# 2Shape®

> Two-File Simplicity

- **Manufacturer:** Micro-Mega (COLTENE)
- **Motion:** Continuous Rotation
- **Alloy:** T.Wire Heat-Treated NiTi
- **Key feature:** Intuitive 2-file sequence (TS1+TS2) with asymmetrical triple helix cross-section and T.Wire heat treatment

## Specifications

| File | Tip (mm) | Taper | Length | Cross-section | Motion | Speed (rpm) | Torque | Role |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| TS1 | 0.25 | .04 | 21mm, 25mm, 29mm | Asymmetrical triple helix | Continuous Rotation | 250-400 | 2.0 Ncm | shaping |
| TS2 | 0.25 | .06 | 21mm, 25mm, 29mm | Asymmetrical triple helix | Continuous Rotation | 250-400 | 2.5 Ncm | shaping |
| F35 | 0.35 | .06 | 21mm, 25mm, 29mm | Asymmetrical triple helix | Continuous Rotation | 250-400 | 2.5 Ncm | finishing |
| F40 | 0.40 | .04 | 21mm, 25mm, 29mm | Asymmetrical triple helix | Continuous Rotation | 250-400 | 2.0 Ncm | finishing |

## Protocol

### Glide Path

1. **Scout Canal with K-files** — Negotiate canals with K-files (#10 K-file minimum). Determine working length with apex locator and periapical radiograph. Establish glide path to at least #15 K-file.
   - Pre-curve file for curved canals
   - Use watch-winding motion with hand files
   - Verify smooth, reproducible glide path to at least #15
   - ⚠ Always establish glide path before using rotary files
   - ⚠ Do not force hand files apically
2. **Mechanical Glide Path — One G (Optional)** — Use One G (14/.03) at 300 RPM / 1.2 Ncm to create a reproducible mechanical glide path to working length. Alternatively, use K-files to #15 if One G is not available. _(File: One G (14/.03) · 300 RPM · 1.2 Ncm · Continuous rotation)_
   - One G is part of the Micro-Mega glide path ecosystem
   - Use gentle inward pecking motion
   - Irrigate, recapitulate with #10, re-irrigate after reaching WL
3. **Coronal Pre-flaring — One Flare (Optional)** — For restricted coronal access, use One Flare (25/.09, 17mm length) at 250-400 RPM / 3.0 Ncm to create coronal flaring before shaping. _(File: One Flare (25/.09, 17mm) · 250-400 RPM · 3.0 Ncm · Continuous rotation)_
   - Only use when coronal restriction is present
   - Short 17mm length designed for coronal pre-flaring only
   - Creates space for TS1/TS2 to progress more easily

### Shaping

1. **TS1 (25/.04) to Working Length** — Insert TS1 into the canal using progressive movement in three waves (3 up-and-down movements) until resistance is felt. Perform circumferential brushing movement at resistance to eliminate constraints. Remove, clean grooves, irrigate. Continue progressive downward movement. Average 2-3 passes to reach working length. _(File: TS1 (25/.04) · 300 RPM · 2.0 Ncm · Continuous rotation)_
   - 3-wave progressive pecking: 3 gentle up-and-down movements per pass
   - Circumferential brushing at resistance eliminates primary constraints
   - Clean grooves between passes and irrigate
   - Average 2-3 passes needed to reach apex
   - ⚠ Do not force the file apically
   - ⚠ Always use continuous rotation — never reciprocating
2. **TS2 (25/.06) to Working Length** — Use TS2 with the same 3-wave progressive pecking technique with circumferential brushing at resistance. TS2 enlarges the coronal and middle thirds with its .06 taper while maintaining the same apical diameter. _(File: TS2 (25/.06) · 300 RPM · 2.5 Ncm · Continuous rotation)_
   - Same 3-wave technique as TS1
   - .06 taper provides more coronal enlargement than TS1
   - Same 25 tip — maintains apical preparation size
   - Irrigate, recapitulate with #10, re-irrigate between files

