Quick facts
- United States: the concentration of a fluoride product is fixed by dosage form, not by preference. 21 CFR 355.10 sets sodium fluoride dentifrice at 0.188 to 0.254 percent with an available fluoride ion concentration of at least 650 ppm, in a 850 to 1,150 ppm total fluorine product.
- United States: the preventive treatment gel has its own figure. For stannous fluoride the monograph sets a preventive treatment gel at 0.4 percent anhydrous glycerine gel, and a treatment rinse at a 0.1 percent aqueous solution.
- United States: package size is limited by total fluorine. 21 CFR 355.20 caps dentifrices at 276 mg total fluorine per package and preventive treatment gels and treatment rinses at 120 mg.
- United States: professional office products are carved out. The package limits do not apply to anticaries products "marketed for professional office use only and labeled in accord with § 355.60."
- Canada: the professional position is set out by the profession. The Canadian Dental Association states that it "recognizes and supports the professional topical applications of fluoride gels, foams and varnishes in the prevention of dental caries for individuals at risk."
- Canadian product labelling and the American monograph both apply to the product in the carton; the clinical decision about who receives a professional application belongs to the practitioner and to provincial requirements.
Fluoride is the one dental material that is a drug in some forms, a device component in others, and a consumer product in most. Buyers meet it as a paste, a varnish, a foam, a gel or a rinse, and each of those words points to a different concentration range, a different labelling obligation and, in the United States, a different line in a monograph. This article sets out how the two countries organise the same family of products, and where the professional and self-applied lines fall.
How does fluoride application differ between Canada and the United States?
The American route writes the product into an over-the-counter monograph and then writes an exemption for professional use into the middle of it. The Canadian route does not maintain an equivalent monograph and relies on professional guidance for the same distinction.
Start with the scope. 21 CFR 355.1 states that an over-the-counter anticaries drug product in a form suitable for topical administration to the teeth is generally recognized as safe and effective and is not misbranded if it meets each condition in that part and each general condition in 21 CFR 330.1. That sentence defines the whole category as a topical product applied to the teeth.
Now look at how the monograph handles the forms. For sodium fluoride, 21 CFR 355.10(a) sets dentifrices at 850 to 1,150 ppm theoretical total fluorine in a gel or paste dosage form, with sodium fluoride at 0.188 to 0.254 percent and an available fluoride ion concentration of at least 650 ppm, and it adds a separate specification for powdered dentifrice containing sodium bicarbonate. For treatment rinses it lists several acidulated phosphate fluoride solutions and sodium fluoride solutions with their own concentrations and pH ranges. For stannous fluoride, 21 CFR 355.10(c) sets dentifrice, preventive treatment gel and treatment rinse at different percentages again.
The packaging rule then does something unusual. 21 CFR 355.20(a) limits dentifrice packages to 276 mg total fluorine, and preventive treatment gel and treatment rinse packages to 120 mg, and then exempts products marketed for professional office use only. The monograph is a consumer document that contains, inside it, the recognition that professional use is a different case.
Canada does not organise the category this way. The professional split that a Canadian clinic works to is expressed as a clinical position rather than as a labelling exemption. The Canadian Dental Association states that it recognizes and supports the professional topical applications of fluoride gels, foams and varnishes in the prevention of dental caries for individuals at risk, and it adds a specific caution that fluoride mouth rinsing is not recommended for children under 6 years of age.
| Item | Canada | United States |
|---|---|---|
| Framework | Professional guidance and provincial requirements | 21 CFR part 355 anticaries monograph |
| Where the concentration lives | Product labelling and clinical guidance | 355.10, by active ingredient and dosage form |
| Professional versus self-applied | Drawn by clinical position and product labelling | Drawn by the 355.20(a)(3) professional office exemption |
| Package limit on a consumer dentifrice | No federal equivalent in the monograph | 276 mg total fluorine per package |
| Package limit on a preventive gel or rinse | No federal equivalent in the monograph | 120 mg total fluorine per package |
| Child age caution | CDA does not recommend fluoride mouth rinsing under 6 years | Monograph and labelling conditions apply to the product |
Which forms and concentrations apply to each fluoride product?
