Dental Numbering Systems

 1- Universal Numbering System:

((Primary Teeth))

---Beginning with the upper right "E" designated by letter A -----> J
---Beginning with the left lower "E" molar designated by letter K---->T

((Permenant Teeth))

---Starting with upper right third molar, starts with number 16 -----> 1 , since (1) resembles upper left third molar.
---Starting with lower left third molar Teeth are numbered 17 ----> till 32

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2- Palmer Natation System:

((Primary teeth))-Now used-
---For each quadrant, number teeth as (A, B, C, D, E)

((Permenant teeth))
---For each quadrant, Number teeth as (1, 2, 3, 4, 5, 6, 7, 8)

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3- Federation International "Two digit system" (FDI)

In this system ...
-1st digit indicates quadrant, where (1--->4) refers to permenant jaws, While (5--->8) refers to primary jaws.

-2nd digit refers to the tooth number from (1--->8) in permenant teeth, and (1--->5) in primary teeth.

So as for the first digit:
1 ----> Refers to upper right quadrant
2 ----> upper left quadrant
3 ----> lower left quadrant
4 ----> lower right quadrant
5 ----> upper right quadrant(In Primary teeth)
6 ----> upper left quadrant(Primary)
7 ----> lower left quadrant(primary)
8 ----> lower right quadrant(primary)

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Authored By

::World Of Dentistry:: TEAM