- Dia-X File is the nickel titanium rotary files with Gold heat treatment can be achieved greater flexibility than other Nickel Titanium Files and offer smoother and safer progression in the root canal. - The fracture resistance has been increased 143% after Gold Heat Treatment. - DX- Check the working length with X-ray. - Prepare the straight-line access to canal orifice. - D1- The D1 expands the glide path and enlarges to widen the coronal portion of canal. - Always irrigate the canal with NaOCl before engaging the file. - Gently work D1 until a smooth glide path is confirmed. - The D1 into the canal and follow the glide path and laterally brush before light resistance is appeared and cut dentin on the outstroke to improve straight-line access and apical progression , continue shaping and brushing with the D1 until the depth of the #15 hand file is reached. - Check the working length with the #15 hand file and Apex locator. - D2- The D2 enlarges to the apical 2/3. - Use D1 or D2 until working length is reached with a brushing action. - Confirm working length frequently as shaping the severely curved canals. - Use D3 as an In-and-out Pecking Motion until the depth of the #20 hand file is reached. - If the #20 hand file is loose at length, proceed to the D4 with corresponding the #25 hand file. - If the #25 hand file is loose at length, proceed to the D5 with corresponding the #30 hand file. **For further product information, please contact Chat Support**