The Palmer notation system is also known as the Zsigmondy system. Teeth numbering systems: ISO-3950, Palmer, and Universal Tooth Numbering Systems.
In palmer system of tooth numbering, the mouth is divided into four quadrants. Each quadrant is numbered from 1 to 8. The numbers start from 1 for central incisor to 8 for the third molar. To identify the left and right teeth the brackets are introduced in it. The brackets are put like this (┘└ ┐┌)
Palmer changed this to A, B, C, D, E, which made it less confusing and less prone to errors in interpretation. The Palmer notation consists of a symbol (⏌⎿ ⏋⎾) designating in which quadrant the tooth is found and a number indicating the position from the midline.
Those using the Microsoft Windows XP operating system, however, can create their own Palmer notation characters with a little-known function called Private Character Editor (PCE) which is already included with the software. A description of the procedure is given in the appendix.