Oral care implement and filament for the same
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United States of America Patent
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Sep 20, 2022
Grant Date -
Jun 20, 2019
app pub date -
Feb 26, 2019
filing date -
Aug 29, 2016
priority date (Note) -
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Abstract
A mechanically tapered bristle filament for an oral care implement. The filament is characterized by a long thin tapered end portion. The tapered end portion has a taper length and tip diameter comparable to chemically tapered filaments. The areal surface roughness of the tapered end portion however is greater than chemically tapered filaments thereby producing increased scrubbing action against the surfaces of the teeth. The foregoing taper and roughness characteristics of the present filament enhance inter-dental cleaning effectiveness.
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