DentoD
FeaturesSolutionsPricingBlogHelpContact
Comparevs OpenDentalvs Dentrixvs Curve DentalSee All
Instant Demo AccessBook a meeting
← Tooth numbering chart
Universal 9FDI 21Palmer UL1

Upper left central incisor

The upper left central incisor sits in the upper left (q2), in the maxillary (upper) arch. It is Universal number 9, FDI/ISO 21, and UL1 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
9
FDI / ISO number
21
Palmer notation
UL1
Quadrant
Upper left (Q2)
Arch
Maxillary (upper)
Side
Left
Tooth type
Incisor
Typical roots
1
Typical canals
Single

Also known as

  • Maxillary left central incisor

Surfaces

  • Mesial
  • Distal
  • Labial (facial)
  • Lingual
  • Incisal

Common procedures

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

Adjacent teeth

Previous · Universal 8 · FDI 11Upper right central incisorNext · Universal 10 · FDI 22Upper left lateral incisor

Keep exploring