Endo Files

Endo Files

1. K File

   • flute angle 90o
   • square or triangle
   • reaming
     • preferred
   • filing
     • transportation

2. Hedstrom

   • circular
     • spiral groove in shank
   • filing
     • best
   • reaming
     • can fracture
   • good for GP removal
   • >rake angle, >cutting efficiancy

3. Barbed Broach

   • sharp coronally oriented barbs
   • removal vital pulp

4. C Files

   • square

5. NiTi

6. ISO Standards

   • ISO Normed
     • defined increase in top diameter
       • 0.05 to 0.10 mm depending on file size
     • 16mm section cutting flutes
     • different lengths
       • 21, 25, 31mm
     • Taper
       • 0.32mm over 16mm
       • 0.02mm increase per mm of flute length (0.02 taper)
       • D0 CS diameter at first rake angle
         • D1 1mm coronal to DO
           • D2 2mm coronal to DO
             • Up to D16 (largest)
               • Difficult to go from 10 to 15 Kfile half size to 17.5

7. K-Flex

   • rhomboid
   • acute angle <60o so 2 sharp blades
   • ream or file
   • narrower diameter so more flex

8. Reamers

   • square or triangle
     • no longer recommended

9. GG

   • size 1-6
     • diameters 0.5 to 1.5mm
   • safe tip
     • side cutting
       • cut as you draw out
   • 750-1500rpm
     • outer wall, away from curvature