Abstract: An Oral care product is provided which includes a mesoporous calcium silicate biomaterial (MCSB) dispersed in a polymeric material matrix. MCSB is an insoluble composite material of calcium oxide-silica.

Abstract: An oral care product comprising a source of calcium ions, a source of phosphate ions, and an insoluble whitening agent for deposition onto the teeth, characterized in that the source of calcium ions and the source of phosphate ions are physically separate prior to the use of the product.

Abstract: An oral care product comprising a source of calcium ions, a source of phosphate ions, and an insoluble whitening agent for deposition onto the teeth, characterised in that the source of calcium ions and the source of phosphate ions are physically separate prior to the use of the product.

Abstract: An oral care product comprising a first composition comprising an insoluble calcium salt that is not a calcium phosphate salt, a second independent composition comprising a source of phosphate ions, and a means for delivering each of the compositions to the surface of the teeth.

Abstract: An oral care product comprising a mesoporous calcium silicate biomaterial (MCBS) dispersed in a polymeric material matrix.

Abstract: A calcium oxide-silica composite biomaterial either in amorphous state or crystalline state having an average pore size, as determined by the BET method, in the range of from 0.8 to 4 nm, wherein the calcium oxide-silica content of the biomaterial is at least 80 wt %, the balance being optionally one or more other materials and wherein the molar ratio of calcium oxide to silica is at least 0.1.

Abstract: A composition is provided comprising a substance of interest encapsulated by a continuous layer of a plurality of salt crystals which layer is impermeable to the substance of interest. Also provided is a method of producing a continuous layer of a plurality of salt crystals, the salt comprising a cation and an anion, which method comprises (i) providing a substrate which comprises a plurality of negatively charged binding sites for the cation and/or a plurality of positively charged binding sites for the anion, and (ii) contacting the substrate with a solution of the salt under conditions which cause nucleation of salt crystals comprising the cation and the anion at a plurality of said binding sites, the plurality of charged binding sites being present on the surface of the substrate at a sufficient density so that the resulting plurality of salt crystals form a continuous layer.

Abstract: A composition is provided comprising a substance of interest encapsulated by a continuous layer of a plurality of salt crystals which layer is impermeable to the substance of interest. Also provided is a method of producing a continuous layer of a plurality of salt crystals, the salt comprising a cation and an anion, which method comprises (i) providing a substrate which comprises a plurality of negatively charged binding sites for the cation and/or a plurality of positively charged binding sites for the anion, and (ii) contacting the substrate with a solution of the salt under conditions which cause nucleation of salt crystals comprising the cation and the anion at a plurality of said binding sites, the plurality of charged binding sites being present on the surface of the substrate at a sufficient density so that the resulting plurality of salt crystals form a continuous layer.