510(k) Predicate Finder
Find potential predicate devices for your 510(k) submission. Enter a K-number to find all clearances with the same product code, a three-letter product code to browse clearances directly, or search by device name.
Cushion, Pad, Denture, Wax Impregnated Cotton, Over The Counter
Dental
The OTC Wax-Impregnated Cotton Denture Cushion or Pad is a dental accessory device applied by the patient to the base or inner surface of a denture before insertion to improve fit and comfort, intended to be discarded after one day's use. It is classified as FDA Class 1 (General Controls), under product code NKJ and regulation 21 CFR 872.3540 in the Dental specialty. The device is not GMP exempt, not an implant, and not life-sustaining.
No 510(k) clearances found for "NKJ". Try a different K-number, product code, or device name.
What is a Predicate Device?
A predicate device is a legally marketed device that a new 510(k) applicant uses to demonstrate substantial equivalence. The FDA's 510(k) pathway requires manufacturers to show that their device has the same intended use and similar technological characteristics as one or more predicate devices already cleared for commercial distribution.
Finding the right predicate is a critical step in 510(k) strategy. Manufacturers typically search for cleared devices with the same FDA product code, which groups devices by their intended use and regulatory classification. This tool helps you identify potential predicates by browsing all clearances within a product code.
Note that predicate devices must be legally marketed — they cannot be devices that were cleared but never commercialized, or devices subject to a mandatory recall. The determination of substantial equivalence considers intended use, technological characteristics, and performance data.