Tooth anatomy number chart

  • How do you read a tooth number chart?

    Tooth number 1 is the one at the back.
    The one beside it toward the front of your mouth is 2, and the numbering continues along the upper teeth until you get to the other end.
    So, tooth number 16 is the farthest back on the top left.
    Then, drop to the lower left, and the tooth essentially under 16 is 17..

  • Which tooth numbering system?

    Despite its name, the Universal Numbering System is commonly used only in the United States.
    It is also called the "American system".
    The uppercase letters A through T are used for primary teeth and the numbers 1 – 32 are used for permanent teeth..

  • The upper teeth are numbered from 1-16 from right to left and the lower teeth are numbered 17-32 from left to right.
    Therefore, 1,16,17 and 32 would refer to your wisdom teeth and 6-11 and 22-26 would be your anterior teeth in the upper and lower jaws respectively.
    Similarly, 6,11 22, 27 would be the canines and so on.
The top teeth, numbered 1-16, are known as the maxillary arch. The top teeth numbering starts on your right-hand side – so your rear right wisdom tooth, or 3rd molar, would be your number one tooth. The bottom teeth, 17-32, are known as the mandibular arch.

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