The FDI World Dental Federation notation is widely used by dentists internationally to associate information to a specific tooth. Developed by the Fédération Dentaire Internationale (FDI), it is also known as ISO-3950 notation. The FDI system uses a two-digit numbering system in which the first number represents a tooth’s quadrant and the second number represents [...]
The mouth is separated into quadrants, and numbers 1 to 8 and a special symbol are used to differentiate the teeth in each quadrant. Numbering then starts from the center of the mouth to the back and the numbers are placed inside an L-shaped symbol which identifies each individual quadrant.
Numbering starts at the tooth farthest back on the right side of the mouth in the upper (maxillary) jaw and proceeds along the upper teeth toward the front, across to the tooth farthest back on the top left side, down to the lower (mandibular) jaw and to the tooth farthest back on the left side [...]
The adult has a set of 32 permanent teeth. At age 6, eruption of permanent teeth begins and all primary teeth will start to loosen and come out until age 12. 28 out of the 32 permanent teeth will be seen at 13 while the 4 last permanent teeth, which are called wisdom teeth, will [...]
The Palmer Notation Method for Children assigns uppercase letters, instead of numbers, for the child’s 20 primary teeth. Using the same order of numbering adult’s teeth, letters “A” to “E” mark the 20 primary teeth in each quadrant. Also, the same symbol is applied to distinguish the quadrants from each other.