# NIC® V File

> Untreated Three-Size Reciprocation

- **Manufacturer:** NIC Dental (Shenzhen Superline Technology)
- **Motion:** Reciprocating
- **Alloy:** MaxTech 1.0 conventional NiTi
- **Key feature:** Three-size single-file reciprocating system (R25/R40/R50, S-shaped, regressive taper) on a 150°/30° alternating program in untreated MaxTech 1.0 wire — the conventional-alloy sibling of the blue V Blue line

## Specifications

| File | Tip (mm) | Taper | Length | Cross-section | Motion | Speed (rpm) | Torque | Role |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| R25 | 0.25 | 8% regressive | 21mm, 25mm, 31mm | S-shaped | Reciprocating | Reciprocating | — | shaping |
| R40 | 0.40 | 6% regressive | 21mm, 25mm, 31mm | S-shaped | Reciprocating | Reciprocating | — | shaping |
| R50 | 0.50 | 5% regressive | 21mm, 25mm, 31mm | S-shaped | Reciprocating | Reciprocating | — | shaping |

## Protocol

### Glide Path

1. **Establish Straight-Line Access and Select the Size** — The manufacturer's catalog describes the V-Series sequence as straight-line access first, then selection of a single file size from the pre-operative radiograph, with each size paired to a stainless steel K scouting file. The catalog names no default size for this series — unlike its W+ entry, which designates a primary file for most cases.
   - Size selection is made from the pre-operative radiograph (catalog)
   - The catalog pairs each file with a stainless steel K scouting file: R25 with a 15, R40 with a 20, R50 with a 30
2. **Scout the Canal by Hand** — Scout and confirm a reproducible pathway with the paired stainless steel K file before the reciprocating instrument is introduced, as the catalog sequence describes. Confirm patency and working length in the usual way.
   - This line is untreated NiTi and NIC publishes no pre-bending claim for it, so a confirmed hand pathway carries more of the work than it would with a pre-bendable wire
   - ⚠ NIC has not issued an IFU for the V File; the steps here come from the catalog sequence and the fact sheet, and the labelling supplied with the product takes precedence

### Shaping

1. **Reciprocate the Coronal Two-Thirds** — The catalog sequence reciprocates the selected file in the coronal two-thirds first, irrigating every three to four pecks, then repeats the cycle advancing toward working length. _(File: Size selected from the radiograph · 150° CCW / 30° CW reciprocating program (fact sheet))_
   - Irrigate every three to four pecks before advancing (catalog)
   - Clean the flutes and recapitulate between cycles
2. **Advance to Working Length** — Repeat the reciprocating cycles until the selected file reaches working length, as the catalog sequence describes.
   - Reconfirm working length before the file is taken to length

### Finishing

1. **Verify the Preparation** — Complete final irrigation, drying, and apical verification before obturation. NIC publishes no apical-gauging scheme for the untreated V File — the gauging figures shown on the V Blue page come from the V Blue IFU and are not stated for this line.
   - Confirm working length and apical fit before sealer placement
2. **Match the Obturation** — The catalog lists a system-matched gutta-percha range for the V-Series in 25, 40 and 50 to correspond with the three file sizes.
   - Confirm cone fit and tug-back radiographically before sealer placement

