Designed for primary teeth, this short-handled (17–19mm) pediatric file protects delicate canal walls while ensuring efficient debris removal in tight mouth openings.
Roduct Overview
Key Features
Product Video
Clinical Usage Instructions (IFU) — Primary Files
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Step 1: Preoperative radiograph to determine primary tooth root canal length. Explore to working length (WL) using an ISO 10 or 15 manual K-file.
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Step 2: Select appropriate size: narrow canals → #25/04, moderate canals → #25/06 or #30/04, wide canals → #40/04.
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Step 3: Advance with gentle pecking motions at 150–300 RPM (recommended to start at low speed). Primary root canals are short (6–10 mm) — carefully control depth.
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Step 4: After repeated pecking motions until reaching WL, irrigate, dry, and obturate.
Safety Reminders
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The pulp floor of primary teeth is extremely thin — avoid over-enlarging the canal orifice during instrumentation.
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Use a rubber dam when patient cooperation is limited, especially in pediatric cases.
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Primary Files are designed exclusively for primary teeth and must not be used in permanent adult root canals.
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Start at 150 RPM and gradually increase speed based on tactile feedback and procedural feel.
This device is supplied with electronic instructions for use only, which are available in our Download Centre. Safety and performance information is contained therein. Please carefully review the instructions before use.
DENCO Primary Files Specifications
| File Model | Tip Ø (mm) | Taper | Length | Function | Package |
|---|---|---|---|---|---|
| #25/04 | 0.25 | 4 | 17mm, FG | Primary tooth shaping file | 4 pcs/box (single), 4 pcs/box (assorted) |
| #25/06 | 0.25 | 6 | 17mm, FG | Primary tooth shaping file (large taper) | |
| #30/04 | 0.30 | 4 | 17mm, FG | Primary tooth shaping file | |
| #40/04 | 0.40 | 4 | 19mm, FG | Primary tooth shaping file (wide canals) |

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