A single phase whitening dentifrice that includes (i) a whitening agent selected from the group consisting of hydrogen peroxide, a bound peroxide and a solid peroxide (ii) an abrasive and (iii) a substantially anhydrous orally acceptable carrier, for example, polyethylene glycol. The bound peroxide may be hydrogen peroxide and a polymer and/or any peroxide compound and porous cross-linked polymer, such as polymers of polyvinyl pyrrolidone, polyacrylates, a polymethacrylates, and a polyitaconates. The solid peroxide may be sodium perborate or urea peroxide. Also provided are methods of whitening the tooth surfaces by contacting the surface with the composition.一種單相美白潔牙劑,包括(i)一種美白劑,選自由過氧化氫、結合之過氧化物及固態過氧化物所成之組群中(ii)一種研磨劑及(iii)一種實質上無水之口部可接受載劑,例如聚乙二醇。結合之過氧化物可為過氧化氫和一種聚合物及/或任何過氧化物和一種多孔交聯聚合物,諸如聚乙烯吡咯啶酮、聚丙烯酸酯、聚甲基丙烯酸酯與聚分解烏頭酸酯之聚合物。固態過氧化物可為過硼酸鈉或過氧化脲。亦提供藉將表面與組成物接觸之美白牙齒表面的方法。
