A gel composition exhibiting improved stand-up and efficacy in treating dentine hypersensitivity which composition contains about 0.3 to about 1.0% by weight SnF.sub.2, about 87 to about 97% by weight anhydrous glycerine and about 2.0 to about 10% by weight of a polyethylene glycol having...http://www.google.se/patents/US5690912?utm_source=gb-gplus-sharePatent US5690912 - SnF.sub.2 gel of improved stand-up and efficacy in the treatment of dentine hypersensitivity 