Alphanumeric system of dental notation

The alphanumeric system of dental notation is a modification of Palmer notation for numbering and naming teeth made for electronic transcription. Its use is primarily in the United Kingdom .

Permanent teeth

First, the jaws are divided into four quadrants . Each quadrant is denoted by their English initialism for upper (U) or lower (L) jaw and the patient's right (R) or left (L) side:

• right upper (maxillary) quadrant = UR
• left upper (maxillary) quadrant = UL
• left lower (mandibular) quadrant = LL
• right lower (mandibular) quadrant = LR

As in the Palmer notation and FDI World Dental Federation notation systems, individual teeth within each quadrant of the dental arches are then numbered from mesial to distal:

• central incisor = 1
• lateral incisor = 2
• canine/cuspid = 3
• 1 premolar/bicuspid = 4
• 2 premolar/bicuspid = 5
• 1molar = 6
• 2 molar = 7
• 3 molar = 8

The quadrant designation is the prefix, followed by the individual tooth number. Therefore, the notation UR1 indicates the permanent right upper central incisor.

Primary teeth

As in the Palmer notation, the deciduous teeth are lettered A through E from mesial to distal in each quadrant :

• central incisor = A
• lateral incisor = B
• canine = C
• 1molar = D
• 2 molar = E

The prefix for each quadrant is as in the permanent teeth.

Therefore, the notation LRB indicates the primary right lower lateral incisor.

See also

• Fédération Dentaire Internationale (FDI) notation
• American Dental Association (ADA) Universal Numbering System
• Palmer notation

Siehe auch:

• Palmer notation
• Zahnschema