# T-Flex™

> High-Purity NiTi Tuned for Curved Canals

- **Manufacturer:** Perfect Dental (Shenzhen Perfect Medical Instruments)
- **Motion:** Continuous Rotation
- **Alloy:** High-Purity Black NiTi (low carbon/oxygen)
- **Key feature:** Five-file rotary sequence (20/.10 opener, 15/.03, 20/.04, 25/.04, 25/.06) made from high-purity NiTi with low carbon and oxygen impurities, intended for curved anatomy and reduced canal transportation (per brochure)

## Specifications

| File | Tip (mm) | Taper | Length | Cross-section | Motion | Speed (rpm) | Torque | Role |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 20/.10 Opener | 0.20 | 10% | 17mm | Brochure shows a cross-section illustration but does not name the geometry | Continuous Rotation | 300-400 | 2.5 Ncm | orifice opener |
| 15/.03 | 0.15 | 3% | 21mm, 25mm, 31mm | Brochure shows a cross-section illustration but does not name the geometry | Continuous Rotation | 300-400 | 1.5 Ncm | glide path |
| 20/.04 | 0.20 | 4% | 21mm, 25mm, 31mm | Brochure shows a cross-section illustration but does not name the geometry | Continuous Rotation | 300-400 | 2.0 Ncm | shaping |
| 25/.04 | 0.25 | 4% | 21mm, 25mm, 31mm | Brochure shows a cross-section illustration but does not name the geometry | Continuous Rotation | 300-400 | 2.5 Ncm | shaping |
| 25/.06 | 0.25 | 6% | 21mm, 25mm, 31mm | Brochure shows a cross-section illustration but does not name the geometry | Continuous Rotation | 300-400 | 2.5 Ncm | finishing |

## Protocol

### Glide Path

1. **Manual Glide Path** — Establish a manual glide path with ISO 010 / 015 K-files to working length and irrigate with NaOCl before introducing the rotary set (per Perfect Dental IFU family precautions — T-Flex brochure has no dedicated IFU section).
2. **Coronal Opening with 20/.10** — Use the 20/.10 (17 mm) opener to widen the orifice and establish a vertical channel (per brochure spec table). _(File: 20/.10 · 300-400 rpm · 2.5 N·cm)_
3. **Mechanical Glide Path with 15/.03** — Carry the 15/.03 glide-path file to working length following the manual scout (per brochure spec table). _(File: 15/.03 · 300-400 rpm · 1.5 N·cm)_

### Shaping

1. **Shape with 20/.04 → 25/.04** — Use 20/.04 followed by 25/.04 to working length at 300–400 rpm and 2.0–2.5 N·cm torque (per brochure spec table). _(File: 20/.04 then 25/.04 · 300-400 rpm · 2.0-2.5 N·cm)_
   - Brand cites high-purity black NiTi alloy with low carbon/oxygen impurities for improved performance (per brochure marketing claim)
   - Heat-treated geometry follows the curved canal axis to reduce ledging, central deviation, transportation, and deformation (per brochure)
2. **Finish with 25/.06** — Finish wider canals with 25/.06 at the same motor settings (per brochure spec table). _(File: 25/.06 · 300-400 rpm · 2.5 N·cm)_

### Finishing

1. **Confirm Apical Preparation** — Verify final apical preparation with a matching hand file; irrigate, dry, and proceed to obturation.

## Clinical Tips

- High-purity NiTi alloy is described as having low carbon and oxygen impurities (per brochure marketing claim — not independently verified)
- T-Flex is positioned for curved anatomy; brand claims suitability across simple and complex root canals (per brochure)
- Low resilience is cited as reducing ledging, central deviation, and canal transportation (per brochure)

## Warnings

- Single-use; discard after each canal (per Perfect Dental IFU family precautions — T-Flex brochure has no dedicated IFU section)
- Do not autoclave above 200 °C including drying phase (per Perfect Dental IFU family precautions — T-Flex brochure has no dedicated IFU section)
- Do not fully immerse in NaOCl; only the working part may contact a max 5% NaCl solution for up to 5 minutes (per Perfect Dental IFU family precautions — T-Flex brochure has no dedicated IFU section)
- Use minimal apical pressure; never force the file (per Perfect Dental IFU family precautions — T-Flex brochure has no dedicated IFU section)
- Inspect each file for distortion, unwinding, corrosion, or damaged edges before use (per Perfect Dental IFU family precautions — T-Flex brochure has no dedicated IFU section)
- Contraindicated in patients with nickel allergy (per IFU)

## Contraindications

- patients with known nickel allergy (per IFU)

## Best for

- curved canal preparation
- general multi-file rotary shaping
- practices wanting a balanced flexibility/cutting profile

## Technical profile

- **Category:** multi-file-rotary
- **Heat treatment:** Other — Brand describes proprietary heat-treated high-purity NiTi with reduced impurities; specific heat-treatment chemistry not disclosed in the brochure
- **Manufacturing method:** ground
- **Pre-bendable:** no
- **Reuse:** Single-use
- **Motor:** any-rotary
- **Glide path requirement:** mechanical-recommended — T-Flex 20/.10 opener + T-Flex 15/.03 glider
- **Canal suitability:** Curvature: mild, moderate, severe; Canal size: narrow, normal, wide; Calcified canals: no; Retreatment: no; Conservative access: no
- **Content revision:** 2026-05-16

## FAQ

**What alloy is T-Flex made from?**

T-Flex™ is manufactured from High-Purity Black NiTi (low carbon/oxygen) with other heat treatment.

**How many files are in the T-Flex sequence?**

The T-Flex™ system includes 5 files: 20/.10 Opener, 15/.03, 20/.04, 25/.04, 25/.06.

**What is the T-Flex file sequence?**

T-Flex™ is used in this order: 15/.03 → 20/.10 Opener → 20/.04 → 25/.04 → 25/.06. Per-file speed, torque and technique are in the protocol section above.

**What motion type does T-Flex use?**

T-Flex™ uses continuous rotation motion.

**What cases is T-Flex best for?**

T-Flex™ is best suited for: curved canal preparation, general multi-file rotary shaping, practices wanting a balanced flexibility/cutting profile.

**What speed and torque settings are recommended for T-Flex?**

Recommended settings: 300-400 RPM and 2.5 / 1.5 / 2.0 Ncm across the file sequence (refer to official DFU for full per-file parameters).

## Related

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_Educational reference for dental professionals. Always confirm settings against the official manufacturer instructions for use before clinical procedures._