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

 Alloy

# NiTi Generations

## Definition

A loose shorthand for how rotary NiTi files have developed: conventional superelastic alloy, then thermomechanically processed wires such as M-Wire and R-Phase, then controlled-memory and gold/blue heat treatments, alongside design changes such as off-centred cross-sections and reciprocating motion. The numbering is not standardised and sources group the stages differently, so it is more useful for placing an alloy than as a specification.

## Related File Systems

[ProTaper Next](https://endo-guide.app/system/protaper-next)[HyFlex CM](https://endo-guide.app/system/hyflex-cm)[ProTaper Gold](https://endo-guide.app/system/protaper-gold)

## Related Terms

[NiTi (Nickel-Titanium)](https://endo-guide.app/glossary/niti)[M-Wire](https://endo-guide.app/glossary/m-wire)[Gold Heat Treatment](https://endo-guide.app/glossary/gold-heat-treatment)[Blue Heat Treatment](https://endo-guide.app/glossary/blue-heat-treatment)[CM-Wire (Controlled Memory)](https://endo-guide.app/glossary/cm-wire)[Af Temperature (Austenite Finish)](https://endo-guide.app/glossary/af-temperature)

---

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