Dental Notation Systems PDF

# Notation Systems - These are systems used to identify the type of each tooth and its location in each quadrant of the dental arches. - They are used to identify and refer to a specific tooth and as a quick shortcut in clerical records. ## Palmer Notation System - Used in Egypt. - Teeth are arra...

# Notation Systems - These are systems used to identify the type of each tooth and its location in each quadrant of the dental arches. - They are used to identify and refer to a specific tooth and as a quick shortcut in clerical records. ## Palmer Notation System - Used in Egypt. - Teeth are arranged in 2 crossed lines representing the 4 quadrants. ### Permanent Teeth - Are given numbers starting from 1 (the central incisor) and ending by 8 (the third molar). ### Primary (Deciduous) Teeth - Are given letters starting from A (the central incisor) and ending by E (the second molar). ## FDI Notation System (World dental federation system) (Two digits system) - A two-digit system proposed by Federation Dentaire Internationale (FDI). It is the system of choice worldwide and adopted by the World Health Organization (WHO) and accepted by many dental organizations. - In this system, each tooth is given a number of 2 digits. - The first number is the quadrant number given in a clockwise direction starting from the right maxillary quadrant. - The second number indicates the number of the tooth within any quadrant. - The first digit indicates the quadrant (1 to 4) for the permanent dentition and for the primary detention (5 to 8). - The second digit indicates the tooth within a quadrant: 1 to 8 for the permanent teeth and 1 to 5 for the primary teeth. - Thus, the permanent upper right central incisor is 11 (pronounced "one-one", not "eleven"). A dot could be inserted between both numbers (1.1). | | Upper Right | Upper Left | |----|-------------|------------| | 18 | 13 | 21 | | 17 | 12 | 22 | | 16 | 11 | 23 | | 15 | 43 | 31 | | 14 | 42 | 32 | | 48 | 41 | 33 | | 47 | 31 | 34 | | 46 | 32 | 35 | | 45 | 33 | 36 | | 44 | 34 | 37 | | | Lower Right | Lower Left | | | Upper Right | Upper Left | |----|-------------|------------| | 55 | 52 | 61 | | 54 | 51 | 62 | | 53 | 61 | 63 | | 85 | 82 | 71 | | 84 | 81 | 72 | | 83 | 71 | 73 | | | Lower Right | Lower Left | ## Universal Notation System - A specific number is given for each permanent tooth and a letter for each deciduous tooth. - The first number (1) is given to the right maxillary permanent third molar and the first letter (A) to the deciduous maxillary right second molar. - The permanent teeth are numbered 1 through 32 starting by 1 at the right third molar. - The deciduous teeth are designated with the capital letters A through T starting by A for the deciduous maxillary second molar. - The sequence of numbers or letters in this system goes in a clockwise direction through the 4 quadrants. - The number or letter used in this system is always preceded by the sign # to indicate that the system used is universal system. | | | | |--------|------------ |---------------------| | Permanent | 1 2 3 4 5 6 7 8| 9 10 11 12 13 14 15 16 | | R | | | | | 32 31 30 29 28 27 26 25| 24 23 22 21 20 19 18 17 | | | | | | | | | | Deciduous | ABCDE | FGHIJ | | | TSRQP | ONMLK | | R | | L |