Patent ID: 9138302
Filing Date: 2015-09-22
Classification: A61C,Y10T

Abstract:
1. A method of making a dental workpiece, comprising the steps of suspending machining of the workpiece; exposing the workpiece to a first air jet having a first velocity and provided from a first air nozzle having a first outlet cross-section; exposing the workpiece to a second air jet having a second velocity and provided from a second air nozzle having a second outlet cross-section, wherein the second velocity is lower than the first velocity and the second outlet cross-section is larger than the first outlet cross-section; and causing relative movement between the first air jet, the second air jet, and the workpiece, with performing the relative movement machine controlled according to predetermined position coordinates, the predetermined position coordinates being relative to the first air jet, the second air jet, and the workpiece.