Question 4 (part 2) · LDEK · Other

Two-digit teeth numbering system, in which the first digit determines the quadrant and the second is the tooth number, is called:

  1. A. Zsigmondy’s.
  2. B. Palmer’s.
  3. C. Viohl’s.
  4. D. Parreidt’s.
  5. E. Haderup’s.
Hint

This is the two-digit notation adopted by the FDI and WHO; recall the name of the author who proposed it.

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