Glass ionomer cement (GIC) and Biodentine Flashcards

1
Q

What is Glass ionomer cement (GIC)?

A

-Restorative dental material

-Usually used as a provisional treatment to manage caries

-Composed of powdered glass and aqueous solution of polyacrylic acid.

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

How does GIC bond chemically to the tooth?

A

GIC forms ionic bonds with calcium ions in the tooth, providing adhesion

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

What does GIC release that aids in the prevention of secondary decay?

A

Releases fluoride

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

What is GIC commonly used for?

A

For small fillings

Cementing crowns

Liners

Base for restorations

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

Why can’t GIC be placed near the pulp?

A

it is acidic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the adhesion process for GIC?

A
  1. Preparation :
    - Clean + prepare tooth surface by removing decay + debris
    - Use gentle etching to create micro-retentive areas (roughness)
  2. Application of GIC:
    - Place mixed GIC on the prepped tooth surface
  3. Chemical bonding:
    -Polyacrylic acid in GIC interacts with Ca2+ ions in tooth structure, forming chemical bonds.

Micro mechanical bonding:
- GIC flows into surface irregularities.
-Upon setting, mechanically interlocks with enamel and dentin.

4.Curing/setting:
- Allow GIC to set and cure, establishing a strong bond to the tooth.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the 2 bonding mechanisms for GIC?

A

Chemical adhesion

Micromechanical adhesion

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

What are the advantages of GIC?

A
  • Very forgiving of moisture
  • Transmits little stress to tooth when setting

-Seals well

-Fluoride release , which prevents secondary decay and support remineralisation.

-Non-irritating of the pulp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is biodentine?

A

-Bioactive dental material used as a dentin substitute.

  • Contains tricalcium silicate powder that is mixed with a liquid containing calcium chloride in an aqueous solution of polycarboxylate.

-Acid component in the liquid but is alkaline when it sets.

-excellent sealing properties

-sets quickly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What does biodentine promote?

A

Dentin regeneration and stimulating the formation of hydroxyapatite.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the reparative affect of biodentine?

A

Causes laying down of reparative dentine and bridging off the exposure site.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the sand which technique?
Involves layering of different

A

Induction of TGF-B1
materials to achieve specific dental restorations.

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