The table below is the working reference for a clinic, and the figures are the monograph figures rather than a clinical recommendation.
- Sodium fluoride dentifrice. 850 to 1,150 ppm theoretical total fluorine, sodium fluoride 0.188 to 0.254 percent, available fluoride ion at least 650 ppm in a gel or paste dosage form.
- Stannous fluoride dentifrice. 850 to 1,150 ppm total fluorine, stannous fluoride 0.351 to 0.474 percent.
- Preventive treatment gel. Stannous fluoride 0.4 percent in an anhydrous glycerine gel.
- Treatment rinse. Stannous fluoride concentrated solution, diluted with water before use to a 0.1 percent aqueous solution; sodium fluoride and acidulated phosphate fluoride rinses are listed separately with their own concentrations and pH.
- Powdered dentifrice. A separate specification applies, and 21 CFR 355.20(b) requires a tight container to limit moisture contamination.
- Labelling. 21 CFR 355.50 requires a statement of identity using the dosage form, and an indication worded as an aid in the prevention of dental cavities, decay or caries.
The Canadian reference point is not a concentration table but a scope statement. The Canadian Dental Association position supports professional topical application of gels, foams and varnishes for individuals at risk, which is the professional side of the line, and it addresses the self-applied rinse separately by age.
| Product form | Key American figure | Canadian reference point |
|---|---|---|
| Sodium fluoride dentifrice | 0.188 to 0.254 percent; at least 650 ppm available fluoride ion | Product labelling; professional guidance |
| Stannous fluoride dentifrice | 0.351 to 0.474 percent; 850 to 1,150 ppm total fluorine | Product labelling; professional guidance |
| Preventive treatment gel | Stannous fluoride 0.4 percent anhydrous glycerine gel | CDA supports professional gels, foams and varnishes |
| Treatment rinse | Diluted to a 0.1 percent aqueous solution | CDA does not recommend rinsing under 6 years |
| Powdered dentifrice | Separate specification; tight container required | Product labelling |
| Professional office product | Exempt from the 355.20(a) package limits when labelled per 355.60 | Professional application supported for at-risk individuals |
What does ISO 11609 cover on a fluoride toothpaste?
ISO 11609:2017 specifies requirements for the physical and chemical properties of dentifrices and provides guidelines for suitable test methods, and it also specifies requirements for the marking, labelling and packaging of dentifrices. Its scope is drawn narrowly: it applies to dentifrices, including toothpastes, destined to be used by consumers on a daily basis with a toothbrush to promote oral hygiene.
That scope statement is the reason the standard cannot be used as a specification for a professional fluoride product. A professional varnish, foam or gel applied in the chair is not a consumer dentifrice used daily with a toothbrush, and the standard says so by describing what it covers. A clinic that writes ISO 11609 into a purchase specification for a consumer toothpaste has chosen a relevant standard; a clinic that writes it for a professional fluoride varnish has chosen the wrong instrument, and the concentration figures for a professional product come from its own labelling instead.
What should a clinic record for a fluoride application?
Six records, and the last one is the one that most clinics omit.
- The product identity. The exact product name and dosage form, because in the United States the form is what fixes the concentration range.
- The concentration on the label. The percentage of active ingredient and the total or available fluoride figure the label states, kept with the product rather than remembered.
- The professional or consumer status. Whether the product is labelled for professional office use, because that line decides whether the American package size limits apply.
- The age check. Whether the patient is in the group for which the product form is indicated, and the age-related caution the profession applies to rinses.
- The lot and expiry. Which lot was applied to which patient, which is the record that answers a product notice.
- The application note. Which surfaces received the product, the technique used and the interval the practice applies, so the entry supports a recall interval rather than only a billing code.
Which consumables does a fluoride appointment consume?
