<prompt> Which of the following is the most important in strength of ZOE?Liquid powder ratioTemperature of mixing stabSpeed of mixingAddition of few drops of water  <response>: 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 powderliquid PL ratio. 