K One™
Perfect Dental (Shenzhen Perfect Medical Instruments)
K One™
Perfect Dental (Shenzhen Perfect Medical Instruments)
15 mm single rotary file (25/.06) whose "special tip design", according to the brochure, is meant to spare the periapical tissues of primary teeth from irritation and damage
Continuous Rotation · NiTi
- RPM
- Ncm1.5-3.0
- File
- 1
- Verified
Specifications
Tap icons for term definitions
| File | Tip | Taper | SpeedRPM | TorqueNcm | Role |
|---|---|---|---|---|---|
Diameter at the file tip (D0). Larger tips shape wider canals. | |||||
How much the file widens per mm. Higher taper = more aggressive cutting. | |||||
Rotational speed (RPM). Follow manufacturer settings to prevent file breakage. | |||||
Rotational force limit (Ncm). Prevents file fracture by auto-reversing when resistance is too high. | |||||
K One 25/.06red | 0.25 | 6% | 250-350 | 1.5-3.0 | Shaping |
Clinical Tips
- Single 25/.06 file at 15 mm length is intended to match the deciduous-tooth canal length and width (per brochure)
- Brochure describes a "special tip design" to avoid periapical irritation and damage in primary teeth; the brochure does not explicitly use the term "non-cutting"
- Spec table: 1.5–3.0 N·cm torque and 250–350 rpm; sterilization ≤134 °C; supplied 4 pcs per box/blister (per brochure features and spec tables)
- Pediatric anatomy varies widely; verify working length radiographically and respect physiologic apex location (general pediatric guidance, not from brochure)
- Pulpectomy in primary teeth typically aims for clean and shape with minimal apical extension; over-instrumentation may damage the permanent tooth bud (general pediatric guidance, not from brochure)
Warnings
- Brochure features table specifies a maximum sterilization temperature of 134 °C (per brochure)
- Brochure body does not explicitly state "single-use"; the Perfect Dental IFU family advises single-canal use (a new file, discarded after the canal is treated) when shaping extremely curved canals, and no IFU specific to K One was located
- Do not fully immerse in NaOCl; the IFU family limits contact to max 5% NaOCl on the working part for up to 5 minutes (per Perfect Dental IFU family precautions)
- Safety in pregnant or breastfeeding patients has not been established (per Perfect Dental IFU family precautions)
- Inspect for deformation, unwinding, corrosion, or damaged edges before use — discard if any defect is present (per Perfect Dental IFU family precautions)
Obturation Techniques
Single cone, warm vertical, carrier-based & lateral compaction
Protocol
01Glide Path1
02Shaping1
03Finishing1
Related Systems
From Perfect Dental Systems
Manufacturer page
Perfect Dental SystemsOther continuous rotation systems
Motion category
Continuous RotationCollections
Clinical guides
Frequently Asked Questions
What alloy is K One made from?
What alloy is K One made from?
Answer
K One™ is manufactured from NiTi with cm-wire heat treatment.
How many files are in the K One sequence?
How many files are in the K One sequence?
Answer
The K One™ system includes 1 file: K One 25/.06.
What motion type does K One use?
What motion type does K One use?
Answer
K One™ uses continuous rotation motion.
What cases is K One best for?
What cases is K One best for?
Answer
K One™ is best suited for: primary-tooth pulpectomy, short pediatric canals, single-file pediatric workflow.
What speed and torque settings are recommended for K One?
What speed and torque settings are recommended for K One?
Answer
Recommended settings: 250-350 RPM and 1.5-3.0 Ncm across the file sequence (refer to official DFU for full per-file parameters).
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.
Cite this page
Citation formats for the manufacturer-verified specification data on this page.
AMA
Yüksel L. K One: sequence, speed and torque settings. EndoGuide. Updated: 2026-10-03. https://endo-guide.app/system/perfect-k-one
BibTeX
@misc{endoguide-perfect-k-one,
author = {Yüksel, Levent},
title = {K One: sequence, speed and torque settings},
howpublished = {\url{https://endo-guide.app/system/perfect-k-one}},
year = {2026},
note = {EndoGuide. Updated: 2026-10-03}
}Powered by:Uzm. Dt. Levent Yüksel
@endoguideappIndependent educational resource. Product names and trademarks belong to their respective manufacturers, who neither sponsor nor endorse EndoGuide.