L3b: Impressions

Question 1

What can we use when we don’t have perforated tray?

Answer 1

We can use adhesive material when we don’t have a perforated tray

Question 2

What kind of tray do we use with alginate?

Answer 2

With alginate we always use perforated trays.

Question 3

Which should be the size of the stock tray when we take the first impression?

Answer 3

When we take the first impression the stock tray should be larger than ridge 6 mm, in order to have enough space for the material

Question 4

What is a “distance” individual tray necessary for?

Answer 4

A “distance” individual tray is necessary for:

• Alginate (2mm space)
• Elastomeric impression material (3mm space).
• Photopolymerized trays appear to be the future because they are rigid, and they are easy to manufacture in the clinic, so we save a visit