## Clinical Tips

- No IFU has been issued for the V File. NIC's draft IFU set covers U+, W+, V Blue, KD Blue and MH only, so every statement on this page comes from the manufacturer's fact sheet (2026-08-12) or the 2025 catalog — not from regulatory labelling
- Kinematics per the fact sheet: alternating 150° counter-clockwise / 30° clockwise. Speed and torque are printed as program-defined rather than as numbers, so the file is run in the motor's reciprocating program
- Document conflict, disclosed: NIC's own product website describes the V File as MaxTech 6.0, while the consolidated fact sheet — the source NIC confirmed as correct — states MaxTech 1.0, untreated. This page follows the fact sheet and flags the discrepancy rather than resolving it silently; it is on the open-questions list for the manufacturer
- The V File is the untreated member of the V-Series. It shares the R25/R40/R50 sizes, the S-shaped cross-section, the regressive taper and the 150°/30° program with V Blue; the wire is what differs
- NIC's flexibility and pre-bending claims, and its positioning for curvature up to roughly 30°, are stated for the blue MaxTech 6.0 tier. The obtained documents make no equivalent statement for the untreated MaxTech 1.0 wire, so those claims should not be read across to this line
- NIC publishes no apical-gauging scheme for this line. The 030 / 050 / 060 gauging sequence on the V Blue page is drawn from the V Blue IFU and is not documented for the V File
- NIC's own cross-reference table maps the V-Series to RECIPROC — a manufacturer-claimed correspondence, not an independently verified equivalence
- Catalog sequence: straight-line access, size selected from the pre-operative radiograph, reciprocation in the coronal two-thirds with irrigation every three to four pecks, then repeated cycles to working length
- Catalog and fact-sheet details: 21/25/31 mm lengths, maximum flute diameter 1.2 mm, ring colours red 25 / black 40 / yellow 50, order-code prefix SFV. The fact sheet's shank-length column is empty for every line, so no shank dimension is stated for this file
- Sibling lines on the same fact sheet: V Blue (MaxTech 6.0, already on EndoGuide) and V Mini (MaxTech 6.0, 0.8 mm flute diameter). The catalog also lists a V+ File in MaxTech 3.0 gold, which has no fact-sheet rows and is not published here
- Specifications on this page come from the manufacturer's consolidated fact sheet (2026-08-12, the controlling source) and the 2025 catalog; no independent peer-reviewed performance data exists for any NIC instrument (PubMed, checked 2026-08-11)

## Warnings

- NIC has not issued an IFU for this line. The instructions summarised here come from the manufacturer's catalog and fact sheet, and the labelling supplied with the product takes precedence over anything on this page
- The manufacturer's catalog positions the V-Series in its pre-sterilized blister range as ready to use and single use
- The fact sheet defines this line only in an alternating 150° / 30° reciprocating motion and states no continuous-rotation setting for it
- Because NIC has published no IFU for the V File, this page carries no manufacturer contraindications, handling limits, or sterilization parameters for it — those statements exist only for the five lines with draft IFUs and are deliberately not carried over

## Best for

- single-file shaping with the size chosen from the pre-operative radiograph
- conventional untreated NiTi in the V-Series geometry
- regressive taper to limit coronal removal

## Technical profile

- **Category:** single-file-reciprocating
- **Heat treatment:** Conventional — MaxTech 1.0 in NIC's own tier naming: original NiTi with no heat treatment, per the fact sheet. NIC states no flexibility, cyclic-fatigue or pre-bending claim for this tier, and no independent metallurgical characterization is cited. NIC's product website contradicts the fact sheet here by describing the V File as MaxTech 6.0; the fact sheet governs.
- **Reuse:** Single-use
- **Motor:** any-reciprocating
- **Reciprocation angles:** 150° CCW / 30° CW
- **Glide path requirement:** optional — Stainless steel K scouting file paired per size in the catalog sequence: 15 with R25, 20 with R40, 30 with R50
- **Canal suitability:** Curvature: mild, moderate; Canal size: narrow, normal, wide; Calcified canals: no; Retreatment: no; Conservative access: no
- **Matching gutta-percha:** NIC V-Series gutta-percha (25, 40, 50)
- **Content revision:** 2026-09-10

## FAQ

**What alloy is NIC V File made from?**

NIC® V File is manufactured from MaxTech 1.0 conventional NiTi with conventional heat treatment.

**How many files are in the NIC V File sequence?**

The NIC® V File system includes 3 files: R25, R40, R50.

**What is the NIC V File file sequence?**

NIC® V File offers these files: R25, R40, R50. One shaping file is selected per canal according to the DFU; the protocol section above shows the starting file.

**What motion type does NIC V File use?**

NIC® V File uses reciprocating motion.

**What cases is NIC V File best for?**

NIC® V File is best suited for: single-file shaping with the size chosen from the pre-operative radiograph, conventional untreated NiTi in the V-Series geometry, regressive taper to limit coronal removal.

**What speed and torque settings are recommended for NIC V File?**

NIC® V File uses reciprocating motion with manufacturer-specific motor settings (refer to official DFU for exact parameters).

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