[Standardization of the tooth numbering systems].

When identifying a specific tooth, dentists list the dentition, arch, quadrant and tooth name. There are several systems of naming and coding teeth. It is necessary that the dental team be familiar with all systems so that communication between dental offices is possible. In this article, the most popular systems are reviewed and their advantages, disadvantages are discussed. These systems are Universal, Palmer and FDI. Also, other systems are summarized. The Palmer/Zsigmody notation have been used widely in the world, but caused problems in typing and printing. And also, it is not suitable for computer processing. The FDI two-digit system helps to prevent errors when differentiating between right and left sides of the mouth or between upper and lower dental arches. It also has advantages when typing and is capable of being incorporated in computer languages.