Pedodontic File Systems
Alloy
Heat-treated NiTi
Heat Treatment
Heat-treated NiTi (manufacturer: "NiTi con tratamiento térmico")
Length
17mm, 19mm
Taper
4% / 6%
File List
EK1
#25 / 4%
Triangular
Narrow canals (mesial of posterior primary teeth)
EK2
#25 / 6%
Triangular
Medium canals
EK3
#30 / 4%
Triangular
Wide canals (distal/palatal)
EK4
#40 / 4%
Triangular
Very wide canals / Anterior teeth (19mm)
Protocol
1
1. Radiographic Evaluation
Radiographic evaluation and access cavity preparation.
2
2. Glide Path
Glide path: #10 K-file, negotiate to working length up to #20 K-file.
3
3. Canal-Size-Dependent File Selection
Narrow canals (K#15 at WL): EK1 (#25/4%) single file. Medium canals (K#20 at WL): EK1 (#25/4%) → EK2 (#25/6%). Wide canals (K#25 at WL): EK2 (#25/6%) → EK3 (#30/4%). Anterior/very wide (K#30 at WL): EK4 (#40/4%, 19mm) single file.
4
4. Settings & Motion
Continuous rotation: 350 RPM, 4 Ncm per manufacturer PDF. Reciprocation option: 150°/30° or 210°/90°, 350 RPM, 2-4 Ncm.
5
5. Irrigation
NaOCl irrigation after each file, EDTA final rinse.
6
6. Obturation
Obturation with resorbable material.
Clinical Tips
- •350 RPM, 4 Ncm (continuous) per manufacturer Rotatory Kids PDF
- •Reciprocation available: 150°/30° or 210°/90°, 350 RPM, 2-4 Ncm
- •Canal-size-dependent protocol — 1-2 files per canal, not a sequential system
- •EK1 and EK2 share #25 tip — EK1 (4%) for narrow, EK2 (6%) for medium canals
- •EK4 is longer (19mm) for anterior primary teeth with longer roots
- •Kit includes 3x EK2 (most frequently used file)
Warnings
- ⚠Do not force beyond the apex
- ⚠Do not apply excessive pressure — dentin walls are thin
Clinical Notes
- →Alloy: heat-treated NiTi per manufacturer ("NiTi con tratamiento térmico"). Faus-Matoses et al. 2023 characterizes alloy as CM Blue Wire NiTi via EDX analysis — this is a researcher designation, not manufacturer terminology.
- →Triangular cross-section per manufacturer ("sección triangular")
- →Canal-size-dependent protocol — 1-2 files per canal, not a sequential system
- →EK1 and EK2 share #25 tip: EK1 (4%) for narrow, EK2 (6%) for medium canals
- →EK4 is longer (19mm) for anterior primary teeth with longer roots
- →Compatible with both rotary and reciprocating motion per manufacturer PDF
- →Kit includes 3x EK2 (most frequently used file)
- →Continuous rotation: 350 RPM, 4 Ncm per manufacturer Rotatory Kids PDF (endogal.es). Note: Faus-Matoses 2023 cites 300 RPM / 2.3 Ncm as 'per manufacturer's instructions' but this contradicts the manufacturer PDF.
References
- Endogal Rotatory Kids PDF. Galician Endodontics Company S.L., Sarria, Lugo, Spain. endogal.es/wp-content/uploads/2021/02/endogal-rotatory-kids.pdf
- Faus-Matoses V et al. Influence of Rotational Speed on Cyclic Fatigue Resistance of CM Blue Wire NiTi Files. Applied Sciences 2023;13(7):4612.
- Faus-Llácer V et al. Root Canal Dentin Removal Capacity of NiTi Reciprocating Systems in Primary Teeth. J Clin Med 2022;11(2):338.
- Harish V et al. Revolutionizing Pediatric Endodontics: An In-Depth Review. AJM 2025;8(1).
Powered by:Dr. Levent Yuksel