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NBDE Review > 300 Dental Anatomy: Mandibular Molars > Flashcards

300 Dental Anatomy: Mandibular Molars Flashcards

1
Q

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

A

Y or W or Dryopethicus pattern

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2
Q

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

A

Pentagon

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3
Q

The smallest cusp of the MD 1st molar:

A

distal

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4
Q

The largest cusp of the MD 1st molar:

A

MF

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5
Q

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

A

MB>ML>DLD

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

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6
Q

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

A

MD 1M

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7
Q

The only MANDIBULAR teeth that are wider MD than FL

A

Mandibular molars

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8
Q

The only POSTERIOR teeth that are wider MD than FL?

A

Mandibular molars

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9
Q

The greatest FL crown dimension of ALL teeth:

A

MX 1M

*think bc of cusp of carabelli

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10
Q

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

A

MD 1M

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11
Q

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

A

medial to the border of the ascending ramus

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12
Q

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

A

The number of developmental grooves

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13
Q

Mandibular 1st molar has _ developmental grooves

Mandibular 2nd molar has _ developmental groove

A

MD 1M = 2

MD 2M = 1

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14
Q

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

A

3

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15
Q

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

A

DF developmental groove

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16
Q

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

A

2 roots and 3 canals

17
Q

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

A

2

18
Q

The tooth with the longest root OVERALL?

A

MX Canine

19
Q

The tooth with the longest root of any other MOLAR?

A

MD 1M

20
Q

The greatest root separation of any other tooth:

A

MD 1M

21
Q

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

A

Mesial

22
Q

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

A

Mesial

23
Q

The distobuccal cusp of the mandibular molars occludes with:

A

Central fossa of MX molars

24
Q

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

A

lingual

Working movement

25
Q

The groove pattern for the mandibular 2nd molar:

A

Cross pattern

26
Q

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

A

mesial 1/3

*mesial side is thicker than the distal side

27
Q

The crown of the mandibular 2nd molar inclines:

A

Mesial and Lingual

*think of larger M cusp weighing it down toward back

28
Q

Mandibular molars have long axis of their root apices ____.

A

Apices = facial

29
Q

Mandibular molars have long axis of their crowns ____

A

Crowns = lingual

30
Q

Mandibular 1M: __ cusps

Mandibular 2M: __ cusps

A

MD 1M = 5

MD 2M = 4

31
Q

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

A

MD 3rd molars

NBDE Review (14 decks)

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