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One Shape vs TruNatomy

Micro-Mega (COLTENE) · Dentsply Sirona

TR

One Shape®

Micro-Mega (COLTENE)

Single-File Rotary Simplicity

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TruNatomy®

Dentsply Sirona

True, Natural, Anatomy

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Clinical Tip

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

Specifications

Specifications comparison: One Shape vs TruNatomy
One ShapeTruNatomy
ManufacturerMicro-Mega (COLTENE)Dentsply Sirona
AlloyConventional NiTiHeat-Treated NiTi
Heat TreatmentConventionalOther
MotionContinuous RotationContinuous Rotation
Files16
Taper6%Variable
Cross-sectionVariable asymmetric (3→2 cutting edges)Off-centered parallelogram, Centered parallelogram (2 cutting edges)
Speed350 RPM500 RPM
Torque2.5 Ncm1.5 Ncm
Use TypeSingle-useSingle-use

Best For

One Shape

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

TruNatomy

dentin preservationconservative accessminimally invasive

Key Features

One Shape

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

TruNatomy

Slim 0.8mm MFD with off-centered parallelogram cross-section preserves peri-cervical dentin while maintaining shaping efficiency