21 CFR 872.3260 - Cavity varnish.
(a) Identification. Cavity varnish is a device that consists of a compound intended to coat a prepared cavity of a tooth before insertion of restorative materials. The device is intended to prevent penetration of restorative materials, such as amalgam, into the dentinal tissue.
Title 21 published on 2014-04-01
no entries appear in the Federal Register after this date.