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dental material > denmat final > Flashcards

denmat final Flashcards

1
Q

list the agencies responsible for setting standards and specifications of dental materials

A

ADA
ISO
FDA

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2
Q

list the requirements necessary for a product to qualify for the ADA seal of acceptance

A

?

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3
Q

list 3 types of biting forces

A

compressive
shearing
tensile

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4
Q

what are the tooth structures most ideal for; compressive

A

?

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5
Q

what are the tooth structures most ideal for; shearing

A

?

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6
Q

what are the tooth structures most ideal for; tensile

A

?

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7
Q

define stress

A

amount of FORCE exerted from within an object

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8
Q

define strain

A

amount of CHANGE that the force has produced

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9
Q

define ultimate strength

A

?

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10
Q

describe the effects of moisture and acidity on dental materials

A

?

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11
Q

identify 5 job related health and safety hazards for employees in dental offices

A 
exposures to; 
particulate matter
mercury 
toxic effects of chemicals 
airborne contaminants
biological contaminants
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12
Q

describe the basic infection control methods of dental materials in the treatment area

A

?

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13
Q

explain how to use the amalgam spill kit

A 
locate
slow sweep motions to gather
syringe to collect
put in container
dispose
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14
Q

describe the purpose of an impression

A

reproduce dental arches in negative form to make a model

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15
Q

list the various categories of impression materials

A

reversible/ agar

irreversible/ alginates

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16
Q

explain differences in various impression materials

A

reversible; cold= gels / warm= runny

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17
Q

list the supplies needed to make an alginate impression

A

alginate, water, tray(s), spatula, mixing bowl, scooper,

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18
Q

explain how supplies to make an alginate impression is used

A

alginate and water to mix with spatula in mixing bowl.

tray to load, set and get impression in mouth

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19
Q

differentiate among diagnostic cast, working cast, and dies

A

Diag; positive replica
Work; everyday, yellow stone
die; crown/bridge, harder material

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20
Q

describe the chemical and physical nature of gypsum products

A

large; porous/ weak
small; strong

chemical??

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21
Q

demonstrate tray selection for alginate impressions for a patient

A 
premanufactured; plastic (perforated)
metal (rim-lock with adhesive)
full-upper
full-lower
half-right 
half-left
anterior only
must be large enough to fit all oral structures
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22
Q

demonstrate mixing alginate

A 
consider working time
watch color
remove air
press side of bowl
observe smooth consistency
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23
Q

demonstrate loading

A

start at posterior and toward anterior

quickly

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24
Q

demonstrate seating the tray

A 
set lower tray first 
stand in front of patient 
one side at a time
upper tray set second
stand behind PT
ANT 1st POS 2nd
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25
Q

demonstrate removing the impression

A

snap out quickly, keep wet

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26
Q

describe infection control and disinfection techniques used when working with impressions strength

A

rinse with cool water
place into plastic bag
spray with disinfectant

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27
Q

explain the procedure for mixing and handling gypsum products to create diagnostic casts

A

spatulate material till smooth

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28
Q

pour the anatomic portion and MX and MN diagnostic casts

A

?

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29
Q

pour the base portion of MX and MN diagnostic cast

A

?

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30
Q

discuss the effects of acid etching on enamel and dentin

A

?

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31
Q

describe the various types of composite resin restorative materials

A

?

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32
Q

describe how fillers affect the properties of composites

A

?

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33
Q

describe procedural differences between direct and indirect composite restorations

34
Q

list the components of compomers

35
Q

list the indications and contraindications of sealants for patient use

36
Q

communicate the use, benefits and home care patient instructions for sealant applications

37
Q

discuss the retention, wear, and replacement of sealants

38
Q

review desensitizing agents

39
Q

describe the types, agents and mode of action for sealants

40
Q

recognize causes of tooth sensitivity

41
Q

outline the treatment options for tooth sensitivity

42
Q

what are the etiologies of stimuli that elicit pain response

43
Q

describe the application and armamentarium used for sealants

A

app- dry area, etch for 10-20 sec, rinse, dry, apply sealant, light cure.
set-up dry angle, sealant, etchant, light cure.

44
Q

explain light-curing and review characteristics of the unit

45
Q

describe the mechanism for bonding porcelain to metal for porcelain-fused-to-metal (PFM) crowns

46
Q

list the types of alloys used in PFM crowns

47
Q

explain how CAD/CAM technology is used to “make impressions” and fabricate a ceramic crown

48
Q

define chroma

A

intensity or strength of a color

49
Q

define value

A

how light or dark a color is/ light passes through

50
Q

define hue

A

dominant color of WAVELENGTH detected. yellow and brown ranges

51
Q

describe steps to be taken to ensure proper conditions for shade taking

A

natural cure light not fluorescent light

52
Q

list the main components of a dental amalgam

A

mercury and copper

53
Q

define creep

A

gradual change in shape of restoration

54
Q

define corrosion

55
Q

define tarnish

56
Q

define abrasion

57
Q

define finishing

58
Q

define polishing

59
Q

define cleansing

60
Q

list the contraindications to the use of abrasives on tooth structure and restorations

61
Q

differentiate between the art portion and anatomic portion of a diagnostic cast

62
Q

describe the differences among the types of gold alloy used for dental restorations

63
Q

describe the characteristics of metals used for casting partial denture frameworks

64
Q

describe the uses of wrought wire

65
Q

explain the purpose of a post

A

have more retention for restorations

66
Q

describe the basic types of implants used in dentistry

A

subperiosteal
transosteal
endosseous

67
Q

describe different types of metals used for dental implants

68
Q

explain the rationale for use of plastic instruments for cleaning implants

A

won’t scratch titanium

minimal alteration of implant

69
Q

explain the procedure for assessing the health of the gingival tissues supporting an implant

A

?

pockets?

70
Q

explain the proper procedures for professionally cleaning an implant

A

??
probe
use graphite/ plastic instruments
TinOxide used to polish

71
Q

identify home cleaning aids appropriate for use on an implants

A

gental sulcus brush; tissue health
inter proximal brush; mounted on plastic not metal
flossing; daily
balsa wood tooth pick; plaque removal
antibacterial rinse; reduce bacterial load

72
Q

compare the use of cements for effects on pulpal protection

A

PP; bacterial effects of caries, biological response to chemicals contained in restorative materials

73
Q

describe the use of the ultrasonic cleaner for cleaning a complete or partial denture un the office

74
Q

discuss the manipulation considerations for mixing cements

A

right ratio and speed

75
Q

differentiate between negative and positive reproduction

A

negative- impression

positive- gypsum model

76
Q

compare the use of cements for effects on luting

A

spread cement in crown before setting in mouth

77
Q

compare the use of cements for effects on restorations

A

provisionals/ temp, lower strength

78
Q

compare the use of cements for effects on surgical dressings

A

provide comfort
control bleeding
protection

79
Q

what are chemical desensitizers

A

synsodyne

fluoride

80
Q

what are mechanical desensitizers

A

gingival grafting

perio-pac

dental material (2 decks)

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