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Tricalcium phosphate (TCP)

 

Tricalcium phosphate (TCP) appears in some formulations for sensitive teeth. The form of tricalcium phosphate that is commercially available is the same hydroxyapatite, which is also the mineral form of teeth. The mode of action of TCP in this type of toothpaste is likely through entry of these extremely fine particles into the tubules in the teeth, partially filling these tubules and protecting the nerves. Formulations with TCP cannot contain fluoride for caries protection because of chemical compatibilities.

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