolars

Question 1

Which tooth has cusps that are almost identical to the 1st maxillary premolar?

Answer 1

mx 2nd premolar

Question 2

Does the 2nd max premolar has 2 cusps that are of equal or unequal height?

Answer 2

equal.

Question 3

what POSTERIOR tooth is most symmetrical?

Answer 3

max 2nd premolar

*Mand centrals are the most symmetrical overall

Question 4

which tooth has a short central groove, and lots of supplemental groves making it appear “wrinkly”?

Answer 4

max 2nd premolar

Question 5

Which tooth has 2 fossa that are closest in size compared to other posterior teeth?

Answer 5

max 2nd premolar

Question 6

which tooth has a prominent triangular ridge, eliminating a a central groove?

Answer 6

Md 1st premolar

*look like snake eyes

Question 7

the mesio-lingual developmental groove on the mandibular 1st premolar originates from where?

Answer 7

occlusal pit and extends into the proximal surface

• *groove enables you to tell which side is mesial/distal when viewed occlusally
• only tooth that has this groove

Question 8

Because of the mesio-lingual groove on the md 1st premolar, what angle does the mesial marginal ridge make?

Answer 8

45 degrees

Question 9

what shape does the md 1st premolar make from the occlusal view?

Answer 9

diamond

Question 10

if the md 1st premolar has a second canal, where is it likely to be located?

Answer 10

lingual

Question 11

how many pulp horns does the md 1st premolar have?

Answer 11

one

Question 12

The lingual cusp of the md 1st premolars is how many thirds the size of the the facial cusp?

Answer 12

2/3 of the crown height of the buccal cusp

Question 13

which tooth has a lingual cusp that is similar in development to a canine?

Answer 13

md 1st premolar

Question 14

Does the lingual cusp of md 1st premolar normally occlude?

Answer 14

no

Question 15

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

Answer 15

md 1st premolar

Question 16

which tooth has the narrowest attached gingiva (masticatory mucosa) on the facial?

Answer 16

md 1st premolar

Question 17

What POSTERIOR tooth is the smallest facio-lingually?

Answer 17

md 1st premolar

Question 18

Which tooth is closest of all mandibular teeth F-L and M-D

Answer 18

md 1st premolar

Question 19

what shape is the coronal outline of the mandibular 2nd premolar?

Answer 19

pentagonal

*different from occlusal table

Question 20

what shape is the occlusal table of the mandibular 2nd premolar?

Answer 20

rectangular

*Different coronal outline

Question 21

which tooth is most likely to have a crescent or C shapped central groove?

Answer 21

md 2nd premolar

Question 22

where is the shortest interdental papilla located?

Answer 22

between mandibular 2nd premolar and 1st molar

Question 23

In a Y shaped md premolar, where are the cusps?

Answer 23

1 facial, 2 lingual

Question 24

how many occlusal pits does a Y shaped md 2nd premolar have?

Answer 24

3

*same as mx 1st molar

Question 25

what premolar is the only one to have 2 lingual cusps?

Answer 25

md 2nd premolar

Question 26

which premolar has a lingual groove?

Answer 26

md 2nd premolar

*part of the Y

Question 27

which premolar has a central fossa?

Answer 27

md 2nd premolar

Question 28

what is the most congenitally missing premolar?

Answer 28

md 2nd premolar