Quick facts
- Dental floss is a named Class I device in the United States at 21 CFR 872.6390.
- A manual toothbrush is a separate entry, Class I, at 21 CFR 872.6855.
- Canada names no floss: a floss pick, a floss threader or a length of floss is a non-invasive device and reaches Class I through Rule 7(1) of the Medical Devices Regulations.
- The US entry is written for dental floss; a floss pick is filed by what it does, not by its handle.
- A device that is intended to be connected to a higher-class active device takes that class under Rule 7(2)(b) in Canada.
- The regulation text cited here is current to 2026-09-21 and was last amended on 2026-06-17.
A floss pick is a length of floss held in a plastic fork. For the patient it is a convenience; for the regulator it is dental floss, and dental floss is a device. The two national rulebooks agree on the class and disagree on whether the word "floss" needs to appear in a schedule at all.
What is a dental floss pick?
It is an interdental cleaner that carries a short strand of floss on a handle so that the floss can be worked between two teeth without wrapping it around the fingers.
The cleaning action is the same as string floss: the strand is drawn across the proximal surface of a tooth, below the contact point, and the plaque is lifted away. The handle changes how the strand is held, which makes the device easier for a patient with limited dexterity and quicker for a patient who flosses at a sink. The strand itself may be waxed or unwaxed, and the floss may be a monofilament or a multifilament.
None of those variations changes what the device is for a regulator. A floss pick cleans between teeth with floss, and it contacts the mouth rather than entering it deeply. That makes it a non-invasive device in Canada and a Class I entry in the United States.
How do Canada and the United States classify dental floss and floss picks?
It is Class I on both sides, by a named entry on one and by rule on the other.
| Item | Canada | United States |
|---|---|---|
| Dental floss | Class I by Rule 7(1) | Class I, 21 CFR 872.6390 |
| Floss pick | Class I by Rule 7(1) | Class I, 21 CFR 872.6390 |
| Manual toothbrush | Class I by Rule 7(1) | Class I, 21 CFR 872.6855 |
| Floss on a powered handle | Class I by Rule 7(1) | Class I unless a powered entry applies |
| Basis named in the rulebook | Rule and use | Device entry and product code |
In the United States dental floss is named at 21 CFR 872.6390 and is Class I, with its own product code. A floss pick is filed under the same entry, because what it does is floss. A manual toothbrush is named separately at 21 CFR 872.6855, also Class I.
In Canada none of these is a named entry. A floss pick contacts the mouth without penetrating the surface of the mucosa, so it is a non-invasive device, and Rule 7(1) places all other non-invasive devices in Class I. The class is the same, and a Canadian file cites the rule and the use where a US file cites the entry.
Does a floss pick sit in a different class from string floss in Canada and the United States?
No. A floss pick and a length of string floss reach the same class on both sides of the border, and the change only begins when the cleaner is powered.
| Cleaner | Canadian basis | Canadian class | US entry | US class |
|---|---|---|---|---|
| String floss | Rule 7(1) | Class I | 21 CFR 872.6390 | Class I |
| Floss pick | Rule 7(1) | Class I | 21 CFR 872.6390 | Class I |
| Floss holder | Rule 7(1) | Class I | 21 CFR 872.6390 | Class I |
| Powered interdental cleaner | Rule 7(2)(b) if connected | Class of the connected device | Powered entry if one applies | Read from the entry |
A floss pick is not more regulated than string floss, and it is not less regulated either. The handle is a delivery method for the same strand, and neither rulebook treats the handle as a separate device. The difference that matters is at the margin: a powered interdental cleaner that connects to a higher-class active device is read together with that device in Canada under Rule 7(2)(b), and the same product is read from its own entry in the United States.
Why does the United States have a named entry for dental floss?
Because the entry predates the modern device framework and has simply been kept, and keeping it gives a US file something to cite.
The entry at 21 CFR 872.6390 is short and names dental floss as a Class I device. That is a light regulatory burden, and it is lighter than the burden of having no entry to file against. Canada takes the other route: it names few devices and reaches the class by rule. A manufacturer working in both countries therefore keeps two files that describe the same product in two different vocabularies — one by entry, one by rule.
For a clinic the point is not the paperwork. It is that "device" is not a synonym for "high risk". Dental floss, a tongue scraper and a manual toothbrush are all devices on both sides of the border, and all three sit in the lightest class that either rulebook uses.
Which consumables does a dental hygiene room restock?
