Question 278 (part 2) · LDEK · Impressions and impression materials
During taking an impression with PE impression material, it is necessary to remember:
1) cords soaked with iron sulfate should not be used for retraction;
2) using individual trays;
3) possibility of allergic reactions;
4) rigidity of the material, which impairs the release of impression from oral cavity;
5) storing the impressions in water vapor.
Correct answer is:
2) using individual trays;
3) possibility of allergic reactions;
4) rigidity of the material, which impairs the release of impression from oral cavity;
5) storing the impressions in water vapor.
Correct answer is:
- A. only 5.
- B. 1,2,3,4.
- C. 1,2,3.
- D. 1,5.
- E. 4,5.
Hint
Polyether is stiff, hydrophilic and absorbs water; its initiator can sensitise, and some haemostatic agents interfere with its set.
The answer, the explanation and a note on every option are available once you log in. The account is free: topic tests, a mock exam, mistake review and statistics.
More questions on Prosthodontics
- Active substances in hemostatic products used for retraction include:
- Indicate true statements regarding the zircon oxide (IV):
- Indicate true statements regarding preparation of restorations made out of zircon oxide:
- Crowns uniformly ceramic are fabricated with the use of various technologies. Indicate a method, which is not used:
- Indicate true statements regarding initially baked prefabricates of leucite ceramics, lithium disilicate or zircon, in the form of ingots processed…
- Indicate trues statements regarding the percussion test: