19. It consists of powder containing ZnO AND
Liquid containing eugenol
Powder contains finely ground ZnO which
enhance flow of cement
It has been shown that 1mm of Zno eugenol
cement has the radiopacity corresponding to
4.5 mm of aluminium, which is slightly lower
than G.P
20.
21. Ca(OH)2 is colorless crystal or white powder
Prepared by reacting Ca oxide (lime) with
water, process called slaking
When heated above 580C it dehydrates
forming oxide
HERMANN introduced in endodontic in 1930
22.
23.
24. BASE PASTE catalyst paste
Glycol salicylate (40%) Ca(OH)2 (50%)
Titanium dioxide (inert ZnO (10%)
filler) Zn stearate(0.55%) ;
Calcium tangstate or acclerator
Ba sulphate (provides Ethyl toluene
radiopacity) Sulphonamide (39.5%);
oily compound, acts as
carrier