TOOTHBRUSH FOR PROMOTING PLAQUE REMOVAL AND MANUFACTURING METHOD THEREFOR
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United States of America Patent
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Dec 15, 2022
app pub date -
Jul 14, 2020
filing date -
Jul 14, 2020
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Abstract
A toothbrush for promoting plaque removal, and a manufacturing method therefor are proposed. The toothbrush includes: a head part in which elements for cleaning teeth are arranged; a first electrode on the head part; a second electrode on the head part, the second electrode being spaced a predetermined distance from the first electrode and grounded; and a voltage supply part configured to superpose alternating current (AC) voltage and direct current (DC) voltage and apply the AC voltage and the DC voltage together to the first electrode.
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