Dent 1100: Section 2 Review Questions Flashcards
1
Q
What is the best way to remove a maxillary impression from a plaster cast?
A
By lifting the posterior end and removing the impression in an anterior direction
2
Q
What is the minimum time plaster cast should set prior to separation from the impression?
A
45 minutes
3
Q
What is the consistency of a plaster mix for pouring a preliminary cast?
A
Plaster is mixed to a thick consistency, such that it will not flow unless vibrated
4
Q
What is the recommended width of the land area around a trimmed preliminary cast?
A
3 millimeter
5
Q
What dental materials are commonly used in making a preliminary impression for complete dentures?
A
Usually made of alginate or impression compound
