Table 1: Contents, type, supplier, P/L ratio, and possibility of fluoride release of the dental cements investigated.

PowderLiquidTypeSupplierP/L ratioFluoride release

RelyX UnicemGlass powder, initiator, silica, substituted pyrimidine, calcium hydroxide, peroxy compound, pigmentMethacrylated phosphoric ester, dimethacrylate, acetate, stabilizer, initiatorResin cement, self-etching3 M ESPE (Seefeld, Germany)In capsulesYes
Ketac Cem AplicapGlass powder, pigmentsPolycarboxylic acid, tartaric acid, water, conservation agentsGlass ionomer, acid-base reacting3 M ESPE (Seefeld, Germany)In capsulesYes
Harvard zinc phosphate cementZinc oxide, magnesium oxideo-phosphoric acidZinc phosphate, acid-base reactingHarvard Dental International GmbH (Hoppegarten, Germany)3/2No
Ceramir Crown & BridgeCalcium aluminate, strontium fluoride, polyacrylic acid, tartaric acid, strontium aluminofluoride glassWater, acceleratorsBioceramic, acid-base reactingDoxa AB (Uppsala, Sweden)3.2/1Yes
Calcium aluminate cement reference materialCalcium aluminateWater, acceleratorsBioceramic, acid-base reactingDoxa AB (Uppsala, Sweden)2.5/1No
Glass ionomer cement reference materialPoly acrylic acid, tartaric acid, strontium aluminofluoride glass, strontium fluorideWaterGlass ionomer, acid-base reactingDoxa AB (Uppsala, Sweden)3.2/1Yes