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Dental Anatomy > Mandibular 1st Molars > Flashcards

Mandibular 1st Molars Flashcards

1
Q

What is the eruption time for the mandibular 1st molar

A

6-7 yrs

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2
Q

Size of the molars (increases/decreases) from 1st to 3rd molar

A

Decreases

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3
Q

Which root is smaller on the mandibular 1st molar

A

distal

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4
Q

The mesial root for the mandibular 1st molar has… pulp canal(s)

A

2

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5
Q

What is the shape of the mandibular 1st molar crown from the buccal view

A

Trapezoidal

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6
Q

What are the names of the 3 grooves for the mandibular 1st molar that divide the crown into 3 sections

A
  • buccal
  • distobuccal
  • lingual
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7
Q

Buccal HOC for mandibular 1st molar

A

Cervical third

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8
Q

Crown shape of mandibular 1st molar from the lingual view

A

trapezoidal

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9
Q

Which cusp on the mandibular 1st molar is the tallest

A

ML

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10
Q

Which cusp on the mandibular 1st molar is the bulkiest

A

MB

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11
Q

Rank the cusps on mandibular 1st molar in order of largest to smallest

A

MB-ML-DL-DB-D

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12
Q

Lingual HOC for mandibular 1st molar

A

Middle and occlusal 3rd

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13
Q

Crown shape of mandibular 1st molar from mesial and distal views

A

rhomboid

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14
Q

mandibular 1st molar crown inclines (Buccally/lingually/distally/mesially)

A

lingually

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15
Q

…Is centered over the root of the mandibular 1st molar

A

buccal cusps

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16
Q

The CEJ on the mandibular 1st molar is more (cervical/occlusal) on the buccal verses the lingual

A

cervical

17
Q

Mesial contact for the mandibular 1st molar

A

Junction of middle and occlusal thirds

18
Q

Distal contact for mandibular 1st molar

A

Middle third

19
Q

Distal marginal… is present on the distal marginal ridge of the mandibular 1st molar

A

groove

20
Q

The (mesial/distal) portion is larger when looking at the mandibular 1st molar from the occlusal view

A

mesial

21
Q

What is the occlusal table bounded by in the mandibular 1st molar

A

Mesial and distal marginal ridges and the 5 cusp ridges

22
Q

T/F: There are no transverse ridges in the mandibular 1st molar

A

t

23
Q

Shape of the occlusal table for the mandibular 1st molar is

A

pentagon

24
Q

Name of the groove pattern for the mandibular 1st molar

A

Y5 (MD) and anthropological Y5 (BL)– look at S24 and S24 is confused

25
Q

How many fossa does the mandibular 1st molar have? Names

A

3- Cental, mesial triangular, and distal triangular

26
Q

Rank the fossa of the mandibular 1st molar in order from deepest and largest to most shallow and smallest

A

Central fossa-mesial triangular fossa- distal triangular fossa

27
Q

How many pits does the mandibular 1st molar have? names?

A

3- central, mesial, and distal– each located within their respective fossa and again the central is the deepest and distal is most shallow

Dental Anatomy (10 decks)

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