Machinability of high-speed enamel cutting with carbide ...
2020-3-1 · 2.1. High-speed air-turbine handpiece and carbide burs. A high-speed air-turbine handpiece with a 45° elevation angle was used to simulate cutting in a clinic. The handpiece has its own circular water spray hole. When cutting, the jet water can wash away the chips generated during the cutting process and reduce the temperature of the cutting area.
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