NiTi Alloy

# Conventional NiTi

Conventional NiTi is the original, non-heat-treated nickel-titanium used in rotary endodontic files. Its austenite finish temperature (Af) sits below body temperature, so at 37°C the alloy is predominantly austenitic and superelastic: it flexes under load and springs back to its original shape, which means these files generally cannot be pre-bent. Conventional NiTi is stiffer than the martensitic heat-treated alloys (Gold, Blue, CM-Wire) and serves as the baseline reference against which their flexibility and cyclic-fatigue improvements are reported. It remains widely used and cost-effective, and is generally well suited to straighter canals and to clinicians who prefer the tactile feedback of a more rigid instrument.

## Metallurgical Properties

Af Temperature~15–25°C

Phase at 37°CAustenite (superelastic)

FlexibilityBaseline (stiffer, springs back)

Cyclic FatigueBaseline reference

[Compare all heat treatments→](https://endo-guide.app/alloy/heat-treatment-comparison)

## Systems Using Conventional NiTi

[### Mtwo VDW GmbH Rotary Conventional · 4-7% · 16 files The Efficient NiTi System](https://endo-guide.app/system/mtwo)[### One Shape Micro-Mega (COLTENE) Rotary Conventional · 6% · 1 files Single-File Rotary Simplicity](https://endo-guide.app/system/one-shape)[### iRaCe FKG Dentaire Rotary Conventional · 6% / 4% · 5 files 3-File Simplicity](https://endo-guide.app/system/irace)[### EndoSequence Brasseler USA Rotary Conventional · 4% / 6% · 9 files Crown-Down Precision](https://endo-guide.app/system/endosequence)[### BioRaCe FKG Dentaire Rotary Conventional · 4% / 6% / 8% · 10 files Biological Root Canal Preparation](https://endo-guide.app/system/biorace)[### PathFile Dentsply Sirona Rotary Conventional · 2% · 3 files Three-File Mechanical Glide Path Sequence](https://endo-guide.app/system/pathfile)[### ESX Brasseler USA Rotary Electropolished · 4% · 8 files Two-File Shaping with Patented Booster Tip](https://endo-guide.app/system/esx)[### iRaCe Plus FKG Dentaire Rotary Conventional · 2-4% · 4 files Extended Difficult-Canal Sequence](https://endo-guide.app/system/irace-plus)[### Traverse Kerr Endodontics Rotary NiTi · 6-8% · 3 files Own the Glide Path](https://endo-guide.app/system/traverse)[### K One Perfect Dental Rotary NiTi · 6% · 1 files Pediatric Single-File for Primary Teeth](https://endo-guide.app/system/perfect-k-one)[### MG3 Perfect Dental Rotary Conventional · 2-12% · 6 files Six-File Conventional NiTi Sequence](https://endo-guide.app/system/perfect-mg3)[### Perfect TS4 Perfect Dental Rotary NiTi · 2-7% · 5 files Stepped Rotary + Twin Shaper Sequence](https://endo-guide.app/system/perfect-ts4)[### PX Wave Perfect Dental Reciprocating NiTi · 2% · 1 files Single-File Reciprocating Glider](https://endo-guide.app/system/perfect-px-wave)[### RC Perfect Dental Reciprocating NiTi · 5-8% · 3 files Reciprocating NiTi — Original](https://endo-guide.app/system/perfect-rc)[### TF4 Perfect Dental Rotary NiTi · 5-7% · 4 files Rotary + Reciprocating Hybrid Sequence](https://endo-guide.app/system/perfect-tf4)[### TG6 Perfect Dental Rotary NiTi · 2-9% · 8 files Extended Glide-Path + Shaper Sequence](https://endo-guide.app/system/perfect-tg6)[### NIC V File NIC Dental (Shenzhen Superline Technology) Reciprocating MaxTech · 5-8% regressive · 3 files Untreated Three-Size Reciprocation](https://endo-guide.app/system/nic-v-file)

## Related Clinical Links

NiTi collections

[Glide Path Files](https://endo-guide.app/niti-files/glide-path-files)[Reciprocating Systems](https://endo-guide.app/niti-files/reciprocating-file-systems)[Rotary Systems](https://endo-guide.app/niti-files/rotary-file-systems)[Single-Use Systems](https://endo-guide.app/niti-files/single-use-niti-files)

Clinical use cases

[Severe Curvature](https://endo-guide.app/use-case/severe-curvature)[Calcified Canals](https://endo-guide.app/use-case/calcified-canals)

Related alloys

[Gold Heat Treatment](https://endo-guide.app/alloy/gold)[Blue Heat Treatment](https://endo-guide.app/alloy/blue)[CM-Wire (Controlled Memory)](https://endo-guide.app/alloy/cm-wire)[C.Wire (Controlled Memory)](https://endo-guide.app/alloy/c-wire)

![Uzm. Dt. Levent Yüksel](https://endo-guide.app/images/levent-yuksel.jpg)

Reviewed by

Uzm. Dt. Levent Yüksel

DDS · Endodontist

Endodontist — DDS, Hacettepe University; endodontics specialty training, Ankara University. 10+ years of clinical experience. Sole author and reviewer of EndoGuide content.

[About the author](https://endo-guide.app/about)[Editorial policy](https://endo-guide.app/editorial-policy)[Clinical profile](https://drleventyuksel.com/)

[Back to all systems](https://endo-guide.app/)

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