Question 12 (part 2) · LDEK · Cavity preparation
Which dentin layers and of which cavity walls should be removed in case of selective cavity preparation up to firm dentin:
1) firm from side walls;
2) firm from intrachamber wall;
3) soft from side walls;
4) soft from intrachamber wall;
5) hard from side walls.
Correct answer is:
2) firm from intrachamber wall;
3) soft from side walls;
4) soft from intrachamber wall;
5) hard from side walls.
Correct answer is:
- A. 1,2,4.
- B. 3,4,5.
- C. 1,3,4.
- D. 2,3.
- E. 3,4.
Hint
In selective removal, the peripheral walls and the pulpal wall are prepared to different end-points of dentin hardness.
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