Mechanical mixing of zinc oxide-eugenol cements.

An analysis of the data yielded the following conclusions: 1. The use of a gelatin capsule in a metal casing combines the advantages of mechanical mixing and those of a disposable system. 2. In comparison to conventional mixing by hand, equal results can be obtained with mechanical mixing. 3. Mixing time and the use of a glass pestle will influence the setting time and the film thickness, whereas the type of casing only affects the setting time. No clear correlation was found between the temperature rise during mixing and the setting time, but the total quantity of the mix can influence the setting time. 4. The compressive strength was barely affected by the various mixing conditions.