Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Removable Pros > Denture Base Resins > Flashcards

Denture Base Resins Flashcards

1
Q

What is resin?

A

a broad term used to describe natural oof synthetic substances that form plasti cmaterails after polymerization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is acrylic?

A

designating a colorless, pungent acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the properties of PMMA resin?

A
  • excellent esthetic properties
  • adequate strength
  • low water sorption
  • low solubility
  • non-toxic, low allergenicity
  • easily repaired
  • reproduced detail accurately
  • simple molding and processing technique
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the ingredients of PMMA resin?

A
  • liquid monomer (methyl methacrylate)
  • powdered polymer (polymethyl methacrylate)
  • plasticizer (dibutyl phthalate)
  • initator (benzoyl peroxide)
  • pigments
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What does the PMMA liquid contain?

A
  • methyl methacrylate
  • glycol dimetacrylate (cross-linking)
  • hydroquinone (increase shelf life)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the different types of acrylic resin?

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the systems of PMMA resin?

A
  • liquid monomer
  • powdered polymer
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What does the PMMA powder contain?

A
  • PMMA beads
  • pigments
  • plasticizer (dibutyl phthalate)
  • benzoyl peroxide (initator of polymerization)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What types of cure can resin have?

A
  • heat cure
  • chemical cure
  • light cure
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the characteristics of heat-activated denture base?

A
  • used in fabrication of all denture base
  • thermal energy required for polymerization
  • composition
  • PMMA (powder and liquid)
  • Powder
  • Liquid
  • cross linking agent is added to liquid
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the techniques to process denture resins?

A
  • compression molding
  • injection modling technique
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the bubbles in the processed denture called?

A

porosity
- spherical bubbles inside resin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the difference between internal and other types of porosity?

A
  • internal porosity (caused by a temperature above 100 degrees C inside the flask)
  • other porosity (inadequate pressure, not enough resin in mold, improperly mixed resin)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are denture teeth made of?

A
  • same composition as the denture base resin, except for pigmentation to produce tooth shades
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is an autopolymerized resin?

A
  • amine in the liquid reacts with the benzoyl peroxide in the powder to promote polymerization at room temp
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Whats the difference between heat-activated and autopolymerized?

A
  • the method of activation of the initator is benzyol peroxide
  • a greater degree of polymerization with head-activated
  • better color stability with heat-activated
17
Q

What are the characteristics of the light activated denture base resins?

A
18
Q

What is the CAD/CAM technology used for in dentures?

A

use an acrylic base milling puck and shade guide then send it in to the lab

Removable Pros (19 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions