Which of the following is used to prevent a custom impression tray from sitting too deeply when taking the impression?
A)A spacer
B)Stops
C)Undercuts
D)All of the above

Question

Quizplus · Accepted Answer

The purpose of stops is to prevent a custom impression tray from sitting too deeply when taking the impression.
A spacer creates room in the impression tray for the impression material.
Undercuts are areas that need to be filled in before making a spacer.

Which of the Following Is Used to Prevent a Custom