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One Shape vs ZenFlex

Micro-Mega (COLTENE) · Kerr Dental

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One Shape®

Micro-Mega (COLTENE)

Single-File Rotary Simplicity

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ZenFlex™

Kerr Dental

Controlled Memory Precision

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Clinical Tip

Compare specifications above to choose the best system for your clinical case.

Specifications

Specifications comparison: One Shape vs ZenFlex
One ShapeZenFlex
ManufacturerMicro-Mega (COLTENE)Kerr Dental
AlloyConventional NiTiHeat-Treated NiTi (Controlled Memory)
Heat TreatmentConventionalCM-Wire
MotionContinuous RotationContinuous Rotation
Files110
Taper6%4%, 6%
Cross-sectionVariable asymmetric (3→2 cutting edges)Triangular
Speed350 RPM500 RPM
Torque2.5 Ncm1–3.5 Ncm
Use TypeSingle-useSingle-use

Best For

One Shape

single-file rotary simplicityefficient continuous rotation shapingcost-effective one-instrument workflow

ZenFlex

minimally invasive shapingcontrolled-memory flexibilitydual taper strategy (.04/.06)

Key Features

One Shape

Single-file continuous rotation with variable asymmetric cross-section (3 to 2 cutting edges) and ABC anti-breakage control

ZenFlex

Violet oxide surface with 1mm flute diameter for minimally invasive shaping and excellent flexibility