Toothbrush having soft and hard bristles together
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United States of America Patent
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Nov 14, 2006
Issued Date -
N/A
app pub date -
May 22, 2003
filing date -
Oct 31, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Disclosed is a toothbrush having soft and hard bristles together. The toothbrush having soft and hard bristles with 6 10 mm in tapered length and 0.01 0.08 mm in diameter of end portions comprises: longer bristles(1) located at both edges; and shorter bristles(2) located at the central portion, wherein the bristles are generally in a semicircular form at their top portions when seen from a side, and a difference in length between the longer bristles(1) and the shorter bristles(2) is about 2 4 mm. The toothbrush can increase brushing efficiency and effectively remove foreign matters between teeth and inside periodontal pockets.
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