Question 221 · LDEK · Impressions and impression materials
Utility waxes:
1) are a group of thermoplastic impression materials;
2) allow for functional border molding of the impression of a fully edentulous arch;
3) can be totally burned leaving no remains;
4) are classified as elastic impression materials;
5) flow at mouth temperature in the range of 36-37°C.
The correct answer is:
2) allow for functional border molding of the impression of a fully edentulous arch;
3) can be totally burned leaving no remains;
4) are classified as elastic impression materials;
5) flow at mouth temperature in the range of 36-37°C.
The correct answer is:
- A. 1,2,4.
- B. 1,3,4.
- C. 1,3,4,5.
- D. only 4.
- E. 1,2,5.
Hint
Classify these waxes by how they become plastic and behave at mouth temperature, and distinguish them from casting waxes.
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