Den 165 Final Review

Front 1

What type of indirect restorative material combines strength, translucence, and the ability to match the natural tooth?

Back 1

Porcelain

Front 2

What type of dental cement is composed of zinc oxide with a small amount of magnesium oxide powder and mixed with a solution of phosphoric acid in water?

Back 2

Zinc phosphate

Front 3

When the oral fluids act as a carrier between two metals that are present in the mouth and cause of small electrical shock, it is called?

Back 3

Galvanism

Front 4

A liquid catalyst for the self curing tray resin is a?

Back 4

Monomer

Front 5

What soft wax is used to form a wax box around an impression prior to pouring it with gypsum?

Back 5

Boxing wax

Front 6

What is the physical or chemical forces or attraction that hold unlike substances together?

Back 6

Adhesion

Front 7

The ratio of water to powder for stone is?

Back 7

Less than plaster

Front 8

The ability of a material to flow over a surface is?

Back 8

Wetability

Front 9

What type of stress and strain pulls and stretches a material?

Back 9

Tensile

Front 10

Which materials have rubber like qualities, are used for areas that require precise duplication, and are not as affected by atmospheric changes?

Back 10

Elastomeric impression material

Front 11

Any push or pull on an object defines?

Back 11

Force

Front 12

Also known as adhesives, these materials are used to improve the retention between the tooth structure and the restoration.

Back 12

Bonding agent

Front 13

What irreversible hydocolloid impression material can be used when less accuracy is needed?

Back 13

Algenite

Front 14

What type of direct restorative material is placed in a thin layer on the walls and floor of the cavity preparation and protects the pulp from bacteria and irritants?

Back 14

Liner

Front 15

In dentistry, gold, palladium, and platinum metals used for cast restorations are classified as?

Back 15

Noble material

Front 16

What is the average biting force on the molars for a person with natural dentition?

Back 16

130-175

Front 17

What is the ratio of water to powder for plaster?

Back 17

50 milliliters of water to 100 grams of powder

Front 18

What type of gypsum material is the weakest?

Back 18

Impression plaster

Front 19

Which custom trays require equipment with a frame that holds the sheets directly under a heating element and when they are softened, drops the sheet onto the cast as the material is drawn to the model?

Back 19

Vacuum formed

Front 20

The ability of a material to withstand compressive stresses without fracturing is?

Back 20

Malleability

Front 21

These elastomeric impression materials have high accuracy, no shrinkage, dimensional stability, high tear resistance, no taste, and no odor.

Back 21

Silicone

Front 22

Most of these types of waxes have a certain degree of hardness, toughness, resistance to flaking, and ability to achieve smooth surface.

Back 22

Pattern wax

Front 23

Orthodontic stone is a mixture of laboratory plaster and?

Back 23

Laboratory stone

Front 24

What classification of impressions are taken by the dentist or dental assistant to produce a reproduction of occlusal relationship of the maxillary and mandibular teeth when the mouth is occluded?

Back 24

Bite registration

Front 25

What broad group encompasses the hard wax used to crown and bridge casting?

Back 25

Pattern wax

Front 26

A type of wax that is also known as periphery or bending wax, it can be molded to most surfaces with additional heat.

Back 26

Utility

Front 27

Single paste systems that are light cured and release fluoride

Back 27

Compomers

Front 28

Place between tooth and restoration to protect pulp from chemical irritants and temperature changes

Back 28

Base

Front 29

Can occur when the gold restoration in one arch contacts the amalgam restoration in the opposing tooth in the opposite arch.

Back 29

Galvanism

Front 30

Impression material that is stiffer than many other materials and can be used for custom tray and syringe

Back 30

Polyether