Aluminum oxide, aluminum hydroxide, aluminum fluoride-trihydrate, and titanium dioxide hydrate were added to a commercial polycarboxylate cement. The first substance increased the setting time and certain physical properties. The others decreased the same properties to varying degrees


The influence of various admixes on the physical properties of a polycarboxylate cement.
Øilo G, Ruyter IE.
J Dent Res. 1983 Aug; 62(8): 937-939.