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ULTRASONIC DENTAL TOOL WITH WEAR THRESHOLD INDICATOR, WEAR INDICATOR TOOL, AND METHOD OF DETERMINING TOOL WEAR
ULTRASONIC DENTAL TOOL WITH WEAR THRESHOLD INDICATOR, WEAR INDICATOR TOOL, AND METHOD OF DETERMINING TOOL WEAR
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机译:具有磨损阈值指示器的超声牙科工具,磨损指示器工具和确定工具磨损的方法
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摘要
A dental ultrasonic tool configured to connect to a magnetostrictive or piezoelectric transducer of a dental instrument operating in the frequency range between 18 kHz and 50 kHz. The tool includes a tip and a singular surface marking having a minimum width of 0.5 mm disposed on the tip. The tip includes a distal point as a datum. The singular surface marking is spaced-apart from the distal point of the tip and defines at least one edge. The at least one edge is not coincident with a first flexural node of the tip at an operating frequency of the tip. Dental ultrasonic tip wear measurement tools for measuring the wear on a tip are also provided.
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