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Dental Materials > Test #2-2 > Flashcards

Test #2-2 Flashcards

1
Q

what is a polymer

A

single molecule made of smaller molecules (monomer)

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2
Q

what is a resin

A

contains many different molecules including polymers

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3
Q

what is a synthetic resin

A

formed by polymerization

synthetic plastics

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4
Q

what does synthetic indicate

A

man made, plastics paint

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5
Q

what does natural resins inciate

A

form of plant life

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6
Q

what are some characteristics of synthetitc resins

A
  • non metallic
  • molded into a form
  • stimulate oral tissue
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7
Q

what are synthetic resins used to create

A

partials, temps, appliances, ortho appliances, denture bases

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8
Q

what is a full denture

A

replacement for all the teeth and associated structures in 1 arch

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9
Q

what is a partial dentrue

A

replaces some teeth and related structures

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10
Q

what is a conventional denture

A

*All necessary surgery completed before denture is delivered

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11
Q

what is an immediate denture

A

constructed prior to extraction or any necessary surgery

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12
Q

What is a cu-sil partial denture

A

-flexible collar/soft elastomeric gaskets

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13
Q

what is an implant retained denture

A

denture snaps or screws on to implants

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14
Q

what is a non implant, non retained kinda of denture

A

over denture magnetic attachment

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15
Q

what is an obturator

A

denture that fills in a hole in the palate

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16
Q

what does paralysis of the soft palate result in

A

hypernasal, unintelligble speech

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17
Q

what is paralysis of the soft palate a result of

A

ALS, Stroke, Radiation Therapy

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18
Q

What can be created in the paralysis of the soft palate

A

a palatal lift

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19
Q

can 2 different combinations of dentures be used

A

FUD, and a lower implant retained denture

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20
Q

what is a base

A

mimics the soft tissue and fits over the alveolar ridge

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21
Q

what is a flange

A

extends vertically from the teeth toward the mucobuccal fold

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22
Q

what is the periphery (border)

A

edge located at the deepest part of the flange

23
Q

what is the framework

A

supporting skeleton

24
Q

what is the connector (bar)

A

link between parts of the framework

25
Q

what is the saddle

A

overlies soft tissue and supports the artificial teeth

26
Q

what is a clasp (retainer)

A

extension that partially encircles abutment teeth-

provides horizontal stability

27
Q

what is a rest

A

small, metal extension near a clasp that fits into a prepared depression on an abutment tooth

28
Q

what does a rest provide

A

vertical support

29
Q

be able to identify lingual and labial flange, tooth, clasp, saddle, rest, retention arm, reciprocating arm, minor connector, major connector on picture

A

is on pg 11

30
Q

what is a valplast denture

A

one with no metal

31
Q

what is the appt sequence for a prosthetic resin

A
  • alginate impressions
  • base plate and occlusal rim try in
  • wax try in and reline impresson
  • delivery
32
Q

what is the composition of a prosthetic resin

A

liquid monomer combined with polymer powder

33
Q

what is methacrylic acid

A

polymers of repeating molecular units

34
Q

what does the powder provide

A

body

35
Q

what does the initiator provide

A

begins molecular chaining

36
Q

what is the initiator

A

benzoyl peroxide

37
Q

what is the monomer*

A

methacrylate acid

38
Q

what is the polymer*

A

polymethylmethacrylate

39
Q

vinyl is for*

A

softening

40
Q

styrene is for *

A

hardening

41
Q

*what is the most common polymerization

A

addition

42
Q

what is addition polymerization

A

monomers are added one after another to form a polymer chain

43
Q
  • what is another kind of polymerization
A

condensation polymerization

44
Q

what is condensation polymerization

A

molecular by product is produced by the union of each monomer

45
Q

what is the by product of condensation polymerization that we dont want

A

water or alcohol

46
Q

What is the most common prosthetic resin*

A

PMMA

47
Q

when is heat cured PMMA used? Cold cured?

A

laboratory use, chairside

48
Q

What are good qualities of PMMA

A

high impact resistant acrylic

49
Q

compression molding of __________ resin is most common

A

heat molding

50
Q

what is a soft liner for

A

tissue conditioner

51
Q

what should you know about caring for a denture

A

-bleach is safe for acrylic but removes color and attacks the metal of partial dentures

52
Q

what should you not clean a denture with

A

hot water

abrasive agents

53
Q

What can patients be allergic to in a denture

A

acrylics

Dental Materials (6 decks)

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