TF4™
Perfect Dental (Shenzhen Perfect Medical Instruments)
TF4™
Perfect Dental (Shenzhen Perfect Medical Instruments)
Four-file sequence (T20 20/.07, T25 25/.07, T35 35/.06, T45 45/.05) at 350 rpm / 2.0–3.0 N·cm; T25 25/.07 is run in reciprocating motion, with T20 substituted on resistance and T35/T45 when the prepared canal is loose (per IFU spec table and step-by-step)
Reciprocating · NiTi
- RPM
- Ncm2.0-3.0
- File
- 4
- Verified
Specifications
Tap icons for term definitions
Reciprocating
| File | Tip | Taper | Motion | Role |
|---|---|---|---|---|
Diameter at the file tip (D0). Larger tips shape wider canals. | ||||
How much the file widens per mm. Higher taper = more aggressive cutting. | ||||
T20 20/.07yellow | 0.20 | 7% | Reciprocating | Shaping |
T25 25/.07red | 0.25 | 7% | Reciprocating | Shaping |
T35 35/.06green | 0.35 | 6% | Reciprocating | Finishing |
T45 45/.05white | 0.45 | 5% | Reciprocating | Finishing |
Clinical Tips
- TF4 has its own IFU (TF4 GOLD Instructions for use, Document No. TF4-SM-0101, version B/0, 2023) with step-by-step instructions
- Verified spec table: T20 20/.07, T25 25/.07, T35 35/.06, T45 45/.05 — all at 350 rpm and 2.0–3.0 N·cm (per IFU spec table)
- Reciprocating kinematics: the only motion the IFU names is reciprocation (step 5, T25 25/.07); step 7 lists T20 (resistance) and T35/T45 (loose canal) as replacements within that step, and no step uses continuous rotation. The manufacturer lists TF4 under Reciprocating Files (per IFU steps 5–7)
- Switch logic is explicitly defined: tighten → T20, loosen → T35/T45 (per IFU step 7)
- The .07 tapers in T20/T25 are aggressive — verify motor torque headroom and avoid binding (general guidance)
Warnings
- Single-canal use (a new file, discarded after the canal is treated) is advised when shaping extremely curved canals (per IFU section 4)
- Do not autoclave above 200 °C including drying phase (per IFU sterilization section)
- Do not fully immerse in NaOCl; only the working part may contact a max 5% NaOCl solution for up to 5 minutes (per IFU section 4)
- Inspect each file for distortion, unwinding, corrosion, or damaged edges before use (per IFU section 4)
- Use minimal apical pressure; never force the file (per IFU section 4)
- Contraindicated in patients with nickel allergy (per IFU section 1)
Obturation Techniques
Single cone, warm vertical, carrier-based & lateral compaction
Protocol
01Glide Path2
02Shaping2
03Finishing1
Related Systems
From Perfect Dental Systems
Manufacturer page
Perfect Dental SystemsOther reciprocating systems
Motion category
Reciprocating MotionAlloy
Conventional NiTiCollections
Clinical guides
Frequently Asked Questions
What alloy is TF4 made from?
What alloy is TF4 made from?
Answer
TF4™ is manufactured from NiTi with conventional heat treatment.
How many files are in the TF4 sequence?
How many files are in the TF4 sequence?
Answer
The TF4™ system includes 4 files: T20 20/.07, T25 25/.07, T35 35/.06, T45 45/.05.
What is the TF4 file sequence?
What is the TF4 file sequence?
Answer
TF4™ offers these files: T20 20/.07, T25 25/.07, T35 35/.06, T45 45/.05.
- One shaping file is selected per canal; the protocol section above shows the starting file.
What motion type does TF4 use?
What motion type does TF4 use?
Answer
TF4™ uses reciprocating motion.
What cases is TF4 best for?
What cases is TF4 best for?
Answer
TF4™ is best suited for: reciprocating shaping led by a single primary file (T25 25/.07), clinicians using a dedicated reciprocating motor setting, moderate-curvature anatomy.
What speed and torque settings are recommended for TF4?
What speed and torque settings are recommended for TF4?
Answer
TF4™ uses reciprocating motion with manufacturer-specific motor settings (refer to official DFU for exact 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. TF4: sequence, speed and torque settings. EndoGuide. Updated: 2026-11-12. https://endo-guide.app/system/perfect-tf4
BibTeX
@misc{endoguide-perfect-tf4,
author = {Yüksel, Levent},
title = {TF4: sequence, speed and torque settings},
howpublished = {\url{https://endo-guide.app/system/perfect-tf4}},
year = {2026},
note = {EndoGuide. Updated: 2026-11-12}
}Powered by:Uzm. Dt. Levent Yüksel
@endoguideappIndependent educational resource. Product names and trademarks belong to their respective manufacturers, who neither sponsor nor endorse EndoGuide.