Method of producing endodontic instruments
View Patent ↗Methods for manufacturing endodontic instruments are provided. Methods relate to milling a blank with a cutting process to shape the instrument. Instruments so produced are also provided.
1. A method of making an endodontic instrument from a rod form blank of a nickel-titanium alloy, comprising:
milling said rod form blank using a high speed cutting process and a geometrically defined cutting edge of a milling cutter to shape said instrument by cutting material therefrom.
2. A method according to claim 1 , wherein said milling is performed at a cutting speed in the range of 10 m/min to 300 m/min.
3. A method according to claim 1 , wherein said milling is performed with the milling cutter fitted eccentrically above a longitudinal axis of the blank.
4. A method according to claim 2 , wherein said milling is performed with the milling cutter fitted eccentrically above a longitudinal axis of the blank.
5. A method according to claim 1 , comprising supporting the blank with a lateral guide at a side opposite the milling cutter during said milling.
6. A method according to claim 2 , comprising supporting the blank with a lateral guide at a side opposite the milling cutter during said milling.
7. A method according to claim 3 , comprising supporting the blank with a lateral guide at a side opposite the milling cutter during said milling.
8. A method according to claim 4 , comprising supporting the blank with a lateral guide at a side opposite the milling cutter during said milling.
9. A method according to claim 1 , wherein the lateral guide elastically supports the blank during said milling.
10. A method for machining and/or manufacturing endodontic instruments from a blank in rod or wire form, in which a milling method using a geometrically defined cutting edge and cutting removal is used for shaping.
11. The method as claimed in claim 10 , in which a high-speed-cutting milling method is used.
12. The method as claimed in claim 10 , in which the cutting speed V C is in the range from 10 m/min to 300 m/min.
13. The method as claimed in claim 10 , in which the blank is configured from a nickel-titanium alloy.
14. The method as claimed in claim 10 , in which a milling cutter is fitted eccentrically above the workpiece longitudinal axis.
15. The method as claimed in claim 10 , in which the blank is supported on the side which lies opposite a milling cutter.
16. The method as claimed in claim 15 , in which the blank is supported elastically.
17. The method as claimed in claim 15 , in which the support for the blank comprises a lateral guide.
18. A method according to claim 4 , wherein the lateral guide elastically supports the blank during said milling.
19. An endodontic instrument made by the method of claim 1 .