Maxillary 1st Molar

Question 1

Protocone

Answer 1

ML cusp on maxillary molar

Question 2

Protoconoid

Answer 2

MB cusp on Mandibular molar

Question 3

Trigon

Answer 3

ML, MB, and DB cusps on max. molar

Question 4

Trigonoid

Answer 4

MD, MB and mesial marginal ridge of mandibular molar

Question 5

Talon

Answer 5

DL cusp on max. molar

Question 6

Talonoid

Answer 6

DB, DL, and distal cusp of mandibular molar

Question 7

Eruption time for maxillary 1st molar

Answer 7

6-7 years

Question 8

Eruption time for Maxillary 2nd molar

Answer 8

12-13

Question 9

Function of Maxillary molars (2)

Answer 9

• Mastication

- Maintain vertical dimensions of face

Question 10

T/F: Maxillary molars are succedaneous but mandibular molars are not

Answer 10

F: Both are NOT succedaneous

Question 11

What is the least variable tooth in the mouth

Answer 11

Maxillary 1st molar

Question 12

Rank the roots on a maxillary molar by size in order of smallest to largest

Answer 12

DB-MB-L

Question 13

Shape of the crown on a maxillary 1st molar from the buccal view

Answer 13

trapezoidal

Question 14

What structure on the maxillary 1st molar is in line with the lingual root

Answer 14

buccal groove

Question 15

T/F: the maxillary 1st molar doesn’t have a lingual grove

Answer 15

F

Question 16

Buccal HOC for maxillary 1st molar

Answer 16

Cervical third

Question 17

Lingual HOC for maxillary 1st molar

Answer 17

Cervical third

Question 18

Crown shape for maxillary 1st molar on lingual

Answer 18

Trapezoidal

Question 19

Cusp of carabelli is located on which cusp

Answer 19

ML

Question 20

T/F The lingual MD dimensions are greater than the buccal MD dimensions for the maxillary 1st molar

Answer 20

T

Question 21

Is the lingual (or palatale) root on the maxillary 1st molar wider MD of FL

Answer 21

MD unique to this root

Question 22

What is the shape of the crown for the maxillary 1st molar at the mesial and distal views

Answer 22

Trapezoidal

Question 23

Mesial contact for maxillary 1st molar

Answer 23

Junction of middle and occlusal thirds (offset to facial)

Question 24

Distal contact for maxillary 1st molar

Answer 24

(wide with 2nd molar) middle third

Question 25

Which root is wider for the maxillary 1st molar MD or MB

Answer 25

MB

Question 26

Rank the cusp sizes for maxillary 1st molar in order of smallest to largest

Answer 26

DL-DB-MB-ML

Question 27

T/F: Each cusp on the maxillary 1st molar has at least one triangular ridge

Answer 27

T

Question 28

What forms the oblique ridge for the maxillary 1st molar

Answer 28

ML and DB (come together and meet)

Question 29

How many triangular ridges does the ML cusp typically have

Answer 29

2 (one forming oblique ridge and one mesial to that)

Question 30

Shape if occlusal table for maxillary 1st molar

Answer 30

Rhomboid/parallelogram

Question 31

How many fossa do the maxillary 1st molar have, list their names,

Answer 31

4- central fossa, distal fossa, mesial triangular fossa, and distal triangular fossa

Question 32

What fossa is missing in the 3 cusp maxillary 1st molar

Answer 32

distal triangular fossa

Question 33

Make sure you know where each fossa is on the tooth

Answer 33

ok (S35)

Question 34

How many grooves does the maxillary 1st molar have? Names?

Answer 34

4 or 5- central, buccal, lingual, oblique, and distal

Question 35

Know where each groove is on the tooth

Answer 35

ok (S37)

Question 36

T/F: The maxillary 1st molar contains a mesial concavity

Answer 36

F: has a distal concavity