Kids-e-Files

Alloy

CM-Wire NiTi

Heat Treatment

Rainbow Surface Technology (3-stage heat treatment)

Length

17mm

Taper

File List

K1 (Yellow)

#20 / 4%

Triangular

Shaping

K2 (Red)

#25 / 4%

Triangular

Shaping

K3 (Blue)

#30 / 4%

Triangular

Finishing

K4 (Black)

#40 / 4%

Triangular

Finishing / Wide canals

Protocol

1. Canal Assessment

Evaluate primary tooth root canal anatomy and root resorption status with radiograph. Determine working length.

2. Glide Path

Create glide path with #10-15 K-file to working length. Confirm canal patency.

3. Shaping

K1 (#20) -> K2 (#25) -> K3 (#30) sequence. K4 (#40) for wider canals if needed. Approx. 300-400 RPM, 1.0-2.0 Ncm torque. Advance in short pecking motions (2-3mm).

4. Irrigation

Irrigate with NaOCl after each file change. Final irrigation: NaOCl + 17% EDTA.

5. Obturation

Dry canal and obturate with appropriate material (Metapex, ZOE-based, or MTA).

Clinical Tips

•Use approx. 300-400 RPM, 1.0-2.0 Ncm torque (exact values not specified in manufacturer DFU)
•Advance in short pecking motions (2-3mm), do not force beyond the apex
•Irrigate with NaOCl after each file change
•Enhanced cyclic fatigue resistance via Rainbow Surface Technology
•ISO color coding: K1=Yellow (#20), K2=Red (#25), K3=Blue (#30), K4=Black (#40)

Warnings

⚠Do not advance beyond the apex due to physiologic root resorption
⚠Monitor torque limits (approx. 1.0-2.0 Ncm)
⚠Single-use instrument — do not reuse
⚠Check file integrity before use
⚠Primary tooth dentin walls are thin — do not apply excessive pressure

Clinical Notes

→CM-Wire NiTi alloy (Rainbow surface treatment is a separate technology, not the alloy type)
→Rainbow Surface Technology — enhanced cyclic fatigue resistance through 3-stage heat treatment
→Triangular cross-section — efficient cutting and debris removal
→Variable pitch design — reduces fracture risk
→Non-cutting safety tip — prevents perforation risk
→Kids-e-Dental LLP (Mumbai, India) — parent company: Laxmi Dental Limited
→RPM/torque values are not confirmed in manufacturer DFU; values are general clinical ranges for CM-Wire NiTi pediatric files

References

Jeevanandan G. J Clin Diagn Res. 2017;11(3):ZC29-ZC34 (PMC5427458) — pediatric rotary file comparison
Govindaraju L et al. Int J Clin Pediatr Dent. 2018;11(5):416-421 — primary tooth pulpectomy efficacy
Harish V et al. Revolutionizing Pediatric Endodontics: An In-Depth Review. MedJournal.co.in — Kids-e-Files system review
Kids-e-Dental All Products Catalogue, April 2025 — manufacturer product catalogue