GUIDELINES FOR USE:
＊ Explore the canal by using #10, or #15 stainless steel hand files
＊ Irrigate, then expand a glide path by C C- - PATH FILE #12.5, or #15, or#20.
＊ In the presence of an irrigant, initiate shaping procedures starting with the Primary W-ONE file (RED)..
＊ Since most canals are between 9 and 15 mm in length, use a gentle inward motion, with short 1- - 2 mm amplitude strokes, until it does not easily progress anymore.
＊ It is important to withdraw the Primary W-ONE file every 3mms to remove the debris and inspect its cutting flutes. Irrigate, re-capitulate with a #10 K File and irrigate again.
＊ Repeat Steps 4 and 5, two to three times until final working length has been achieved with the Primary W-ONE file.
＊ Methods for confirming the finished shape may include: 1) Checking if the apical flutes of the file are loaded with dentine. Irrigate, recapitu-late with a #10 K File and re-irrigate. 2) Gauge the size of the foramen with an ISO hand file that has the same diameter as the Primary V-TAPER? ONE file carried to working length. If the gauging hand file is snug at length, the preparation is finished. If the gauging file is loose at length, generally use a Large W-ONE file (DARK GREEN) to finish the preparation.
＊ In very rare cases you need to select the Small W-ONE file (YELLOW) if the Primary W-ONE file (25/08, RED) will not readily advance to the desired length. Use this Small W-ONE file to either initially or fully shape the apical one-third