Method for inhibiting chemical staining of teeth

Details Method for inhibiting chemical staining of teeth Method for inhibiting chemical staining of teeth

A - Human Necessities

61

K

A61K 8/81 (2006.01) A61K 8/22 (2006.01) A61Q 11/00 (2006.01) C08L 43/02 (2006.01)

Patent

CA 2569264

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.

Il est prévu un procédé pour inhiber la coloration chimique d~une surface dentaire consistant à mettre en contact la surface dentaire, avant ladite coloration, avec un polymère acceptable oralement ou bien un copolymère comprenant une pluralité de groupes monomères de la formule (I) où (a) un élément de A et A' est de l~hydrogène et l~autre est un groupement (X)¿n?(R)¿m?, (b) n dans de tels groupements individuels est indépendamment 0 ou 1, (c) des groupes de liaison X s~ils sont présents, comprennent indépendamment un atome d~oxygène, de soufre, d~azote, de phosphore ou de silicium, (d) lorsque n est 0, m est 1, et lorsque n est 1, m est indépendamment un nombre entier entre 1 et 3 comme cela est déterminé par X, (e) les groupes terminaux R sont indépendamment de l~hydrogène ou des radicaux organiques C¿1-18?, et (f) M et M' sont sélectionnés indépendamment parmi l~hydrogène, un métal alcalin et l~ammonium; ledit polymère ou le copolymère ayant un poids moléculaire moyen d~au moins environ 1.000.

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