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 Concept

# Taper

## Definition

The rate of increase in file diameter from tip to shaft, expressed as a percentage per millimeter. A .06 taper means the diameter increases 0.06 mm for each millimeter of length.

## Clinical Guides

[How to Read File Sizes](https://endo-guide.app/file-sizes)[Canal Preparation](https://endo-guide.app/canal-preparation)

## Related Terms

[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)[Torque](https://endo-guide.app/glossary/torque)[Screw-In Effect (Taper Lock)](https://endo-guide.app/glossary/screw-in)[Glide Path](https://endo-guide.app/glossary/glide-path)

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