What alloy is One Curve made from?

One Curve® is manufactured from C.Wire NiTi with c-wire heat treatment.

How many files are in the One Curve sequence?

The One Curve® system includes 4 files: 25/.06, 25/.04, 35/.04, 45/.04.

What motion type does One Curve use?

One Curve® uses continuous rotation motion.

What cases is One Curve best for?

One Curve® is best suited for: single-file rotary simplicity, controlled-memory flexibility, pre-bendable for difficult access.

What speed and torque settings are recommended for One Curve?

Recommended settings: 300 RPM and 2.5 Ncm across the file sequence (refer to official DFU for full per-file parameters).

One Curve®

Micro-Mega (COLTENE)

Continuous Rotation

One Curve®

Controlled-memory single-file rotary system with variable cross-section for full canal shaping

AlloyC.Wire NiTiFile4VerifiedFeb 2026

Specifications

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File	Tip	Taper	Speed rpm	Torque Ncm
25/.06	0.25	6%	300	2.5
25/.04	0.25	4%	300	2.5
35/.04	0.35	4%	300	2.5
45/.04	0.45	4%	300	2.5

Clinical Tips

Same motor settings for all files: 300 RPM, 2.5 Ncm

C.Wire controlled-memory alloy allows pre-bending for difficult access

Variable cross-section design for optimized cutting and debris removal

Single-file system: one instrument shapes the full canal in most cases

No sucking-in effect during use — smooth cutting action

Mini variant available with smaller 1mm wire diameter for restricted access

Compatible with One Flare (coronal flaring) and One G (glide path) ecosystem

Warnings

Single-use only — sterile, pre-packaged, do not reprocess
Contains nickel — do not use on patients with nickel allergy
Always establish glide path before rotary shaping
Inspect for deformation before use — discard if any signs of damage
Do not leave file rotating at working length for extended periods
Not recommended for severely calcified canals without prior negotiation

Obturation Techniques

Single cone, warm vertical, carrier-based & lateral compaction

Protocol

01Glide Path

02Shaping

03Finishing

Related Systems

From Micro-Mega (COLTENE) Systems

One Shape 2Shape One Flare One RECI

Manufacturer page

Micro-Mega (COLTENE) Systems

Other continuous rotation systems

ProTaper Gold ProTaper Ultimate ProTaper Next

Motion category

Continuous Rotation

Comparisons

One CurvevsBioRaCe One CurvevsE-Flex Gold One CurvevsEdgeEvolve One CurvevsEdgeFile X7 One CurvevsEdgeGlidePath One CurvevsEdgeOne Fire One CurvevsEdgeTaper Platinum One CurvevsEndoArt Action One CurvevsEndoArt Expert One CurvevsEndoArt Smart One CurvevsEndoArt Touch One CurvevsEndoSequence One CurvevsESX One CurvevsHyFlex CM One CurvevsHyFlex EDM One CurvevsHyFlex GPF One CurvevsiRaCe One CurvevsiRaCe Plus One CurvevsK3XF One CurvevsMtwo One CurvevsOne Flare One CurvevsOne RECI One CurvevsOne Shape One CurvevsPathFile One CurvevsProDesign Logic One CurvevsProGlider One CurvevsProTaper Gold One CurvevsProTaper Next One CurvevsProTaper Ultimate One CurvevsR-Motion One CurvevsRACE EVO One CurvevsRECIPROC One CurvevsReciproc Blue One CurvevsTF Adaptive One CurvevsTraverse One CurvevsTruNatomy One Curvevs2Shape One CurvevsVDW.ROTATE One CurvevsVortex Blue One CurvevsWaveOne Gold One CurvevsXP-endo Finisher One CurvevsXP-endo Retreatment One CurvevsXP-endo Rise One CurvevsXP-endo Shaper One CurvevsZenFlex

Alloy

C.Wire (Controlled Memory)

Clinical guides

Canal Preparation Irrigation Obturation Complications

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