Structure And Properties Of Dental Materials

Front 1

1. To understand the proper use of a dental material, it is necessary to be familiar with its__ and ____ properties,

Back 1

Physical and Chemical

Front 2

2. List at least 3 questions that a dentist may ask when determining which dental alloy to use in a restoration

Back 2

(What is its strength?);
(How far can it be bent without permanent distortion?)
(How hard is it? [giggaty])
(Will it discolor?)

Front 3

3. The mechanical and physical properties of any material depend on:

Back 3

internal structure

Front 4

4. T or F:
_____The three states of matter are gas, solid, and liquid.

Back 4

True

Front 5

5. Many dental materials were liquid at one point, and at some point in their fabrication were
changed into a solid state by:
a. cooling b. chemical reaction c. boiling d. waxing

Back 5

A or B

Front 6

6. A _______________ state of matter will occupy a definite volume of space and whose shape does not depend on a container.

Back 6

Solid

Front 7

7. If an objet feels hard and unyielding, one concludes that it is:

Back 7

a solid

Front 8

8. There are _______ possible types of space lattices.

Back 8

14

Front 9

9. The ultimate structure of gold is composed of a repeated pattern of individual
____ each one oriented in a definite three dimensional relationship with the others.

Back 9

space lattices (tell me that doesn’t sound like something off the menu of that one Asteroid Diner in “Space Balls”…)

Front 10

10. T or F
:_____Most crystalline materials used in dentistry form a rhombic spacelattice.

Back 10

FALSE (They have a cubic form)