The original system numbers the child’s 20 primary teeth in the same order and places a small letter “d” after each number to show deciduous (primary) teeth. The modified version of the Universal Numbering System for children which is now used by most dentists and insurance companies, however, uses the letters A to T instead [...]
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.
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 [...]
Typically, the middle front tooth on the lower jaw (central incisor) is the first tooth to erupt and is followed by the second central incisor on the lower jaw. The 4 upper incisors appear next, then the first 4 molars and the bottom two lateral incisors. The cuspids (pointed teeth) follow and, lastly, the 4 [...]
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