Quick facts
- United States: a pit and fissure sealant and conditioner reaches the device rules through 21 CFR 872.3765, which describes "a device composed of resin, such as polymethylmethacrylate, intended for use primarily in young children to seal pit and fissure depressions (faults in the enamel) in the biting surfaces of teeth to prevent cavities".
- United States: 21 CFR 872.3765 classifies the sealant and conditioner as Class II.
- Canada: Rule 3 of Schedule 1 to the Medical Devices Regulations, SOR/98-282 provides that "all denture materials and orthodontic appliances, and their accessories, are classified as Class II" and that "all surgical or dental instruments are classified as Class I".
- Canada: a sealant is neither a denture material nor an instrument, so it is reached through Rule 7(1), which classifies "all other non-invasive devices" as Class I — the same product in a different class from the American entry.
- Canada: the term "dental material" in the regulations carries the note "[Repealed, SOR/2002-190, s. 1]", so the current text does not use that term in the rules.
- Canada: regulation text cited here is current to 2026-10-03; the American entry dates from the device classification of resin sealants.
A sealant is applied to a groove on a biting surface, and it is the least invasive thing a dental office places on a patient. It is also one of the few products where the two countries land on different classes for the same item — the United States names it and gives it a class, Canada leaves it to a general rule and the general rule gives a lower one. For a buyer building a device file, that gap is the fact worth writing down.
What exactly does the American sealant entry cover?
A resin device for sealing pits and fissures in children, and both the sealant and its conditioner.
21 CFR 872.3765 is written as one entry for two items. The identification paragraph describes "a device composed of resin, such as polymethylmethacrylate, intended for use primarily in young children to seal pit and fissure depressions (faults in the enamel) in the biting surfaces of teeth to prevent cavities". The entry is titled pit and fissure sealant and conditioner, so the etching agent used to prepare the enamel is part of the same entry rather than a separate one.
Two facts follow from the wording. The device is a resin, which is why a glass ionomer or a compomer product is read against the entry by its material. And the intended use is stated as cavity prevention in children, which is the use that places the product in the entry at all.
| Item | American entry | Class |
|---|---|---|
| Pit and fissure sealant | 21 CFR 872.3765 | Class II |
| Conditioner used with the sealant | 21 CFR 872.3765 | Class II |
| Dental floss | 21 CFR 872.6390 | Class I |
| Manual toothbrush | 21 CFR 872.6855 | Class I |
| Dental hand instrument | 21 CFR 872.4565 | Class I |
Why does the Canadian class come out differently?
Because Canada names no sealant, and the rule that catches it is the one for non-invasive devices.
Schedule 1 to the Medical Devices Regulations, SOR-98-282 sets out the classes as a set of rules rather than a list of named products. The dental rule at Rule 3 covers three things: denture materials and orthodontic appliances and their accessories in Class II, surgical or dental instruments in Class I, and latex condoms in Class II. A pit and fissure sealant is not a denture material, it is not an orthodontic appliance, and it is not an instrument. So Rule 3 does not reach it.
The rule that does reach it is Rule 7(1), which reads that "subject to subrule (2), all other non-invasive devices are classified as Class I". A sealant that is applied to the surface of a tooth without penetrating tissue is a non-invasive device, so the general rule places it in Class I. The sealant's conditioner is read the same way when it is a surface preparation rather than an instrument.
That result is the difference a buyer should note. The American file can cite an entry that names the product and states Class II. The Canadian file states instead that no entry names the product, that Rule 3 does not reach it, and that Rule 7(1) places it in Class I. The two files describe the same bottle and end on different classes.
| Item | Canada | United States |
|---|---|---|
| Named entry for a sealant | None | 21 CFR 872.3765 |
| Rule that reaches the sealant | Rule 7(1), other non-invasive devices | The entry states the class |
| Class of the sealant | Class I | Class II |
| Class of a dental instrument | Class I under Rule 3(b) | Class I under the instrument entry |
| Effect of the difference | A lower class on the Canadian side | A higher class on the American side |
Does the repealed term matter to a device file?
Yes, because a file that cites a repealed term is a file that can be questioned on its own words.
The Interpretation section of the regulations once carried a definition of "dental material", and that term now appears with the note "[Repealed, SOR/2002-190, s. 1]". A device file written from an older summary that still uses the term will describe a rule that the current text does not contain. The current Rule 3 uses "denture materials", which is a narrower phrase, and the difference changes whether a given dental product is reached by Rule 3 at all.
