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Universal 12FDI 24Palmer UL4

Upper left first premolar

The upper left first premolar sits in the upper left (q2), in the maxillary (upper) arch. It is Universal number 12, FDI/ISO 24, and UL4 in Palmer notation.

At a glance

Universal number
12
FDI / ISO number
24
Palmer notation
UL4
Quadrant
Upper left (Q2)
Arch
Maxillary (upper)
Side
Left
Tooth type
Premolar
Typical roots
2
Typical canals
B, P

Also known as

  • Maxillary left first premolar
  • Upper left first bicuspid

Surfaces

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

Common procedures

  • Composite filling
  • Crown
  • Root canal treatment
  • Extraction

Adjacent teeth