Primary Tooth Letters
In order to identify a specific primary tooth, each primary tooth is given a letter and a name. This Universal Numbering System allows everyone to be talking about the same tooth. In the primary dentition, letters A - T are present. Letters A - J are in the maxillary arch and letters K - T are in the mandibular arch.
Starting with the last tooth in quadrant 1, we have letter A. As we go forward or towards the midline, we have letters B, C, D and E. Letter F is found at the midline in quadrant 2. We continue lettering until we reach letter J at the end of quadrant 2. Therefore, tooth letters A - J are found in the maxillary arch.
Moving down into the mandibular arch and specifically the back of quadrant 3, we continue with letter K. Moving from the posterior aspect of quadrant 3 towards the midline, have letter O. At the midline, we cross into quadrant 4 and have letter P. Lettering is continued until we end with the last letter in quadrant 4, letter T.
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As you saw is the photo album, lettering of the primary teeth starts with the last tooth in the upper right quadrant (letter A) and continues over to the last tooth in the upper left quadrant (letter J). From here, lettering continues with the last tooth in the lower left quadrant (letter K) and continues until we reach the last tooth in the lower right quadrant (letter T).
If you want to see a video that reviews information on tooth lettering, please click here.
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