ZINC OXIDE EUGENOL

a. Used as temporary, CO2 pH is neutral and its Eugenol content ー provides palliative effect.
b. Type IV ー used as liner.
c. Biocompatibility is highest -- sedative / soothing action to pulp ー type IV
d. Disadvantage ー causes burning sensation.
e. ZnOE Eba ー modified form ー no burning sensation.
f. Retarded of setting reaction ー glycerin.
g. Acceleration of setting reaction ー acetate water

Increase working time of all above materials :
○ Cool glass slab
○ Alter P/L ratio
○ Maximum increments for Zn phosphates