Tooth 48 (FDI): mandibular right third molar

Quick answer

  • Tooth 48 in FDI is Universal 32 and Palmer LR8: the mandibular right third molar.

The three numbers

Mandibular right third molar in each system
SystemNumber
FDI48
Universal32
PalmerLR8

About this tooth

Name
Mandibular right third molar
Set
Adult (permanent)
Position
Lower arch, patient right (lower right, quadrant 4)
Erupts
17 to 21 years
Roots
2
Root canals
3 or more
Crown surfaces
Mesial, distal, buccal, lingual and occlusal.
Also written
#32 (Universal), 4.8 (FDI with a dot), lower right 8, wisdom tooth

Read on 23 October 2026. Sources: American Dental Association, Tooth development charts (primary and permanent); Number of roots and canals, from Ingle's Endodontics; Dental anatomy, citing Ash and Nelson, Wheeler's Dental Anatomy, Physiology and Occlusion. Ages and counts are usual figures, and teeth vary from person to person.

On the chart

Tooth 48 marked on the chart, with its side view.

Teeth next to it

Convert any other tooth with the full chart.

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