An upper deciduous canine usually has how many roots and cusps?

• A. One root, cusps n/a
• B. Two roots, five cusps
• C. Three roots, four cusps
• D. Two roots, cusps n/a

Answer: (A)

The feature being tested is the root and cusp characteristics of a deciduous maxillary canine. In the primary dentition, canines generally have a single root, and the number of cusps for deciduous canines isn’t a standard detail used in exams. So the correct description is that there is one root, with cusp count not applicable. The other options imply multiple roots or a specific cusp count that doesn’t occur for a deciduous canine.