PMID: 11908402Mar 23, 2002Paper

Treating hypersensitivity with fluoride varnish

Compendium of Continuing Education in Dentistry
A Gaffar

Abstract

Dentinal hypersensitivity results when stimulation causes the fluid in open dentinal tubules to undergo pressure changes, which activates mechanoreceptor nerves and results in pain. Treatment with fluoride varnish forms a protective layer of calcium fluoride that prevents this fluid flow, thereby reducing dentinal sensitivity.

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