Multiple Choice
Why do impression trays have perforations?
A) Provides for easier clean-up after pouring.
B) Provide adequate air circulation for proper setting times.
C) Allow material to push through the holes, creating a mechanical lock that keeps the material in place.
D) All of the above are correct
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q1: Flexible rubber bowls are used to mix
Q2: How should an impression be cared for
Q4: The automixer is used for which type
Q5: What is the purpose of a vacuum
Q6: The use of a water-cooled tray describes
Q7: Which of the following materials would NOT
Q8: Which dental instrument is used to mix
Q9: Bite registration trays come in a selection
Q10: When would one use a triple tray
Q11: Which of the following statements is incorrect