FDI World Dental Federation notation

For crystallographic notation system, see Hermann–Mauguin notation.

FDI World Dental Federation notation is widely used by dentists internationally to associate information to a specific tooth.[1]

Developed by the FDI World Dental Federation, World Dental Federation notation is also known as ISO 3950[2] notation.

Orientation of the chart is traditionally "dentist's view", i.e. patient's right corresponds to notation chart left. The designations "left" and "right" on the chart below correspond to the patient's left and right.

Table of codes

X-ray of the teeth and jaw showing the normal permanent teeth. The last two teeth on the patient's left (the dentist's right), 28 and 38 - the maxillary and mandibular third molars (popularly the upper and lower wisdom teeth) are severely impacted.
FDI two-digit notation
Permanent teeth
patient's upper right patient's upper left
18171615141312112122232425262728
48474645444342413132333435363738
patient's lower right patient's lower left
Deciduous teeth (baby teeth)
upper right upper left
55545352516162636465
85848382817172737475
lower right lower left

Codes, names, and usual number of roots: (see chart of teeth at Wikipedia entry: Universal Numbering System)

How the codes are constructed

Syntax: <quadrant code><tooth code>

Sometimes a dot is inserted between quadrant code and tooth code in order to avoid ambiguity with other numbering systems.

Quadrant codes
1upper right permanent teeth
2upper left permanent teeth
3lower left permanent teeth
4lower right permanent teeth
5upper right deciduous teeth
6upper left deciduous teeth
7lower left deciduous teeth
8lower right deciduous teeth
Tooth codes
1central incisors
2lateral incisors
3canines
41st premolars (permanent teeth) / 1st molar (deciduous teeth)
52nd premolars (permanent teeth) / 2nd molar (deciduous teeth)
61st molars (permanent teeth)
72nd molars (permanent teeth)
83rd molars (permanent teeth)

Examples:

See also

References

External links

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