300 Dental Anatomy: Mandibular Molars

Question 1

The groove pattern for MD 1st molar is what shape?

Answer 1

Y or W or Dryopethicus pattern

Question 2

The occlusal outline of a MD 1st molar is what shape?

Answer 2

Pentagon

Question 3

The smallest cusp of the MD 1st molar:

Answer 3

distal

Question 4

The largest cusp of the MD 1st molar:

Answer 4

MF

Question 5

What is the rank from largest to smallest cusp on the MD 1st molar?

Answer 5

MB>ML>DLD

*remember for MX 1M the largest is the ML!

Question 6

Which tooth has the LARGEST M-D crown dimension of ANY other tooth?

Answer 6

MD 1M

Question 7

The only MANDIBULAR teeth that are wider MD than FL

Answer 7

Mandibular molars

Question 8

The only POSTERIOR teeth that are wider MD than FL?

Answer 8

Mandibular molars

Question 9

The greatest FL crown dimension of ALL teeth:

Answer 9

MX 1M

*think bc of cusp of carabelli

Question 10

The largest occlusal-cervical crown dimension of any mandibular molar?

Answer 10

MD 1M

Question 11

In relation to the ascending ramus, the facial surfaces of mandibular molars are located:

Answer 11

medial to the border of the ascending ramus

Question 12

A key feature that differentiates a mandibular 1st molar and a 2nd molar is:

Answer 12

The number of developmental grooves

Question 13

Mandibular 1st molar has _ developmental grooves

Mandibular 2nd molar has _ developmental groove

Answer 13

MD 1M = 2

MD 2M = 1

Question 14

How many facial cusps does a mandibular 1st molar have?

Answer 14

3

Question 15

The developmental groove between the DF cusp and the Distal cusp of the mandibular first molar is called:

Answer 15

DF developmental groove

Question 16

How many roots and canals does the mandibular 1st molar have?

Answer 16

2 roots and 3 canals

Question 17

How many mesial canals does the mandibular 1st molar have?

Answer 17

2

Question 18

The tooth with the longest root OVERALL?

Answer 18

MX Canine

Question 19

The tooth with the longest root of any other MOLAR?

Answer 19

MD 1M

Question 20

The greatest root separation of any other tooth:

Answer 20

MD 1M

Question 21

At the mid root cross section of the mandibular first molar, the largest root is the:

Answer 21

Mesial

Question 22

Which root of the mandibular 1st molar has the greatest FL dimension?

Answer 22

Mesial

Question 23

The distobuccal cusp of the mandibular molars occludes with:

Answer 23

Central fossa of MX molars

Question 24

The ideal position and height of ________ cusps of mandibular 1st molar will accommodate what type of movement?

Answer 24

lingual

Working movement

Question 25

The groove pattern for the mandibular 2nd molar:

Answer 25

Cross pattern

Question 26

From the occlusal view, the greatest FL diameter of the mandibular second molar is in the:

Answer 26

mesial 1/3 | *mesial side is thicker than the distal side

Question 27

The crown of the mandibular 2nd molar inclines:

Answer 27

Mesial and Lingual | *think of larger M cusp weighing it down toward back

Question 28

Mandibular molars have long axis of their root apices ____.

Answer 28

Apices = facial

Question 29

Mandibular molars have long axis of their crowns ____

Answer 29

Crowns = lingual

Question 30

Mandibular 1M: __ cusps | Mandibular 2M: __ cusps

Answer 30

MD 1M = 5 | MD 2M = 4

Question 31

Greatest distal root inclination of any other root of any tooth:

Answer 31

MD 3rd molars