In the intercuspal position, the lingual cusp of maxillary 2nd premolar contacts the______________?
Correct answer: A. Distal fossa of mandibular 2ndpremolar
- A. Distal fossa of mandibular 2ndpremolar
- B. Mesial fossa of mandibular 1st molar
- C. Distal marginal ridge of mandibular 2ndmolar
- D. Distal marginal ridge of mandibular 1st premolar
Explanation
The lingual cusp of the maxillary second premolar is a supporting cusp and seats in the distal fossa of the mandibular second premolar. Supporting cusps generally contact opposing fossae or marginal-ridge areas rather than buccal surfaces.
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