Question 293 (part 2) · LDEK · Crowns
Marginal seal of metal crown is of around:
- A. 15-20 µm.
- B. 25-35 µm.
- C. 25-50 µm.
- D. 50-100 µm.
- E. 100-200 µm.
Hint
A precisely cast metal crown fits about as closely as the film thickness of a well-mixed luting cement.
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