The invention proposes a kit and formulations for biomimetic deposition of apatite on teeth from a partially elastic shaped body comprising an envelope, whereby the shaped body a) comprises at least one mineralization matrix containing a gel that comprises water-soluble phosphates or phosphates that can be hydrolysed to form water-soluble phosphate ions and has a pH value of 2 to 8, optionally fluorides, and b) the at least one or a second mineralization matrix comprises a second gel having a pH value of 3.5 to 14 comprising calcium ions or compounds releasing calcium ions. Moreover, the method for producing the formulation and the use thereof for the deposition of apatite, in particular of needle-shaped fluorapatite crystallites, is claimed. Using the formulations according to the invention, it is feasible to deposit more than or equal to 1 μm apatite, in particular fluorapatite, on tooth surfaces in order to seal or brighten porous tooth surfaces.
