Author Question: Alginate impressions are taken during the crown preparation appointment to ____________. a. ... (Read 87 times)

james · **on:** Jun 25, 2018

Alginate impressions are taken during the crown preparation appointment to ____________.
a. fabricate the temporary form
b. create a model of the opposing arch
c. send to the lab to create the restoration
d. either b or c

Question 2

Place the steps of a PFM crown in order.
1 . Shade is selected
2 . Tooth is prepped
3 . Polyether or polysiloxane impression is taken
4 . Bite registration
5 . Temporary coverage is cemented
a. 1, 2, 3, 4, 5
b. 2, 1, 3, 4, 5
c. 1, 2, 4, 3, 5
d. 2, 3, 1, 4, 5

joshraies · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

d
RATIONALE: Alginate impressions are taken during the crown preparation appointment to create a model of the opposing arch or to send to the lab to create the restoration.

Answer to Question 2

a
RATIONALE: The steps of a PFM crown are: - Shade is selected - Tooth is prepped - Polyether or polysiloxane impression is taken - Bite registration - Temporary coverage is cemented