[Back to Glossary](https://endo-guide.app/glossary)

 Concept

# EDTA

## Definition

Ethylenediaminetetraacetic acid, a chelating agent used to remove the inorganic smear layer and soften calcified dentin. It is typically used as a final rinse, alternating with sodium hypochlorite.

## Clinical Guides

[Irrigation Protocols](https://endo-guide.app/irrigation)

## Related Terms

[Taper](https://endo-guide.app/glossary/taper)[Tip Size](https://endo-guide.app/glossary/tip-size)[Cyclic Fatigue](https://endo-guide.app/glossary/cyclic-fatigue)[Torsional Resistance](https://endo-guide.app/glossary/torsional-resistance)[Glide Path](https://endo-guide.app/glossary/glide-path)[Working Length](https://endo-guide.app/glossary/working-length)

---

Canonical HTML: https://endo-guide.app/glossary/edta · Agent guide: https://endo-guide.app/llms.txt