# K063703: Citric Acid 20% Solution, Model 329

- Pathway: 510(k) (Special)
- Applicant: Ultradent Products, Inc.
- Decided: Dec 21, 2006 after 8 days
- Product code: KJJ (Cleanser, Root Canal)
- Device class: U
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 1 generation back to K032627 (2003). 1 ancestor in all.
2 later devices descend from it; 2 cite it directly.
0 of 4 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K032627: Ultradent Citric Acid 10% Solution, Ultradent Products, Inc. (2003) Summary page 1.

## Most influential descendants
- K241354: Sealer Solvent (2024), 0 descendants of its own
- K123538: Epien Root Canal Cleanser (2013), 0 descendants of its own

## Indications for use
Citric Acid 20%, a root canal cleanser, is intended to etch root canal walls just prior to obturation to allow an optimum seal.

Source page: https://510kreport.com/device/K063703
Methodology: https://510kreport.com/methodology