Which of the following is the most important in strength of ZOE?
The solubility of the set cement is highest among the cements (0.4 to 1.5 % wt). They disintegrate in oral fluids. This breakdown is due to hydrolysis of the zinc eugenolate matrix to form zinc hydroxide and eugenol. Solubility is reduced by increasing the powder/liquid (P/L) ratio.
Liquid powder ratio
Temperature of mixing stab
Speed of mixing
Addition of few drops of water