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
Systems Using Conventional NiTi
Mtwo
VDW GmbH
Conventional · 4-7% · 16 files
The Efficient NiTi System
One Shape
Micro-Mega (COLTENE)
Conventional · 6% · 1 files
Single-File Rotary Simplicity
iRaCe
FKG Dentaire
Conventional · 6% / 4% · 5 files
3-File Simplicity
EndoSequence
Brasseler USA
Conventional · 4% / 6% · 9 files
Crown-Down Precision
BioRaCe
FKG Dentaire
Conventional · 4% / 6% / 8% · 10 files
Biological Root Canal Preparation
PathFile
Dentsply Sirona
Conventional · 2% · 3 files
Three-File Mechanical Glide Path Sequence
ESX
Brasseler USA
Electropolished · 4% · 8 files
Two-File Shaping with Patented Booster Tip
iRaCe Plus
FKG Dentaire
Conventional · 2-4% · 4 files
Extended Difficult-Canal Sequence
Traverse
Kerr Endodontics
NiTi · 6-8% · 3 files
Own the Glide Path
K One
Perfect Dental
NiTi · 6% · 1 files
Pediatric Single-File for Primary Teeth
MG3
Perfect Dental
Conventional · 2-12% · 6 files
Six-File Conventional NiTi Sequence
Perfect TS4
Perfect Dental
NiTi · 2-7% · 5 files
Stepped Rotary + Twin Shaper Sequence
PX Wave
Perfect Dental
NiTi · 2% · 1 files
Single-File Reciprocating Glider
RC
Perfect Dental
NiTi · 5-8% · 3 files
Reciprocating NiTi — Original
TF4
Perfect Dental
NiTi · 5-7% · 4 files
Rotary + Reciprocating Hybrid Sequence
TG6
Perfect Dental
NiTi · 2-9% · 8 files
Extended Glide-Path + Shaper Sequence
NIC V File
NIC Dental (Shenzhen Superline Technology)
MaxTech · 5-8% regressive · 3 files
Untreated Three-Size Reciprocation
Related Clinical Links
Clinical use cases
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.