Agent, useful for protecting tooth surfaces in the bleaching process, comprises thick gel film containing gel former, and water and/or organic solvent, phosphate; and a gel-film containing gel-binder, water and calcium ion

摘要

Agent (I), for protecting tooth surfaces, in the conventional bleaching process by biomimetic deposition of fluorine apatite, comprises at least prefabricated gel film (A) with a thickness of 50-1000 mu m containing at least a gel former (A1), water and/or organic solvent (A2), phosphate or hydrogen phosphate ion (A3), optionally fluoride (A4), optionally at least an amino acid (A5) and optionally carboxylic acid or a buffer system with a pH of 4-7 (A6), and gel-film (B), with a thickness of 50 mu m to 5 mm, containing a gel-binder (B1), water (B2) and calcium ion (Ca 2 +) (B3).