Instrument for delivery of optical energy to the dental root canal system for hidden bacterial and live biofilm thermolysis
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United States of America Patent
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Dec 30, 2008
Grant Date -
Nov 11, 2004
app pub date -
Apr 9, 2004
filing date -
May 8, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system and process for thermolytic eradication of bacteria and biofilm in the root canal of a human tooth involve an elongated and flexible optical probe and a laser oscillator that provides the probe with low infrared energy. The optical probe is sufficiently long for insertion into substantially the entire length of the root canal of the tooth. The optical probe causes lateral dispersion of the radiation from the probe throughout the root canal. The radiation is provided at an energy density and for a period of time that are necessary to selectively target bacteria and live biofilm in the dentinal tubules of an entire root canal system, at once, thereby (1) inhibiting creation of a blackbody 'hot tip', and (2) inducing laser interstitial thermotherapy (LITT) within the root-canal space.
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