glass ionomer Flashcards
1
Q
when is GI indicated?
A
- root caries
- class V cavities
- temporary restorations
- stepwise method- deep caries
- atraumatic technique- anxious patients
- abrasion/erosion cavities
- tunnel preps
- luting cement
2
Q
why is GI indicated for class V, abrasion, erosion, root caries?
A
non load-bearing areas
3
Q
what are the types of glass ionomer available?
A
GI- not cured
RMGI- cured
Compomer- cured (filler replaced)
4
Q
advantages of GI?
A
- directly bonds to enamel and dentine
- tooth coloured
- biocompatible
- RGMI (increases strength)
- easy to mix and manipulate
5
Q
disadvantages of GI?
A
- poor aesthetics (ant)
- brittle
- poor resistance to abrasion
- limited working time (not command set)
- poorer strength than comp
