Question 308 (part 2) · LDEK · Post and core restorations
Standard ceramic post and cores made of zircon oxide are characterized by:
1) lack of radiogram visibility;
2) good esthetics;
3) biocompatibility;
4) low fragility;
5) they require big preparation width;
6) lack of adhesive communication with composite cements;
7) difficulty in removal from the canal post cementation;
8) low cost.
Correct answer is:
2) good esthetics;
3) biocompatibility;
4) low fragility;
5) they require big preparation width;
6) lack of adhesive communication with composite cements;
7) difficulty in removal from the canal post cementation;
8) low cost.
Correct answer is:
- A. 1,2,3,5,6,8.
- B. 1,2,3,4,7.
- C. 2,3,5,6,7.
- D. 3,4,5,6,7.
- E. 1,2,4,5,6,8.
Hint
Recall the radiopacity, stiffness and brittleness, bondability and price of zirconia posts.
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