Abstract: Liquid dentifrice compositions are provided which give improved cleaning performance and flavour display when used in the small amounts that can be dispensed onto a typical electric toothbrush head. The liquid dentifrice has a viscosity of less than about 500 Pa·s at 0.1 s?1 at 25° C. Representative compositions include greater than about 2% by weight of a surfactant; greater than about 1.2% flavour and greater than 50% liquid carrier materials, including controlled amounts of water and humectants, or alternatively polyoxyethylene thickeners.

Abstract: The invention comprises the use of oral compositions of defined rheological characteristics in oral treatment systems, especially a hand-held electric toothbrush, comprising a reservoir and means for pumping the oral composition from the reservoir to an applicator such as a toothbrush head. Pumpable oral compositions having good stand-up on a brush head are also provided.

Abstract: The present invention relates to antimicrobial oral compositions comprising a water-soluble zinc salt wherein a surfactant selected from alkali metal or ammonium salts of alkyl sulfoacetate, dialkyl sulfosuccinate, dialkyl sulfosuccinamate; and mixtures thereof; is used in an amount effective to reduce the astringency of the zinc salt.