Calcium hydroxide cavity liner.
21 C.F.R. § 872.3250
in effectEffective: 2024-07-01(a) Identification. A calcium hydroxide cavity liner is a device material intended to be applied to the interior of a prepared cavity before insertion of restorative material, such as amalgam, to protect the pulp of a tooth.
(b) Classification. Class II.
Source: eCFRURL: https://www.ecfr.gov/api/versioner/v1/full/2024-07-01/title-21.xmlFetched: 7/26/2026
