Term unknown?
The VITA glossary will help you.
Glossary.
Impression
Procedure in dentistry. By taking an impression a negative mold of the jaws is manufactured; subsequent filling with e.g. plaster results in a positive mold of the modeled area, thus in a duplicate of the mold. This duplicate is called "model".
Implants
Implants are artificial tooth roots made of titanium; increasingly, implants are made of ceramics.
Interim prosthesis
Temporary prosthesis designed to fill the gap in the period until the final denture is incorporated, e.g. to help heal fresh extraction wounds.