DentoD
FeaturesSolutionsPricingBlogHelpContact
Comparevs OpenDentalvs Dentrixvs Curve DentalSee All
Instant Demo AccessBook a meeting
← Tooth numbering chart
Universal 28FDI 44Palmer LR4

Lower right first premolar

The lower right first premolar sits in the lower right (q4), in the mandibular (lower) arch. It is Universal number 28, FDI/ISO 44, and LR4 in Palmer notation.

Where it sits

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17

At a glance

Universal number
28
FDI / ISO number
44
Palmer notation
LR4
Quadrant
Lower right (Q4)
Arch
Mandibular (lower)
Side
Right
Tooth type
Premolar
Typical roots
1
Typical canals
Single

Also known as

  • Mandibular right first premolar
  • Lower right first bicuspid

Surfaces

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

Common procedures

  • ✓Composite filling
  • ✓Crown
  • ✓Root canal treatment
  • ✓Extraction

Adjacent teeth

Previous · Universal 27 · FDI 43Lower right canineNext · Universal 29 · FDI 45Lower right second premolar

Keep exploring