A professional fluoride appointment is a chairside set rather than a single product. For clinics buying at case level, the wholesale ordering page sets out account and case terms and the B2B wholesale collection lists the lines held for institutional buyers. The three layer dental bibs and the cotton rolls cover the chairside barrier and moisture control, and clinics that also run a sterilizer can pair the sterilization monitoring collection with the biological indicator 5-pack trial.
Sources
- 21 CFR 355.1, scope of the anticaries drug products for over-the-counter human use
- 21 CFR 355.10, anticaries active ingredients
- 21 CFR 355.20, packaging conditions
- 21 CFR 355.50, labelling of anticaries drug products
- 21 CFR 355.60, professional labelling
- 21 CFR 330.1, general conditions for general recognition as safe and effective
- Canadian Dental Association position statement on fluoride
- Canadian Dental Association
- ISO 11609:2017, dentistry, dentifrices
- ISO 28399:2021, external tooth whitening products
- ISO 14971:2019, risk management of medical devices
- ISO 10993-1:2018, biological evaluation of medical devices
- Royal College of Dental Surgeons of Ontario, standards and guidelines
- Public Health Ontario, infectious diseases guidance
- American Dental Association, fluoride topical and systemic supplements
- openFDA device classification API
- openFDA drug labelling API
- FDA device classification database
- World Health Organization, oral health fact sheet
- Health Canada, medical devices
Print-ready companion: the free sterilization log sheet is the page a dental operatory’s instrument cycles are written onto each day, and it prints with no account and no email.
The tray is not the only thing that has to be recorded. The sterilization log generator prints a dated cycle sheet for the instruments and trays that went through the sterilizer that day.
Not sure how this applies to your own setup? Ask a compliance specialist — you’ll get a written answer specific to your equipment and province, with the regulation or standard it is based on cited.
Related reading
- Fluoride Varnish in Canada vs the US: Which Rules Govern Use
- Stannous Fluoride in Canada vs the US: Which Form and Rules
- Prophylaxis Paste and Fluoride Polish in Canada vs the US: Which Rules
CliniEco Medical supplies dental, eye care and laboratory consumables of the kind described in this article. MDEL #35334. This article is written for dental, procurement and practice-management professionals and is not clinical guidance; the decision to apply fluoride, the product chosen for a patient and the recall interval belong to the practitioner and to the requirements that apply to the practice.
Frequently Asked Questions
What concentration does the American monograph set for fluoride toothpaste?
For sodium fluoride, 0.188 to 0.254 percent in a 850 to 1,150 ppm total fluorine dentifrice, with an available fluoride ion concentration of at least 650 ppm. For stannous fluoride, 0.351 to 0.474 percent in the same total fluorine range, with a separate available fluoride floor where the abrasive is calcium pyrophosphate.
What are the package size limits for fluoride products in the United States?
21 CFR 355.20 limits dentifrice packages to 276 mg total fluorine and preventive treatment gel and treatment rinse packages to 120 mg. Products marketed for professional office use only and labelled in accordance with 21 CFR 355.60 are exempt from those limits.
What does the Canadian Dental Association say about professional fluoride?
The CDA states that it recognizes and supports the professional topical applications of fluoride gels, foams and varnishes in the prevention of dental caries for individuals at risk, and it states that fluoride mouth rinsing is not recommended for children under 6 years of age.
Does ISO 11609 apply to a professional fluoride varnish?
No. ISO 11609:2017 covers the physical and chemical properties, marking, labelling and packaging of dentifrices, including toothpastes destined to be used by consumers on a daily basis with a toothbrush. A professionally applied varnish, foam or gel is outside that scope.
How is a professional fluoride product different from a consumer one in the United States?
By labelling and by the package size exemption. A product marketed for professional office use only and labelled under 21 CFR 355.60 is not subject to the 355.20(a) total fluorine package limits that apply to consumer dentifrices, gels and rinses.
What should be recorded for each fluoride application?
The product name and dosage form, the concentration stated on the label, whether the product is labelled for professional office use, the age of the patient against the indication for that form, the lot and expiry used, and the surfaces treated with the technique and interval the practice applies.
0 commentaire