METHOD FOR INHIBITING CHEMICAL STAINING OF TEETH
    73.
    发明公开
    METHOD FOR INHIBITING CHEMICAL STAINING OF TEETH 审中-公开
    用于预防牙齿变色化工

    公开(公告)号:EP1753390A1

    公开(公告)日:2007-02-21

    申请号:EP05759166.1

    申请日:2005-06-02

    CPC classification number: A61K8/81 A61K8/22 A61Q11/00

    Abstract: A method for inhibiting chemical staining of a dental surface comprises contacting the dental surface, prior to said staining, with an orally acceptable polymer or copolymer comprising a plurality of monomeric groups of formula (I) wherein (a) one of A and A' is hydrogen and the other is a moiety (X)n(R)m, (b) n in individual such moieties is independently 0 or 1, (c) linking groups X if present independently comprise an oxygen, sulfur, nitrogen, phosphorus or silicon atom, (d) where n is 0, m is 1, and where n is 1, m is independently an integer from 1 to 3 as determined by X, (e) terminal groups R are independently hydrogen or C1-18 organic radicals, and (f) M and M' are independently selected from hydrogen, alkali metal and ammonium; said polymer or copolymer having an average molecular weight of at least about 1,000.

Patent Agency Ranking