Week 06

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created 2 weeks ago by clmckenna
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1

What is the material that is widely found in nature that has been used to make dental casts since 1756?

Gypsum

2

An impression filled with flowable gypsum material, once hardened will be a _________reproduction of a patient's mouth.

Positive

3

The type of chemical reaction that occurs when material is hardening.

Exothermic

4

Hard replicas of hard and soft tissue of the patient's oral cavity made from gypsum products. Also known as models.

Casts

5

Working casts and dies are:

-Subject to high stress

-Higher strength and abrasion resistance and accuracy needed

6

Diagnostic casts are:

-Placed under little stress

-Lower properties of strength and abrasion resistance

7

What is the strength of gypsum products related to?

The amount of water used to produce the study or working cast.

8

What are uses of casts?

-Plan and track treatment progress
- Client education
- Indirect restorations (crown and bridge)

9

Created from the alginate impression; hard and soft structures

Anatomic portion

10

Forms the base of the model

Art portion