Dental hygienic device
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United States of America Patent
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-
Jul 2, 1985
Grant Date -
N/A
app pub date -
Oct 25, 1982
filing date -
Oct 25, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dental hygienic device comprising an n-type semiconductor disposed on or in a main body consisting of an inserting portion and a handle. At least one portion of the semiconductor is exposed while at least the other portion being located at the inserting portion of said main body. The semiconductor, when irradiated with a natural and/or man-made light, is activated to produce therein a number of holes whereas teeth becomes reverse-phased due to an electron density higher than that in the semiconductor to thereby give rise to a reduction which decompose tartars and colored scales on the teeth.
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