9/3: Mouth Preparation Flashcards
1
Q
- What is the correct order for an RPD?
A
a. Guide plane
b. Survey line
c. Undercut
2
Q
- In tooth-tissue supported RPDs, the periodontal membranes allow for ___ and muco-periosteum allows for ___ movement
A
a. 0.25mm
b. 2mm
3
Q
- Can you do border molding on the master cast?
A
Yes
4
Q
- How should you take altered cast impressions?
A
a. 2 steps:
i. 1st = impression of teeth an residual ridge
ii. 2nd = impression of residual ridge only
5
Q
- What do you remove on an alternative/altered cast?
A
a. Distal extensions
6
Q
- Does the altered cast impression procedure offer significant advantages over the one-piece cast?
A
No
7
Q
- How much mm of tray extension should you have in your custom tray?
A
a. 2-3mm
8
Q
- How much wax should be placed over teeth and residual ridges in the custom tray?
A
a. 3mm over teeth
b. 1.5 over ridges