The material standard that sits beside the product is ISO 4049:2019, which covers polymer-based restorative materials, and the quality standard that sits over the maker of a dental material is ISO 13485:2016. The clinical reference that a practice uses is carried by the Canadian Dental Association, and the standards of practice are set by the provincial college — the Royal College of Dental Surgeons of Ontario.
What should a dental device file record for a sealant?
Five fields, and the first is the rule that was applied.
- The rule relied on. A Canadian file states that Rule 3 does not reach the sealant and that Rule 7(1) places it in Class I, rather than citing an entry that does not exist.
- The intended use. The use recorded is what decides whether the product is a non-invasive surface material or something else.
- The material. A resin sealant and a glass ionomer sealant are read against the material standard by what they are made from.
- The lot and the expiry. A sealant is a dated resin product, so both fields belong with the record.
- The reference. The entry or rule relied on, with the date the text was read.
Which consumables does an operatory restock?
An operatory that places sealants runs through the barrier and absorbency lines at every appointment. The 3-layer paper and PE dental bibs cover the patient barrier, and the 2 medium cotton rolls keep the field dry while the enamel is prepared and the sealant is placed. A practice that runs its own steriliser pairs the sterilization monitoring collection with the biological indicator 5-pack trial. For clinics and multi-site groups 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. Reselling? become a distributor.
A file built on those fields survives a question about why the Canadian class is lower than the American one, which is the question a buyer in a multi-country group is most likely to be asked.
Sources
- 21 CFR 872.3765, pit and fissure sealant and conditioner
- 21 CFR 872.4565, dental hand instruments
- 21 CFR 872.6390, dental floss
- 21 CFR 872.6855, manual toothbrush
- Medical Devices Regulations, SOR/98-282
- Health Canada, drug and health product portal
- ISO 4049:2019, polymer-based restorative materials
- ISO 9693-1:2012, metal-ceramic dental restorative systems
- ISO 6872:2015, dental ceramics
- ISO 13485:2016, medical device quality management
- ISO 14971:2019, risk management of medical devices
- ISO 11133:2014, culture media preparation
- Royal College of Dental Surgeons of Ontario
- Canadian Dental Association
- Public Health Ontario, laboratory services test index
- CCOHS, OSH answers
- openFDA device classification API
- World Health Organization, oral health
- Clinical and Laboratory Standards Institute
- Canadian Paediatric Society, clinical documents
A device file that cannot say which rule it applied is a file that has to be rebuilt for every question. The printable dental device register is a free sheet with columns for the product, the intended use, the rule relied on and the date the text was read, so the Canadian rule and the American entry sit side by side. The register generator sized to a single operatory builds the sheet from the number of products a practice stocks and the number of chairs it runs. No account and no sign-up are needed to open either one.
Where the class of a dental material or the rule that reaches it needs to be set out for a review, a written answer is worth more than a general one. Ask a compliance specialist and a written answer comes back specific to your equipment and province, with the regulation or standard it is based on cited.
Related reading
- Dental Impression Materials in Canada vs the US: Which Class Applies
- Dental Crown Materials in Canada vs the US: Which Material and Class
- Dental Hand Instruments in Canada vs the US: Which Class
CliniEco Medical supplies laboratory, eye care and dental consumables of the kind described in this article. MDEL #35334. This article is written for dental, hygiene and procurement professionals and is not legal advice; the products stocked and the records kept by a practice belong to the practice and to the requirements that apply to it.
Frequently Asked Questions
What class is a pit and fissure sealant in the United States?
Class II under 21 CFR 872.3765, which also covers the conditioner used with the sealant.
Why is a dental sealant a different class in Canada?
Schedule 1 to the Medical Devices Regulations names no sealant, Rule 3 covers denture materials and orthodontic appliances rather than a sealant, and the general rule at Rule 7(1) places other non-invasive devices in Class I.
Does the Canadian rule mention dental materials?
The current text of Rule 3 refers to denture materials and orthodontic appliances. The separate term "dental material" in the Interpretation section carries the note repealed by SOR/2002-190, so a file should not rely on that term.
Is a dental instrument in the same class as a sealant in Canada?
A surgical or dental instrument is Class I under Rule 3(b), which matches the class a sealant takes under Rule 7(1), although the two are reached by different rules.
Which standard covers the material a sealant is made from?
ISO 4049:2019 covers polymer-based restorative materials, which is where a resin sealant's material requirements sit.
Which records should a dental device file keep for a sealant?
Record the rule relied on, the intended use, the material, the lot and expiry, and the entry or rule with the date the text was read.
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