If a polyvinyl siloxane material is used to make the final impression for a maxillary cast restoration, the impression tray must
1. be rigid.
2. have occlusal stops.
3. be coated with an appropriate adhesive.
4. cover the hard palate
(1) (2) (3)
(1) and (3)
(2) and (4)
(4) only
All of the above.
0 explanations
Explanations are useful to guide through learning process and confirm that the correct answer is indeed correct.
Only registered users can add explanations