# T-Pro™

> Mixed Heat-Treatment Sequence

- **Manufacturer:** Perfect Dental (Shenzhen Perfect Medical Instruments)
- **Motion:** Continuous Rotation
- **Alloy:** Mixed: Heat-Treated NiTi (ST/PG/E1/E2) + Pre-Bendable NiTi (E3/E4)
- **Key feature:** Six-file premium sequence combining heat-treated rotary shapers (ST 30/.08, PG 17/.04, E1 20/.04, E2 25/.04) with pre-bendable finishers (E3 20/.06, E4 25/.06), with brand-cited 200% durability/efficiency improvement (per brochure)

## Specifications

| File | Tip (mm) | Taper | Length | Cross-section | Motion | Speed (rpm) | Torque | Role |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| ST 30/.08 | 0.30 | 8% | 21mm, 25mm, 31mm | Brochure cites "adapted S cross-section" (per brochure Features section) | Continuous Rotation | Not specified in brochure spec table | 3.0 Ncm | orifice opener |
| PG 17/.04 | 0.17 | 4% | 21mm, 25mm, 31mm | Brochure cites "adapted S cross-section" (per brochure Features section) | Continuous Rotation | Not specified in brochure spec table | 3.0 Ncm | glide path |
| E1 20/.04 | 0.20 | 4% | 21mm, 25mm, 31mm | Brochure cites "adapted S cross-section" (per brochure Features section) | Continuous Rotation | Not specified in brochure spec table | 1.5 Ncm | shaping |
| E2 25/.04 | 0.25 | 4% | 21mm, 25mm, 31mm | Brochure cites "adapted S cross-section" (per brochure Features section) | Continuous Rotation | Not specified in brochure spec table | 1.5 Ncm | shaping |
| E3 20/.06 | 0.20 | 6% | 21mm, 25mm, 31mm | Brochure cites "adapted S cross-section" (per brochure Features section) | Continuous Rotation | Not specified in brochure spec table | 2.5 Ncm | finishing |
| E4 25/.06 | 0.25 | 6% | 21mm, 25mm, 31mm | Brochure cites "adapted S cross-section" (per brochure Features section) | Continuous Rotation | Not specified in brochure spec table | 2.5 Ncm | finishing |

## Protocol

### Glide Path

1. **Hand-File Scout to Working Length** — Use a #10 SSK to dredge the canal until it reaches working length. Repeatedly enter to establish a reproducible smooth path. Measure WL and rinse with copious sodium hypochlorite (per brochure step 1).
2. **Second Pass with #15 SSK** — Use the #15 SSK to dredge the canal. After reaching WL, again repeatedly enter to establish a reproducible smooth path. Measure WL the second time and irrigate with copious NaOCl (per brochure step 2).
3. **Orifice Enlargement with ST** — Brochure operation sequence image (page 1) places ST (30/.08, 3.0 N·cm, blue stop) between the K-file scout (#10/#15) and PG (17/.04). The brochure text Operation Sequence steps 1–4 do not include a dedicated ST step, so ST usage details are inferred from the sequence diagram only. _(File: ST 30/.08 · 3.0 N·cm)_
4. **Mechanical Path with PG** — Use PG (17/.04) with lateral force against the canal wall and a brushing motion to enlarge the cross-sectional area. Advance 1 mm at a time, briefly pulling up the NiTi file, until out-stroke 1/3 of the root apex. Follow the original canal anatomy to avoid deviation. Irrigate with NaOCl, dredge with #15 SSK, and irrigate again (per brochure step 3). _(File: PG 17/.04 · 3.0 N·cm)_

### Shaping

1. **Shape with E1** — Use E1 (20/.04) with lateral brushing force and 1 mm step-down advance. Pull up briefly between strokes. For posterior teeth with thinner canals, preparation may be completed at this step (per brochure step 4). _(File: E1 20/.04 · 1.5 N·cm)_
   - For thin posterior canals, preparation can stop at E1 (per brochure)
2. **Shape with E2 / E3 / E4 as Needed** — Continue the same brushing motion with E2 (25/.04), then E3 (20/.06), then E4 (25/.06) according to canal anatomy. E3 and E4 are pre-bendable for difficult access cases (per brochure operation sequence and file table). _(File: E2 → E3 → E4 · 1.5–2.5 N·cm)_
   - E3/E4 are pre-bendable — useful for curved or difficult-access canals (per brochure)
   - Brand cites a 200% improvement in durability, cutting efficiency, and fracture resistance vs ungrouped competitor (per brochure marketing claim — not independently verified)

### Finishing

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

## Clinical Tips

- Mixed alloy strategy: ST/PG/E1/E2 are heat-treated shapers; E3/E4 add pre-bendability for difficult access (per brochure)
- Brand cites a 200% improvement in durability, cutting efficiency, and fracture resistance vs competitor (per brochure marketing claim — not independently verified)
- Adapted S cross-section is described as supporting higher cutting efficiency and debris removal (per brochure)
- Maximum sterilization temperature: ≤134 °C (per brochure file table)

## Warnings

- Single-use; discard after each canal (per Perfect Dental IFU family precautions — T-Pro brochure has no dedicated IFU section)
- Do not autoclave above 200 °C including drying phase (per Perfect Dental IFU family precautions — T-Pro 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-Pro brochure has no dedicated IFU section)
- Use minimal apical pressure; never force the file (per Perfect Dental IFU family precautions — T-Pro 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-Pro brochure has no dedicated IFU section)
- Contraindicated in patients with nickel allergy (per IFU)

## Contraindications

- patients with known nickel allergy (per IFU)

## Best for

- premium full-sequence rotary shaping
- curved canals where pre-bending matters
- practices wanting a single brand to cover glide path through finishing

## Technical profile

- **Category:** multi-file-rotary
- **Heat treatment:** Other — Mixed strategy: brand describes ST/PG/E1/E2 as heat-treated and E3/E4 as pre-bendable NiTi; specific heat-treatment chemistry not disclosed in the brochure
- **Manufacturing method:** ground
- **Pre-bendable:** yes
- **Reuse:** Single-use
- **Motor:** any-rotary
- **Glide path requirement:** mechanical-recommended — Manual #10/#15 SSK then T-Pro PG 17/.04 glide-path file
- **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-Pro made from?**

T-Pro™ is manufactured from Mixed: Heat-Treated NiTi (ST/PG/E1/E2) + Pre-Bendable NiTi (E3/E4).

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

The T-Pro™ system includes 6 files: ST 30/.08, PG 17/.04, E1 20/.04, E2 25/.04, E3 20/.06, E4 25/.06.

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

T-Pro™ is used in this order: PG 17/.04 → ST 30/.08 → E1 20/.04 → E2 25/.04 → E3 20/.06 → E4 25/.06. Per-file speed, torque and technique are in the protocol section above.

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

T-Pro™ uses continuous rotation motion.

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

T-Pro™ is best suited for: premium full-sequence rotary shaping, curved canals where pre-bending matters, practices wanting a single brand to cover glide path through finishing.

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

Recommended settings: Not specified in brochure spec table and 3.0 / 1.5 / 2.5 Ncm across the file sequence (refer to official DFU for full per-file parameters).

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