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Dental treatment system

  • US 5,350,299 A
  • Filed: 03/25/1993
  • Issued: 09/27/1994
  • Est. Priority Date: 03/27/1992
  • Status: Expired due to Fees
First Claim
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1. A system for performing a dental procedure on teeth or associated tooth structure by means of abrasive particles carried by a fluid stream comprising, in combination with a source of fluid;

  • (a) means for increasing the pressure of said fluid to about an initial pressure;

    (b) pressure selection means for selectively providing said fluid at at least a first pressure or a second pressure, each of said first and second pressures being less than about said initial pressure;

    (c) abrasive mixing means for combining the abrasive particles with said fluid at either said first pressure or said second pressure to provide an abrasive-laden fluid stream;

    (d) selectively operable means for activating and deactivating said abrasive mixing means;

    (e) nozzle means for delivering said abrasive-laden fluid stream to the teeth or tooth structure undergoing said dental procedure; and

    (f) means for evacuating excess abrasive materials, post-use abrasive materials and other debris from the area of the mouth of the patient being treated, said evacuation means including means in juxtaposition to the mouth of the patient for creating a negative pressure in the mouth region effective to withdraw abrasive materials and debris from the mouth.

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