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Dental anatomy notation

Dental anatomy notation

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This article is a publication on oral health issued by the Ordre des dentistes du Québec.

Dental anatomy and function

Ref. and  ©  Ordre des dentistes du Québec

Extreme tooth enlargement, up to the atomic level!

Although enamel is known as the hardest tissue of the human body and, despite the fact that it appears smooth and not porous, an evaluation with an electronic microscope gives us a whole different perception of this tissue. This exceptional video shows how enamel, composed of minuscule elements called prisms, has in fact a very irregular surface when it is enlarged thousands and millions of times. Special cells only produce enamel once when teeth are formed; enamel cannot be replaced once it becomes worn or damaged.

Watch this video to learn more… images speak by themselves!


To learn more on normal dental eruption and associated anomalies.


Dental notation – tooth numbering

To speak the same language in communications between dentists and dental staff, we use a system that allows us to precisely identify each tooth by a number. This prevents any confusion and minimizes the chances of making a mistake in written or oral communications.


Fédération Dentaire Internationale system

 Odontogram, dental numbering FDI notation orthodontics

Tooth surfaces

Moreover, each tooth has several surfaces:

Universal dental numbering system. Orthodontics and dentistry

Universal dental numbering system (United States)






Dental anatomy diagram

Illustration of the different parts and components of a tooth (lower incisor) and periodontium (alveolar bone and gum tissue).


Original publication 2014-03-14 © www.ortholemay.com

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