Written and maintained by CASRAI Editorial Board
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General product and regulatory information for lab and clinic staff. It is not medical or clinical advice and does not describe how to perform any procedure.
Short answer
Dental polishing paste, called prophylaxis paste in regulatory records, is a paste containing an abrasive that is intended to remove debris from the teeth and is applied with a handpiece attachment called a prophylaxis cup. In the United States it is a Class I device under 21 CFR 872.6030, exempt from 510(k) premarket notification, with FDA product code EJR.
Definition and scope
The FDA regulation titled “Oral cavity abrasive polishing agent” defines the device as “a device in paste or powder form that contains an abrasive material, such as silica pumice, intended to remove debris from the teeth.” It adds that the abrasive polish is applied to the teeth by a handpiece attachment (prophylaxis cup). The regulation was first issued in 1987 (52 FR 30097) and amended in 1994 and 2001.
Three points follow directly from that text. The regulation covers pastes and powders under one device name. The abrasive is the defining ingredient. And the intended use is removing debris, not delivering a treatment.
How it is used in practice
The regulation names the delivery route: a prophylaxis cup on a handpiece. That makes a polishing paste one part of a small equipment chain rather than a stand-alone product. The paste is the consumable; the cup or disposable prophy angle carries it; the handpiece drives it. Powder-form agents, which the same regulation covers, are used through a different device, described in our guide to the dental air polisher.
What makes up a paste? A peer-reviewed in-vitro study in the European Journal of Dentistry (2012) states that commercially available prophylaxis pastes are typically a mixture of binder, humectant (to retain moisture and stabilize the preparation), coloring agent, preservatives, fluoride, flavoring, and a range of abrasive grades from coarse to fine.
Types and related concepts
Abrasive grades
The same study sorts the abrasives in prophylaxis pastes into three categories. The particle-size ranges below are reproduced as the paper prints them; the ranges overlap, so treat them as the paper’s categories, not as a manufacturer standard.
| Grade (as categorized in the study) | Particle size printed in the paper |
|---|---|
| Fine | 1-45 μm |
| Medium | 74-105 μm |
| Coarse | 74-177 μm |
Paste, powder, cup and handpiece: where each sits
| Item | What the regulation and records say |
|---|---|
| Polishing paste | Abrasive agent in paste form; Class I, 510(k)-exempt, product code EJR (21 CFR 872.6030; openFDA classification record). |
| Polishing powder | Covered by the same regulation and the same product code. openFDA 510(k) records under EJR include an air-polishing prophylaxis powder (K171189, 2017). |
| Prophylaxis cup | Named in the regulation as the handpiece attachment that applies the polish. |
| Handpiece | The drive unit the cup attaches to; see our guide to dental handpiece types. |
Where it matters for labs, clinics and supply decisions
Regulatory identity
openFDA lists product code EJR as “Agent, Polishing, Abrasive, Oral Cavity”, device class 1, regulation number 872.6030, review panel Dental, and neither an implant nor life-sustaining. A Class I device that is exempt from 510(k) does not need an individual premarket clearance, so a supplier’s product page showing no 510(k) number is not by itself a gap. Records that do appear under EJR include Nupro Sensodyne Prophylaxis Paste with NovaMin (K121698, 2012) and Butler Calci-Flor Prophylaxis Paste (K102053, 2011). The exemption is subject to the limitations in 21 CFR 872.9. For how classes and pathways fit together, see our guide to FDA device classification, 510(k) and PMA and the 510(k) overview.
Surface-dependent abrasion
The 2012 study concluded that these abrasives “can increase the roughness of the dental hard tissues as well as the restoration surfaces, but are necessary for effective plaque and stain removal.” In that in-vitro comparison, porcelain and enamel showed the lowest roughness differences, while composites and dentin were more affected. This is a laboratory finding about test materials, not a recommendation for any patient or procedure, and the choice of agent in a clinic remains a clinical decision for the treating professional.
Common misunderstandings
- “Every paste needs its own FDA clearance.” Not under this regulation: the device type is Class I and exempt from premarket notification, within the limits of 21 CFR 872.9.
- “A paste and a powder are different device types.” In the regulation they are one device, “in paste or powder form”, sharing product code EJR.
- “Abrasive means harmless to everything.” The cited study found that the abrasives can roughen hard tissue and restoration surfaces, and that the effect varied by material.
- “The paste does the polishing alone.” The regulation describes the polish as applied by a prophylaxis cup on a handpiece; the paste is one component of that chain.
FAQ
What is dental polishing paste?
It is a paste containing an abrasive material, intended to remove debris from the teeth and applied by a prophylaxis cup on a handpiece (21 CFR 872.6030). In regulatory records it is called an oral cavity abrasive polishing agent.
What FDA class is dental polishing paste?
Class I (general controls), exempt from 510(k) premarket notification subject to the limitations in 21 CFR 872.9, with product code EJR.
What is in a prophylaxis paste?
According to the 2012 European Journal of Dentistry study, a binder, humectant, coloring agent, preservatives, fluoride, flavoring and abrasives ranging from coarse to fine grades.
What abrasive grades do pastes come in?
The same study categorizes them as fine (1-45 μm), medium (74-105 μm) and coarse (74-177 μm), as printed in the paper.
Is a polishing paste the same device as a polishing powder?
Under the regulation, yes: it covers a device “in paste or powder form”, and both share product code EJR.
Sources
- U.S. Code of Federal Regulations, 21 CFR 872.6030, Oral cavity abrasive polishing agent: law.cornell.edu/cfr/text/21/872.6030 (checked 2026-10-31).
- FDA device classification database via openFDA, regulation number 872.6030, product code EJR: api.fda.gov classification query (checked 2026-10-31). 510(k) records under EJR: api.fda.gov 510(k) query for EJR (checked 2026-10-31).
- “Influence of a prophylaxis paste on surface roughness of different composites, porcelain, enamel and dentin surfaces,” European Journal of Dentistry, 2012, PMC3252807: PMC3252807 (checked 2026-10-31).
