| 摘要 |
The invention relates to oral compositions providing improved cleaning of teeth. The compositions comprise a cleaning silica, having a particle size ranging from 8 to 14 mu , an oil absorption ranging from 60 to 120 cm<3>/100 g, and a mercury intrusion (HGI) void volume of 1.0 to 4.0 cm<3>/g; the silica, when formulated into a dentifrice, having a Pellicle Cleaning Ratio (PCR) of from 70 140 and a Radioactive Dentin Abrasion (RDA) value of from 60 to 130, wherein the ratio of the PCR to the RDA is at least 1.1. The compositions further comprise a phosphate ester of myo-inositol, such as phytic acid, or a salt thereof. |