### Finishing

1. **F35 or F40 (If Larger Apical Size Needed)** — If a larger apical preparation is clinically indicated, use F35 (35/.06) for large canals or F40 (40/.04) for large canals with conservative taper. Use the same 3-wave progressive technique. _(File: F35 (35/.06) or F40 (40/.04) · 300 RPM · Continuous rotation)_
   - F35: 35/.06 for large canals needing wider coronal preparation
   - F40: 40/.04 for large canals with more conservative taper
   - Only use if TS2 preparation is insufficient for the canal
   - Verify with corresponding hand file (#35 or #40)
2. **Obturation** — Proceed with final irrigation protocol and obturation. Matching 2Shape gutta-percha points and paper points are available for precise fit.
   - Matching GP points available for TS2 25/.06, F35 35/.06, F40 40/.04 (per 2026 flyer)
   - Verify tug-back with master cone before obturation

## Clinical Tips

- All files use 250-400 RPM (per IFU); 300 RPM is a common working speed
- 2-file core sequence (TS1+TS2) is sufficient for the majority of canals
- 3-wave progressive pecking technique: 3 gentle up-and-down movements per pass
- Circumferential brushing at resistance eliminates primary constraints
- T.Wire = post-grinding heat treatment providing improved cyclic fatigue resistance vs untreated NiTi
- Asymmetrical triple helix (2 main + 1 secondary cutting edge) reduces screw-in effect and improves debris removal
- Maximum 5 canals per instrument if not visually damaged (IFU recommendation)
- Compatible One G / One Flare glide path ecosystem available
- Matching 2Shape gutta-percha and paper points available for TS2, F35, F40 (per 2026 flyer)
- Compatible with all standard endodontic motors (continuous rotation)

## Warnings

- Contains nickel and titanium — do not use on patients with nickel or titanium allergy
- Do not use for retreatment cases (IFU contraindication)
- Check instrument before each use and between canals for signs of damage
- Discard immediately if damaged, deformed, or unwound
- Maximum 5 canals per instrument recommended — do not exceed
- Use continuous rotation at recommended speed (250-400 RPM per IFU) — never reciprocating
- Always establish glide path before using rotary files
- Use rubber dam during treatment
- Do not force files apically — use gentle progressive movement

## Contraindications

- retreatment cases (per IFU)
- children under 2 years of age — ethylene oxide used in sterilization process (per IFU)

## Best for

- simplified 2-file shaping
- EU/ME market standard
- asymmetrical triple helix debris removal

## Technical profile

- **Category:** multi-file-rotary
- **Heat treatment:** Other — T.Wire — post-grinding heat treatment providing improved cyclic fatigue resistance and flexibility vs untreated NiTi
- **Manufacturing method:** ground
- **Pre-bendable:** yes
- **Reuse:** Reusable (limited)
- **Maximum reuse cycles:** 5
- **Motor:** any-rotary
- **Glide path requirement:** optional — One G (14/.03) or manual K-file scouting before rotary shaping
- **Canal suitability:** Curvature: mild, moderate, severe; Canal size: narrow, normal, wide; Calcified canals: no; Retreatment: no; Conservative access: no
- **Matching gutta-percha:** Micro-Mega 2Shape GP Points (TS2 25/.06, F35 35/.06, F40 40/.04)
- **Matching paper points:** Micro-Mega 2Shape Paper Points (TS2 25/.06, F35 35/.06, F40 40/.04)
- **Content revision:** 2026-02-15

## FAQ

**What alloy is 2Shape made from?**

2Shape® is manufactured from T.Wire Heat-Treated NiTi with other heat treatment.

**How many files are in the 2Shape sequence?**

The 2Shape® system includes 4 files: TS1, TS2, F35, F40.

**What motion type does 2Shape use?**

2Shape® uses continuous rotation motion.

**What cases is 2Shape best for?**

2Shape® is best suited for: simplified 2-file shaping, EU/ME market standard, asymmetrical triple helix debris removal.

**What speed and torque settings are recommended for 2Shape?**

Recommended settings: 250-400 RPM and 2.0 / 2.5 Ncm across the file sequence (refer to official DFU for full per-file parameters).

## References

- [Manufacturer instructions for use (DFU/IFU)](https://www.micro-mega.com/wp-content/uploads/2025/02/30005422-B_2_SHAPE-1.pdf)

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