The ideal restorative material Flashcards
1
Q
what is a direct restorative material?
A
placed and set intraorally
2
Q
what is an indirect restorative material?
A
manufactured extra-orally
3
Q
why should metal restorations not be able to form electrical currents in the mouth?
A
galvanic pain from galvanic shock
- when two dissimilar metals in the mouth touch, an electric current can generate which causes pain
4
Q
what problems could arise from a large mismatch of values of coefficient of thermal expansion between restoration and tooth
A
gap and microleakage between tooth and restoration
cuspal pressure/defect when large expansion
adhesive bonds breakdown
5
Q
A
