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3RD year > DentMat Prelims Exam Lec > Flashcards

DentMat Prelims Exam Lec Flashcards

1
Q

what are the three factors of oral environment

A
  1. temp
  2. pH
  3. masticatory force
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2
Q

normal oral temp

A

32°C - 37°C

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3
Q

neutral pH level

A

pH 7

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4
Q

incisors average force

A

155 N

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5
Q

canine average force

A

208 N

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6
Q

premolar average force

A

288 N

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7
Q

first molar average force

A

290 N

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8
Q

second molar average force

A

800 N

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9
Q

whats the most biocompatible material to our teeth

A

gold

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10
Q

characteristics of an ideal dental material

A
  1. biocompatible
  2. mechanically stable and durable
  3. resistant to corrosion
  4. dimensionally stable
  5. minimal conduction
  6. esthetic
  7. easy to manipulate
  8. adheres to tissues
  9. tasteless and odorless
  10. cleanable and repairable
  11. cost-effective
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11
Q

classifications of dental materials

A
  1. preventive
  2. restorative
  3. auxiliary
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12
Q

whats better than cure

A

prevention

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13
Q

toothpaste other name

A

dentrifices

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14
Q

the addition f fluoride to water to reduce tooth decay

A

fluoridation

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15
Q

overexposure to fluoride

A

fluorosis

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16
Q

what procedure is advisable for newly erupted molars

A

pit and fissure sealants

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17
Q

classify the material:
pit and fissure sealants

A

preventive

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18
Q

classify the material:
compomers

A

preventive
restorative

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19
Q

classify the material:
hybrid ionomer

A

preventive
restorative

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20
Q

classify the material:
glass ionomer cement

A

preventive

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21
Q

classify the material:
liners

A

preventive
restorative

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22
Q

classify the material:
bases

A

preventive
restorative

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23
Q

classify the material:
composites

A

preventive
restorative

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24
Q

classify the material:
primers

A

restorative

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25
Q

classify the material:
bonding agent

A

restorative

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26
Q

classify the material:
amalgams

A

restorative

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27
Q

classify the material:
cast metals

A

restorative

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28
Q

classify the material:
ceramics, metal-ceramics

A

restorative

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29
Q

classify the material:
denture polymers

A

restorative

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30
Q

classify the material:
acid-etching solution

A

auxiliary

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31
Q

classify the material:
impression materials

A

auxiliary

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32
Q

classify the material:
casting investments

A

auxiliary

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33
Q

classify the material:
gypsum cast

A

auxiliary

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34
Q

classify the material:
dental stones, plaster, distone

A

auxiliary

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35
Q

classify the material:
dental waxes

A

auxiliary

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36
Q

classify the material:
acrylic resins

A

auxiliary

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37
Q

finishing and polishing arasives

A

auxiliary

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38
Q

classify the material:
dental compounds

A

auxiliary

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39
Q

classify the material:
gutta-percha

A

auxiliary

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40
Q

dental material classes

A
  1. metals
  2. ceramics
  3. polymers
  4. composites
41
Q

consists of inorganic, silicate glasses, porcelains, or highly crystalline solids heated at high temperature

A

ceramics

42
Q

chemical compound consisting of large organic molecules formed by the union of many smaller repeating units

A

polymers

43
Q

materials with chemical or covalent bonds

A

polymers

44
Q

example of synthetic polymer

A

nylon

45
Q

polymer classifications

A

natural
synthetic
low melting point
soft and not stiff

46
Q

qualities of composites

A

insoluble
good tooth-like appearance
insensitive

47
Q

when was dentistry as a specialty believed to have began

A

3000 B.C.

48
Q

when and who carved ivory or bone for the construction of partial dentures that were fastened to natural teeth

A

700 BC
Etruscans

49
Q

when and who used implants consisting of seashell segments that were placed in anterior teeth sockets

A

600 AD
Mayans

50
Q

surgeon to four kings, used lead or cork for tooth fillings

A

Ambroise Pare

51
Q

used cloth fragments to fill the cavities in her teeth

A

Queen Elizabeth I

52
Q

who are the four kings that Ambroise Pare served for

A

King Henry II
Francis II
Charles IX
Henry III

53
Q

father of modern dentistry

A

Pierre Fauchard

54
Q

when did modern dentistry begin

A

1728

55
Q

discovered caries and its classifications;
he began the process of standardization

A

Greene Vardiman Black

56
Q

ADA year

A

1928

57
Q

CSA year

A

1966

58
Q

dental products should confirm to appropriate standards or specifications

A
  1. serial / lot number
  2. composition
  3. physical properties
  4. biocompatibility
  5. data covering
59
Q

international standards

A

FDI
ISO

60
Q

properties of dental materials

A
  1. physical
  2. thermal
  3. electrical
  4. optical
  5. mechanical
61
Q

susceptible to being dissolved

A

solubility

62
Q

adsorption + absorption

A

sorption

63
Q

natural process where molecules of a gas or liquid adhere to the surface of a solid

A

adsorption

64
Q

passage of a substance into the interior of another by solution or penetration

A

absorption

65
Q

a molecular or atomic attraction between two contacting surfaces

A

adhesion

66
Q

force of molecular attraction between molecules or atoms of the same species

A

cohesion

67
Q

a material substrate that is bonded to another material by means of an adhesive

A

adherend

68
Q

substance that promotes adhesion

A

adhesive

69
Q

process of joining two materials by means of an adhesive agent that solidifies

A

adhesive bonding

70
Q

ability of substance to be wet

A

wettability

71
Q

the eye is sensitive to what wavelength

A

400nm(violet) to 700nm(dark red)

72
Q

a color space that specifies colors based on three properties of color

A

Munsell Color System

73
Q

three properties of color

A

hue
value
chroma

74
Q

color

A

hue

75
Q

lightness

A

value

76
Q

saturation

A

chroma

77
Q

see through

A

transparency

78
Q

blurry

A

translucency

79
Q

prevents the passage of light

A

opacity

80
Q

what absorbs all light colors

A

black

81
Q

what reflects all light colors

A

white

82
Q

what absorbs all light, but reflects its own color

A

blue

83
Q

objects that appear to be color-matched under one type of light, but may appear different under another type

A

metamerism

84
Q

when the material becomes the source of light

A

fluorescence

85
Q

three basic forces

A

tensile force
compressive force
shear force

86
Q

types of stress

A

tensile
compressive
shear
flexural
torsional

87
Q

the deformation or change in dimension an object under stress experiences

A

strain

88
Q

stress-strain curves

A

elastic limit
yield strength
ultimate strength

89
Q

when the force is removed, the material will come back to its original state;
reversible

A

elastic phase

90
Q

material can’t come back to its original state;
irreversible

A

plastic phase

91
Q

elastic phase becomes plastic phase

A

elastic limit

92
Q

gradual deformation

A

creep

93
Q

stress decreases, but there’s already deformation

A

stress relaxation

94
Q

ability to be bent without breaking

A

flexibility

95
Q

ability to be hammered or compressed plastically into thin sheets without fracture

A

malleaility

96
Q

relative ability of a material to elongate plastically under a tensile stress

A

ductility

97
Q

easily breakable material

A

brittleness

98
Q

subjected to a cycle of stress

A

fatigue

3RD year (7 decks)

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