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 Concept

# Ledge Formation

## Definition

An artificial irregularity in the canal wall created when an instrument stops following the original path, often after loss of patency. A ledge can block apical access and is usually addressed with a pre-curved small hand file.

## Clinical Guides

[Complications & Troubleshooting](https://endo-guide.app/complications)

## 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)

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