21 CFR § 872.6390 - Dental floss.

---
identifier: "/us/cfr/t21/s872.6390"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 872.6390 - Dental floss."
title_number: 21
title_name: "Food and Drugs"
section_number: "872.6390"
section_name: "Dental floss."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "H"
subchapter_name: "MEDICAL DEVICES"
part_number: "872"
part_name: "DENTAL DEVICES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 351, 360, 360c, 360e, 360j, 360 371."
regulatory_source: "52 FR 30097, Aug. 12, 1987, unless otherwise noted."
cfr_part: "872"
---


# 872.6390 Dental floss.

(a) *Identification.* Dental floss is a string-like device made of cotton or other fibers intended to remove plaque and food particles from between the teeth to reduce tooth decay. The fibers of the device may be coated with wax for easier use.

(b) *Classification.* Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to § 872.9.

[52 FR 30097, Aug. 12, 1987, as amended at 61 FR 1121, Jan. 16, 1996; 65 FR 2315, Jan. 14, 2000]