1113 Test 3

Question 1

What are the methods of setting

Answer 1

Auto cure, light cure, dual cure

Question 2

When is amalgam used

Answer 2

When the patient can’t afford, can’t sit still or has lots of moisture

Question 3

What classes of cavity is amalgam used for

Answer 3

1 or 2 (not on the front of incisors for esthetics)

Question 4

What is galvanic action

Answer 4

When water and salt conduct a shock between 2 metals

Question 5

Describe glass ionomer

Answer 5

Releases fluoride, adheres to metal and teeth, used for class 5 restorations

Question 6

Describe the smear layer

Answer 6

Removed by etching for 20 seconds, layer by pulp, leave moist

Question 7

Describe intermediate restorations

Answer 7

Temporary, used for caries management, used on primary teeth

Question 8

What are the types of pulpal stimuli

Answer 8

Chemical (acid), biological (bacteria),

Question 9

What does calcium hydroxide do

Answer 9

Repairs dentin

Question 10

How much does the anatomic portion of an impression make

Answer 10

2 thirds

Question 11

How much of the impression does the base make

Answer 11

1 third

Question 12

How is the upper arch model trimmed

Answer 12

With points

Question 13

How is the lower arch model trimmed

Answer 13

Rounded

Question 14

How many scoops of powder is used for the upper impression

Answer 14

3 scoops

Question 15

How many scoops of powder is used for the lower impression

Answer 15

2 scoops

Question 16

When making plaster which goes first water or powder

Answer 16

Water

Question 17

What is synerisis

Answer 17

When impression materials dry out

Question 18

What is imbibition

Answer 18

When impression materials are too moist or have too much water

Question 19

Describe the metals that make up amalgam

Answer 19

Silver (strength), tin (workability and strength), copper (strength and corrosion resistance), zinc (suppresses oxidation)

Question 20

What is ductility

Answer 20

The ability to be flexible

Question 21

What is malleability

Answer 21

The ability to be manipulated or molded

Question 22

What is viscosity

Answer 22

How fast a liquid flows

Question 23

Define solubility

Answer 23

The ability of something to dissolve

Question 24

Describe the procedure for shallow amalgam

Answer 24

desensitizer, etching and bonding.

Question 25

Describe moderate amalgam restorations

Answer 25

Base, varnish or desensitizer, etching/ bonding

Question 26

Describe deep amalgam restoration procedures

Answer 26

Liner, base, varnish or desensitizer, etching/bonding

Question 27

What is the most common bleaching agent for tooth whitening

Answer 27

Carbamide peroxide

Question 28

Describe zinc oxide

Answer 28

Anti-bacterial, affordable, used in zinc oxide eugenol (ZOE), anti-inflammatory, used for temporary restorations

Question 29

describe varnish

Answer 29

coating of fluoride applied to teeth to prevent decay, used on children and adults with high risk of caries, made of fluoride and resin

Question 30

what is the final impression made of

Answer 30

elastomeric material

Question 31

what is wax used for

Answer 31

measuring patients bite (registration), for making models of temporary restorations (bridges)

Question 32

what are advantages of alganate

Answer 32

inexpensive, quick-setting

Question 33

describe polyether

Answer 33

A rubber-based material, known for its stiffness

Question 34

which is more practical Addition Silicone or condensation silicone

Answer 34

addition silicone

Question 35

describe Zinc Oxide-Eugenol (ZOE)

Answer 35

used for final impressions in complete denture cases, Captures fine detail and provides excellent stability but can be irritating to some patients due to the eugenol component

Question 36

describe impression compound (thermoplastic)

Answer 36

A wax-like material that softens with heat, Primarily used for border molding or making impressions for dentures, Allows for adjustments by reheating

Question 37

why do you take a lower impression first

Answer 37

because patients choke more on the upper arch

Question 38

what are the setting times of alganate

Answer 38

fast setting - 1-2 minutes, regular setting - 3+ minutes

Question 39

What are the types of bases

Answer 39

Protective, insulative, sedative

Question 40

Which materials are used for bases

Answer 40

Zoe, zinc phosphate cement, polycarboxylate, glass ionomer

Question 41

What are the types of elastomeric material

Answer 41

Polysolfide (strong odor), polyether (solid stability and okay odor), condensation silicone (okay odor and stability), addition silicone (okay odor and excellent stability)

Question 42

Describe the face bow

Answer 42

Measures the relation between the maxillary arch and the tmj joint

Question 43

Describe the face bow procedure

Answer 43

Attach tray, rod and bite tabs, make the patient bite slowly and level, document

Question 44

Where should an impression go

Answer 44

2-3 mm behind tuberosity

Question 45

How would an impression be critiqued

Answer 45

Detail, margins, proper flow, tray fit, distortion free

Question 46

How does glass ionomer adhere

Answer 46

Chemically

Question 47

What type of wax is used to extend

Answer 47

Utility wax

Question 48

What is pulimerization

Answer 48

Hardening

Question 49

What are temporary restoration made of

Answer 49

Acrylic resins

Question 50

What are intermediate materials used for

Answer 50

Restorative emergencies, caries management, Bases

Question 51

What are intermediate materials used for

Answer 51

Restorative emergencies, caries management, Bases

Question 52

What is hardness

Answer 52

How much a material will be dented

Question 53

Should dental materials be high or low solubility

Answer 53

Low

Question 54

What is an indirect restoration

Answer 54

Final (made in lab)

Question 55

What type of restoration material is zoe

Answer 55

Intermediate

Question 56

What is a pestal

Answer 56

A ball that mixes