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K One vs ProTaper Ultimate

Perfect Dental (Shenzhen Perfect Medical Instruments) · Dentsply Sirona

TR

K One™

Perfect Dental (Shenzhen Perfect Medical Instruments)

Pediatric Single-File for Primary Teeth

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ProTaper Ultimate™

Dentsply Sirona

The Ultimate Evolution

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Clinical Tip

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

Specifications

Specifications comparison: K One vs ProTaper Ultimate
K OneProTaper Ultimate
ManufacturerPerfect Dental (Shenzhen Perfect Medical Instruments)Dentsply Sirona
AlloyNiTiM-Wire / Gold / Blue Heat-Treated NiTi
Heat TreatmentConventionalGold Heat-Treated
MotionContinuous RotationContinuous Rotation
Files18
Taper6%Variable
Cross-sectionSpiral-shaped tip end on a single blade (per brochure description)Parallelogram (variable acute angles, off-centered)
Speed250 RPM400 RPM
Torque1.5 Ncm4 Ncm
Use TypeSingle-useSingle-use

Best For

K One

primary-tooth pulpectomyshort pediatric canalssingle-file pediatric workflow

ProTaper Ultimate

5th generation ProTaper evolutionK-file free workflowcomplex anatomy with manual fallback for severe curves

Key Features

K One

15 mm single rotary file (25/.06) with a brochure-described "special tip design" intended to avoid irritation and damage to the periapical tissue of primary teeth (per brochure)

ProTaper Ultimate

Slider-Shaper-Finishers concept with dual heat treatments: Gold for standard sequence, Blue for auxiliary finishers in large canals