# K890464: Zenith 40% Phosphoric Acid Gel

- Pathway: 510(k) (Traditional)
- Applicant: Foremost Dental Mfg., Inc.
- Decided: Feb 13, 1989 after 14 days
- Product code: EBC (Sealant, Pit And Fissure, And Conditioner)
- Device class: 2
- Regulation: 21 CFR 872.3765
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
2 later devices descend from it; 2 cite it directly.
0 of 3 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K131248: Etch Gel (2013), 0 descendants of its own
- K964179: Super-Dent Etching Gel, Super-Dent Micro-Etch Gel and Super-Dent Etching Gel Syringe Tips (1997), 0 descendants of its own

Source page: https://510kreport.com/device/K890464
Methodology: https://510kreport.com/methodology