Flashcards in Linings and bases Deck (23):
what is the powder re. phosphoric acid based cements?
zinc oxide +other metallic oxides
what is the liquid re/ phosphoric acid based cements?
aqueous solution of phosphoric acid with buffers
Where does the setting reaction occur re. phosphoric acid based cements?
surface of powder
what kind of setting reaction happens re. phosphoric acid based cements?
what is mixing technique re. phosphoric acids based cements?
cool glass slab
why always replace cap on liquid?
what properties have phosphoric acid based cements?
low ph and mw- highly irritant
thermal and electrical insulator
strength to withstand condensation
no adhesive- no coronal seal
what are variants of phosphoric based cements?
how is zinc oxide euganol set?
what is powder re. zinc oxide euganol cements?
accelerator- zinc acetate
what is zinc oxide euganol incompatible with?
what are properties of zinc oxide euganol cements?
benficial irritancy- re reactionary dentine
non adhesive- no coronal seal
What is a derivative of z.o euganol?
ortho ethoxy benzoic- EBA cements
What are the two paste in calcium hydroxide cements?
1- glycol salicylate
2- zinc oxide with calcium hydroxide
what are properties of calcium hydroxide cements?
insufficient strength re. condensation
What is the powder re. polycarboxylate cements?
what is the liquid re. polycarboxylate cements?
polyacrylic acid aqeous solution
what are poroperties of polycarboxylate cements?
bond to stainless steel
what is GI & RMGIC?
what is the powder re. GI?
ion leachable fluroaluminosilicate glass with photosensitiser
what is the liquid re GI?
modified polyacrylic acid
What is a composite bulk fill?
SDR- smart dentine replacement