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grain size for toothpaste
I am trying to make a toothpaste. What is the maximum allowable grain size for the carrier material (silica / hydrated silica / kalolin clay / bentonit clay) so that we don’t feel like there is sand between our teeth while brushing.
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6 Replies
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Not only that but how are you going to verify how abrasive it is to tooth enamel? When you get down to the dentine you will find out…
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I want the least abbrasive material. I am more concerned with the active ingredients in the toothpaste. I will use many plant extracts. But I need to use a material in order to obtain the paste form and carry the herbal ingredient. Kaolin and bentonite clay and silica and hydrated silica are already used in the toothpaste widely. But which one should I try? What grain size? Fine clay dust are OK? I am looking answers to those questions and looking for recommandations.
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Well there is one I might suggest. Nepheline Syenate. It is completely inert, a mineral used in ceramic glazes. I had some here from Starcast a while back. As I recall it was very fine indeed, 100 micron particle size. I had to wear a mask while handling it in case I inhaled it.
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It is 20uM for toothpaste
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there are grades of silica specifically sold for use in dental care - they are very fine indeed, and even the most abrasive grades don’t feel grainy
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Where do you get fluoride salts?
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