Ceramics Quizish Flashcards
1
Q
What are the three classes of bioceramics? Give examples of each.
A
Bioinert-Alumina
Bioactive-HA (high temp)
Biodegradable-HA (low temp)
2
Q
Summarize tissue interactions with bioinert ceramics.
A
Type 1-Bioinert - Dense -No tissue attachment, fibrous layer
2-Bioinert-Porous-Biological fixation, mechanical stability
3-Bioactive-chemical bonding, mechanical stability
4-Biodegrade-replace tissue
3
Q
4 Mechanisms to strengthen ceramics
A
Polishing-smooth surface, eliminate flaws
Ion exchange-compressive strength
Sintering-compressive strength
Small grains
4
Q
CaP ceramics:What factor dictates the stability of CaP compounds?
A
Sintering temp
5
Q
In what states are CaP ceramics typically used in surgery or augmentation?
A
Paste or powder
