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United States of America Patent
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Issued Date -
Feb 15, 2024
app pub date -
Dec 9, 2021
filing date -
Dec 11, 2020
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Abstract
This disclosure provides a toothbrush head and a toothbrush with improved toothbrush bristle configuration comprising different types of bristle filaments in a specified arrangement. Disclosed are toothbrush heads comprising first tufts (5) comprising first bristles (6) and second tufts (7) comprising second bristles (8), wherein the second tufts (7) are positioned outermost closest to the distal end (3A) and outermost closest to the proximal end (3B) on the bristle surface (3), and/or outermost closest to the widthways opposite ends (3C, 3D) on the bristle surface (3), and wherein the second bristles (8) have a stem (19) that splits into split ends (21), and wherein the split ends (21) are chemically tapered. Also provided are toothbrushes comprising said toothbrush heads. The toothbrushes achieve excellent brushing performance, plaque removal from the gingival and subgingival margin and reach into the interproximal spaces. There are also disclosed methods of manufacturing these toothbrushes.
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