A hygiene room runs on the chairside lines that surround the floss. The 3-layer paper and PE dental bibs cover patients across a working day, and the cotton rolls in a 2000-piece box keep the field dry during a clean. Where a practice monitors its own sterilisation cycle, the sterilization monitoring collection pairs with the 24-hour monitoring five-pack trial. Clinics and multi-site groups ordering at case level use the wholesale ordering page, and the B2B wholesale collection lists the lines held for institutional buyers. Reselling? become a distributor.
What does a floss pick do that string floss does not?
It changes the handling, not the cleaning, which is why the two sit in the same class and not in different ones.
String floss is wrapped around the fingers and worked by hand. A floss pick holds a short strand taut on a fork, so the patient only has to guide the strand rather than tension it. For a patient with arthritis, a tremor or limited finger movement, that difference decides whether the cleaning happens at all. For a patient in a school or workplace washroom, it decides whether it happens away from a mirror. The strand still has to reach below the contact point for the cleaning to count; the handle only makes that easier.
Nothing about the handle changes what the device is for a regulator. In the United States both a floss pick and a length of string floss are filed under the dental floss entry at 21 CFR 872.6390, and both are Class I. In Canada neither is named, and both reach Class I through Rule 7(1) because the cleaner contacts the mouth without penetrating the mucosa.
What a pick does change is the stock decision. A clinic that counsels patients on interdental cleaning has to decide whether to send them to string floss, which trains technique, or to a pick, which trades some access for adherence. That is a coaching decision rather than a regulatory one, and it is the reason both belong on the shelf. A patient who will not floss with string will often floss with a pick, and a clean proximal surface is the outcome either way.
Sources
- 21 CFR 872.6390, dental floss
- 21 CFR 872.6855, manual toothbrush
- 21 CFR 872.6865, powered toothbrush
- 21 CFR 872.6866, powered radiofrequency toothbrush
- 21 CFR 872.6300, rubber dam and accessories
- Medical Devices Regulations, SOR/98-282
- Canadian Dental Association
- Royal College of Dental Surgeons of Ontario
- ADA, science and research institute
- CCOHS, OSH answers
- Public Health Ontario, laboratory services test index
- CLSI, clinical and laboratory standards
- ISO 15189:2022, medical laboratories
- ISO 13485:2016, quality management
- ISO 14971:2019, risk management
- openFDA device classification API
- Opto, eye health library
- College of Optometrists of Ontario, standards of practice
- American Academy of Ophthalmology, eye health
- Canadian Paediatric Society, documents
A hygiene visit that is not recorded is a visit that cannot be repeated exactly. The printable chairside hygiene log is a free sheet with columns for the patient, the date, the products used and the clinician, so a recall interval is planned rather than guessed. The hygiene record generator on the same page sizes the sheet to the number of chairs a practice runs. No account and no sign-up are needed to open either one.
Products in a dental room often sit closer to an instrument cycle than they look. Ask a compliance specialist and you will get a written answer specific to your equipment and province, with the regulation or standard it is based on cited.
Related reading
- Dental Floss in Canada vs the US: Which Class Applies?
- Tongue Scrapers in Canada vs the US: Which Class Applies?
- Prophylaxis Cups in Canada vs the US: Which Rules Apply?
CliniEco Medical supplies dental, laboratory and eye care consumables of the kind described in this article. MDEL #35334. This article is written for dental, laboratory and procurement professionals and is not legal advice; the class of a device and the records kept by a practice belong to the practice and to the requirements that apply to it.
Frequently Asked Questions
Is dental floss a device in the United States?
Yes. Dental floss is a Class I device under 21 CFR 872.6390 and carries its own product code. A floss pick is filed under the same entry.
Does Canada name dental floss?
No. The Canadian schedule names very few devices. A floss pick is a non-invasive device, so Rule 7(1) of the Medical Devices Regulations places it in Class I.
Is a floss pick in a higher class than string floss?
No. Neither rulebook treats the handle as a separate device. A floss pick and a length of string floss reach Class I on both sides of the border.
What changes the class of an interdental cleaner?
A powered handle that connects to a higher-class active device. In Canada Rule 7(2)(b) gives the cleaner the class of the device it is connected to; in the United States the class is read from the entry that applies.
Why is a manual toothbrush named separately from dental floss?
Because the two do different jobs and the US framework names each on its own line. Dental floss is 21 CFR 872.6390 and a manual toothbrush is 21 CFR 872.6855, both Class I.
What should a hygiene record carry?
The patient, the date, the products used and the clinician. Recording the products is what lets a recall interval be set from what was actually done.
0 commentaire