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General product and regulatory information only. This page is not medical or dental advice, and it does not describe any clinical procedure.
Short answer
An orthodontic archwire is the wire that runs along the dental arch in fixed orthodontic appliances. In US regulation it is listed by FDA as “Wire, Orthodontic” under product code DZC, a Class I device that is exempt from 510(k) premarket notification and that falls under 21 CFR 872.5410. FDA also recognizes two consensus standards for orthodontic wires: ISO 15841 and ADA/ANSI Standard No. 32.
Definition and scope
“Archwire” is the trade name for the wire component. It is not a separate regulatory category: FDA’s classification database names the device “orthodontic wire” and files it under the regulation for “orthodontic appliance and accessories.” That regulation, 21 CFR 872.5410, describes the group as devices “intended for use in orthodontic treatment” and “affixed to a tooth so that pressure can be exerted on the teeth.” (FDA product classification database and eCFR, checked 2026-10-30.)
This page covers what the product is, how it is identified in US regulation and on a manufacturer’s listing, and which pages on CASRAI cover the parts it works with. It does not cover wire selection for a patient, sequencing of wires during treatment, or any chairside technique.
How the regulatory record identifies an archwire
The FDA product classification entry for code DZC gives the following. Each row below is taken from that entry and from the openFDA device classification data for the same code (last updated 2026-10-19), checked 2026-10-30.
| Field | Value in the FDA record |
|---|---|
| Device name | Wire, Orthodontic |
| Product code | DZC |
| Regulation number | 21 CFR 872.5410 (orthodontic appliance and accessories) |
| Review panel | Dental |
| Device class | Class I (general controls) |
| Premarket notification | Exempt from 510(k), subject to the limitations in 21 CFR 872.9 |
| Implant | No |
| Life-sustaining or life-supporting | No |
| Recognized consensus standards | ISO 15841 (2014, with Amendment 1, 2020), “Dentistry – Wires for use in orthodontics”; ADA/ANSI Standard No. 32-2024, “Dentistry – Orthodontic Wires” |
Two practical points follow from this record. First, “510(k) exempt” does not mean unregulated: FDA states that a Class I exemption does not remove the requirement to register the establishment, and Class I devices remain subject to general controls. Second, because the wire has no regulation of its own, a supplier’s regulatory statement for an archwire will normally cite the shared regulation number 872.5410 and the product code, not a wire-specific rule.
How an archwire appears on a manufacturer listing
Manufacturer listings describe the wire with a handful of attributes. The example below is the 3M Unitek Nitinol Classic Archwire page on the Solventum site (checked 2026-10-30). The maker describes the wire as nitinol (nickel titanium), developed as an alternative to stainless steel archwires, and describes it as combining linear elasticity with the bendability of high-strength steel. The maker also lists “40% the forces of stainless steel”; this is the manufacturer’s own claim and is not an independent measurement. The sample listing shows a .018 size, lower arch, standard form, 10 wires per pack.
| Attribute | What the sample listing shows |
|---|---|
| Material | Nitinol (nickel titanium) |
| Wire size | .018 |
| Arch | Lower |
| Form | Standard |
| Pack quantity | 10 |
A reader checking any archwire listing can therefore compare it against five items taken from that example (material, size, arch, form, pack quantity) plus the regulatory identifiers in the previous section (product code DZC, regulation 872.5410). The listing is only the product description; whether a given wire is suitable for a given patient is a clinical decision for the treating orthodontist.
Where it fits with other orthodontic components
The archwire is one part of a fixed appliance. CASRAI has separate explainers for the parts it works with:
- Orthodontic bracket: the attachment that holds the wire against the tooth.
- Orthodontic band: another tooth-mounted orthodontic component.
- Orthodontic separators: a related orthodontic accessory.
- Orthodontic retainer types: a related orthodontic appliance type.
Where it matters for clinics and supply decisions
For a clinic or a procurement reader, the useful facts are the ones in the two tables above. The regulatory identifiers (DZC, 872.5410, Class I) tell you how FDA categorizes the product, and the two recognized standards, ISO 15841 and ADA/ANSI 32, are the documents FDA lists for orthodontic wires. FDA’s recognition of a standard does not by itself show that a particular product conforms to it; conformity is a statement the manufacturer makes about its own product, so the manufacturer’s documentation is where that statement is found. The listing attributes (material, size, arch, form, pack quantity) identify the exact item.
Common misunderstandings
The bracket and the wire are the same part”
They are not. The bracket is the attachment fixed to the tooth; the archwire is the wire that engages it. Both fall under the same broad FDA regulation, which is part of why the terms get mixed up in supplier catalogues.
Class I exempt means no FDA oversight”
Exemption applies to premarket notification only. General controls and establishment registration still apply, and the exemption is subject to the limitations in 21 CFR 872.9.
A manufacturer’s force claim is a standard value”
A figure such as “40% the forces of stainless steel” is a claim by that manufacturer about its own product. It is not a value set by FDA or by the consensus standards named above.
FAQ
What is an orthodontic archwire?
It is the wire component of a fixed orthodontic appliance. FDA’s database lists it as “Wire, Orthodontic,” product code DZC.
How does FDA classify orthodontic archwires?
As Class I devices under 21 CFR 872.5410 (orthodontic appliance and accessories), exempt from 510(k) premarket notification, subject to the limitations in 21 CFR 872.9.
Which standards apply to orthodontic wires?
FDA’s entry for DZC lists ISO 15841 (2014, with Amendment 1, 2020) and ADA/ANSI Standard No. 32-2024 as recognized consensus standards.
What are archwires made of?
Materials vary by product. One manufacturer example, the 3M Unitek Nitinol Classic Archwire, is made of nitinol (nickel titanium) and is presented by its maker as an alternative to stainless steel archwires.
How is an archwire different from a bracket?
The bracket is the attachment on the tooth and the archwire is the wire that runs through the brackets. See our bracket explainer.
Sources
- U.S. Food and Drug Administration, Product Classification, product code DZC (Wire, Orthodontic): accessdata.fda.gov, checked 2026-10-30.
- openFDA device classification API, product code DZC, data last updated 2026-10-19: api.fda.gov, checked 2026-10-30.
- 21 CFR 872.5410, Orthodontic appliance and accessories: ecfr.gov, checked 2026-10-30.
- Solventum (3M Unitek), Nitinol Classic Archwire product page: solventum.com, checked 2026-10-30 (manufacturer statements, attributed as such).
