Question 96 · LDEK · Impressions and impression materials

Which of the following Herbst’s tests are used to evaluate the landmarks of custom impression tray, both in the mandible and the maxilla?

1) opening mouth wide;
2) licking the upper and lower lip;
3) putting the lips as if whistling;
4) touching the cheek with the tip of the tongue;
5) sticking the tongue out above the upper lip;
6) mimic moves, wide smile.
The correct answer is:
  1. A. 1,3.
  2. B. 1,3,6.
  3. C. 1,5,6.
  4. D. 2,3,5.
  5. E. 2,4,6.
Hint

Look for movements that tense tissues bordering both trays — the pterygomandibular region and the labial frena — rather than tongue-specific ones.

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