To which tooth number does the acrylic restoration pertain?

To which tooth number does the acrylic restoration pertain?

• A. Tooth 4
• B. Tooth 2
• C. Tooth 6
• D. Tooth 8

Answer: (A)

In this kind of question you map the visible restoration to a tooth by its position in the mouth. Using the universal numbering system, you start at the midline and work across the upper arch: central incisor, lateral incisor, canine, first premolar, second premolar, first molar, second molar, third molar. The acrylic restoration shown is in the position of the second premolar on the upper right. So the restoration pertains to the upper right second premolar. (Other numbering schemes would label the same tooth differently, but the location remains the same.)

In this kind of question you map the visible restoration to a tooth by its position in the mouth. Using the universal numbering system, you start at the midline and work across the upper arch: central incisor, lateral incisor, canine, first premolar, second premolar, first molar, second molar, third molar. The acrylic restoration shown is in the position of the second premolar on the upper right. So the restoration pertains to the upper right second premolar. (Other numbering schemes would label the same tooth differently, but the location remains the same.)