Dentifrice compositons and abrasive systems
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United States of America Patent
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Issued Date -
Jan 12, 2006
app pub date -
Jan 5, 2005
filing date -
Jan 9, 2004
priority date (Note) -
Abandoned
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Abstract
A dentifrice composition comprising an abrasive system comprising at least one abrasive silica which may be selected from a first silica having a Radioactive Dental Abrasion (RDA) in the range 30 to 150 and a second silica an RDA in the range 100 to 300, and a crystalline aluminosilicate having an average crystallite size below 0.2 .mu.m plus an orally acceptable carrier. The content by weight of the first silica being greater than that of the second silica and the RDA of the second silica being greater than that of first silica.
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