---
kind: "section"
citation: "21 C.F.R. § 872.3250"
title: "21"
number: "872.3250"
heading: "Calcium hydroxide cavity liner."
url: "https://uscodex.org/cfr/21/872.3250"
---

# §872.3250. Calcium hydroxide cavity liner.

- (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.

## Notes

### Authority

Authority: 21 U.S.C. 351, 360, 360c, 360e, 360j, 360 l, 371.

### Source

Source: 52 FR 30097, Aug. 12, 1987, unless otherwise noted.