---
kind: "section"
citation: "21 C.F.R. § 872.3660"
title: "21"
number: "872.3660"
heading: "Impression material."
url: "https://uscodex.org/cfr/21/872.3660"
---

# §872.3660. Impression material.

- (a) **Identification.** Impression material is a device composed of materials such as alginate or polysulfide intended to be placed on a preformed impression tray and used to reproduce the structure of a patient's teeth and gums. The device is intended to provide models for study and for production of restorative prosthetic devices, such as gold inlays and dentures.
- (b) **Classification.** Class II (Special Controls).

## Notes

### Amendments

[52 FR 30097, Aug. 12, 1987, as amended at 68 FR 19738, Apr. 22, 2003]

### 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.

### Amendments

[52 FR 30097, Aug. 12, 1987, as amended at 68 FR 19738, Apr. 22, 2003]