Question

According to the ISO/FDI numbering system, an adult mandibular right first molar would be tooth number:

1) Tooth number 18
2) Tooth number 19
3) Tooth number 20
4) Tooth number 21

Answer 1

According to the ISO/FDI numbering system, the adult mandibular right first molar would be tooth number 20.

Step-by-step explanation:

The adult mandibular right first molar would be tooth number 3) Tooth number 20. According to the ISO/FDI numbering system, the adult dentition consists of 32 permanent teeth. Moving from the center of the mouth towards the side, the first molar is located in the posterior region of the lower jaw on the right side. In the ISO/FDI numbering system, the teeth are numbered from 1 to 32, with the right side of the mouth numbered even and the left side numbered odd.