In which of the following a nonfunctional cusp is present________________?
Correct answer: B. Maxillary 1st molar
- A. Maxillary 2ndmolar
- B. Maxillary 1st molar
- C. Mandibular 1st molar
- D. Mandibular 2nd molar
Explanation
The maxillary first molar may have a fifth, nonfunctional cusp called the cusp of Carabelli on the palatal side of the mesiopalatal cusp. The other listed molars do not characteristically have this accessory cusp.
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