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22 Cards in this Set

  • Front
  • Back
Mandibular first molar:

Crown size
Largest - widest mesiodistally
Mandibular first molar:

# cusps
5 - mesiobuccal, distobuccal, mesionlingual, distolingual, distal
Mandibular first molar:

Proximal contacts
Mesial - middle
Distal - middle third
Mandibular first molar:

Groove/pit
1 mesiobuccal +/- pit, 1 distobuccal
Mandibular first molar:

Roots
Widely separated, nearly vertical, very divergent
Mandibular first molar:

# lobes
5
Mandibular first molar:

# pulp horns
5
Mandibular first molar:

Crown length
7.5
Mandibular first molar:

Mesiodistal
11
Mandibular first molar:

Buccolingual
10.5
Mandibular first molar:

Height of contour
B - cervical third
L - middle third
Mandibular first molar:

Root
14
Mandibular first molar:

Age of eruption
6-7
Mandibular first molar:

Root complete
9-10
Mandibular first molar:

# roots
Can have 4
Mandibular first molar:

Characteristic grooves
Prominent central and lingual groove
Mandibular first molar:

Concavity
Mesial concavity. Really strong, thin concavity on distal side
How many cusps can be seen from the buccal surface? Size?
3 - mesiobuccal, distobuccal, distal.

Mesiobuccal > distobuccal > distal
How many grooves are on the buccal surface?
2 - mesiobuccal, distobuccal
Which is wider, buccal or lingual surface?
Buccal
A developmental disturbance in the enamel of the mandibular first molar crowns usually occurs between what ages?
Birth to 3 years postnatal
A mandibular first molar typically presents what developmental grooves?
Mesiobuccal and distobuccal