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Universal 30FDI 46Palmer LR6

Lower right first molar

The lower right first molar sits in the lower right (q4), in the mandibular (lower) arch. It is Universal number 30, FDI/ISO 46, and LR6 in Palmer notation.

Where it sits

1
2
3
4
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7
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9
10
11
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32
31
30
29
28
27
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21
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17

At a glance

Universal number
30
FDI / ISO number
46
Palmer notation
LR6
Quadrant
Lower right (Q4)
Arch
Mandibular (lower)
Side
Right
Tooth type
Molar
Typical roots
2
Typical canals
MB, ML, D

Also known as

  • Mandibular right first molar
  • Six-year molar

Surfaces

  • Mesial
  • Distal
  • Buccal (facial)
  • Lingual
  • Occlusal

Common procedures

  • ✓Composite or amalgam filling
  • ✓Crown
  • ✓Root canal (endodontic) treatment
  • ✓Onlay
  • ✓Extraction

Adjacent teeth

Previous · Universal 29 · FDI 45Lower right second premolarNext · Universal 31 · FDI 47Lower right second molar

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