What is the material that is widely found in nature that has been used to make dental casts since 1756?
An impression filled with flowable gypsum material, once hardened will be a _________reproduction of a patient's mouth.
The type of chemical reaction that occurs when material is hardening.
Hard replicas of hard and soft tissue of the patient's oral cavity made from gypsum products. Also known as models.
Working casts and dies are:
-Subject to high stress
-Higher strength and abrasion resistance and accuracy needed
Diagnostic casts are:
-Placed under little stress
-Lower properties of strength and abrasion resistance
What is the strength of gypsum products related to?
The amount of water used to produce the study or working cast.
What are uses of casts?
-Plan and track treatment progress
- Client education
- Indirect restorations (crown and bridge)
Created from the alginate impression; hard and soft structures
Forms the base of the model