DENTAL TREATMENT APPARATUS AND METHOD OF DRIVING THE SAME
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Mar 24, 2022
app pub date -
Jan 8, 2020
filing date -
Jan 8, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A dental treatment apparatus according to the present invention includes a drive unit that includes a micromotor, a motor driver, and the like, a controller, and a root canal length measurement circuit. The controller controls the cutting tool to be held at a head forward driven in a direction of cutting of an object to be cut. The controller also controls the cutting tool to be reverse driven in a direction reverse to forward rotation drive when the cutting tool is forward driven and the root canal length measurement circuit detects a tip end of the cutting tool reaching a reference position. The controller further carries out a fail-safe control when the cutting tool is reverse driven and the root canal length measurement circuit detects movement of the tip end of the cutting tool toward a root apex position.
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