[Pedodontic File Systems](https://endo-guide.app/pedodontics)

Continuous rotation

Dentsply Sirona (USA/Switzerland)

# ProTaper Gold (Pedodontics)

Adult system used in primary-tooth literatureFirst-party docs + literature

This is not a dedicated pediatric product. Dentsply Sirona documents ProTaper Gold as an adult system, and the pediatric sequences on this page are adapted from primary-tooth reports and comparative studies.

[ProTaper Gold DFU PDF](https://assets.dentsplysirona.com/dentsply/web/Endodontics/global-page-templates-assets/download-pdf%27s/protaper-gold/ProTaper%20Gold%20ROW%20DFU%20EN.pdf)[ProTaper Gold brochure PDF](https://assets.dentsplysirona.com/dentsply/web/Endodontics/global-page-templates-assets/download-pdf%27s/protaper-gold/ProTaper%20Gold%20ROW%20Brochure%20EN.pdf)[Primary-teeth ProTaper report](https://www.wjoud.com/doi/WJOUD/pdf/10.5005/jp-journals-10015-1192)

Alloy

NiTi (Gold Metallurgy)

Heat Treatment

Gold

Length

21mm

Taper

Variable (progressive)

## File List

SX

#19 (0.19mm) / 3.5-19% progressive

Convex triangular

Coronal shaping / orifice enlargement

S1

#18 (0.18mm) / 2-11% progressive

Convex triangular

Coronal 2/3 shaping

S2

#20 (0.20mm) / 4-11.5% progressive

Convex triangular

Working length shaping

F1

#20 (0.20mm) / 7%

Convex triangular

Apical finishing (narrow canals)

F2

#25 (0.25mm) / 8%

Convex triangular

Apical finishing (medium canals)

## Protocol

1

### 1\. Access & Working Length

Pre-op radiograph to evaluate primary tooth root anatomy and resorption status. Open access cavity. Explore canal with #10 K-file and determine working length radiographically.

2

### 2\. Coronal Flaring

SX (#19, 3.5-19% progressive taper) for coronal 2/3 enlargement. Use brushing motion, pulling outward. Place 3mm beyond the orifice (IJCPD 2023 protocol).

3

### 3\. Shaping

Use S1 or S2 with crown-down technique to working length. Take S2 to working length (IJCPD 2023). 250-300 RPM, torque: SX/S1 = 5.1 Ncm (DFU), S2 = 1.5 Ncm (DFU). In pediatric cases, 250 RPM, 3 Ncm may be preferred. Note: DFU states settings are 'for example only'.

4

### 4\. Irrigation

Irrigate with NaOCl after each file change. Use caution with aspiration in primary teeth — risk of periapical extrusion.

5

### 5\. Apical Finishing

F1 (#20/7%) for final shaping. F2 (#25/8%) for wider canals. Do NOT use brushing motion with F files (DFU). Torque: F1 = 1.5 Ncm, F2 = 3.1 Ncm (DFU).

6

### 6\. Obturation

Dry canal and obturate with CaOH or ZOE-based paste. Use resorbable material (Metapex, Vitapex, ZOE).

## Clinical Tips

- •Crown-down technique: progress from coronal area toward the apex
- •Use brushing motion with SX and S files; do NOT use brushing motion with F files (DFU)
- •Verify working length radiographically in primary teeth — resorption risk
- •Gold metallurgy provides enhanced flexibility and cyclic fatigue resistance
- •Typical pediatric sequence: SX + S2 + F1 (3 files)
- •Working length adjusted to primary tooth root length

## Warnings

- ⚠This is NOT a dedicated pediatric product — standard ProTaper Gold adult files are used in primary teeth
- ⚠Single patient use only — do not reuse, resterilize, or reprocess (DFU)
- ⚠Inspect files before use for deformation and corrosion (DFU)
- ⚠Discard after use in severely calcified or curved canals (DFU)
- ⚠Risk of instrument separation if used improperly (DFU)
- ⚠Primary tooth root resorption risk — do not advance beyond the apex

## Clinical Notes

- →This is not a dedicated pediatric product — standard ProTaper Gold files are used in primary teeth at shorter working lengths
- →Variable (progressive) taper design optimizes canal preparation by region
- →Gold heat treatment (400-450°C): martensitic phase (Af >37°C), enhanced flexibility and cyclic fatigue resistance
- →Convex triangular cross-section — efficient cutting and debris removal
- →IJCPD 2023 study: ProTaper Gold used for primary tooth pulpectomy at 250 RPM, 3 Ncm

## References

- Dentsply Sirona. ProTaper Gold Directions for Use (DFU).
- Patil MB et al. Dentinal Microcracks after Root Canal Preparation in Primary Root: ProTaper Gold vs Kedo-S. Int J Clin Pediatr Dent 2023;16(5):692-697.
- Singh K et al. Pediatric Rotary Endodontics: A Comprehensive Review. Cureus 2025.
- Jeevanandan G. Kedo-S paediatric rotary files for root canal preparation in primary teeth. J Clin Diagn Res 2017;11(3):ZR03-06.

![Uzm. Dt. Levent Yüksel](https://endo-guide.app/images/levent-yuksel.jpg)

Reviewed by

Uzm. Dt. Levent Yüksel

DDS · Endodontist

Endodontist — DDS, Hacettepe University; endodontics specialty training, Ankara University. 10+ years of clinical experience. Independently authored and clinically reviewed.

[About the author](https://endo-guide.app/about)[Editorial policy](https://endo-guide.app/editorial-policy)[Clinical profile](https://drleventyuksel.com/)

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