Toothbrush head with means to direct and collect radiation
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United States of America Patent
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Mar 8, 2005
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N/A
app pub date -
Mar 23, 2001
filing date -
Aug 5, 1998
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Abstract
A toothbrush head suitable to direct incident radiation toward a surface of a tooth and to collect emitted radiation from the surface of the tooth, being made at least in past of a material which is transparent to the incident and/or emitted radiation. In preferred embodiments the head includes one or more radiation guiding cores of transparent material.
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