Protective crests of contour on buccal and lingual surfaces are found______________?
Correct answer: A. Both A and C
- A. Both A and C
- B. Nearest the occlusal third of the lingual
- C. In the cervical third of the buccal
- D. In the middle third of the lingual
Explanation
Normal protective contours occur in the cervical third on buccal surfaces and around the middle third on lingual surfaces. These bulges help deflect food away from the gingiva, so both statements A and C are correct.
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