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Method of treatment for and prevention of periodontal disease

  • US 7,497,835 B2
  • Filed: 09/29/2005
  • Issued: 03/03/2009
  • Est. Priority Date: 10/22/2004
  • Status: Active Grant
First Claim
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1. The method of treatment for a periodontal tissue at risk for exhibiting a periodontal disease or periodontal condition in a diagnosed patient comprises the steps of:

  • receiving the diagnosed patient;

    activating an acoustic shock wave or pressure pulse generator or source to emit pressure pulses or acoustic shock waves directed toward the periodontal tissue to impinge the periodontal tissue with shock waves or pressure pulses having a low energy density in the range of 0.00001 mJ/mm2 to 1.0 mJ/mm2, the pressure pulse being an acoustic pulse which includes several cycles of positive and negative pressure, wherein the pressure pulse has an amplitude of the positive part of such a cycle should be above 0.1 MPa and the time duration of the pressure pulse is from below a microsecond to about a second, rise times of the positive part of the first pressure cycle in the range of nano-seconds (ns) up to some milli-seconds (ms), the acoustic shock waves being very fast pressure pulses having amplitudes above 0.1 MPa and rise times of the amplitude being below 100'"'"'s of ns, the duration of the shock wave is typically below 1-3 micro-seconds (μ

    s) for the positive part of a cycle and typically above some micro-seconds for the negative part of a cycle; and

    subjecting the periodontal tissue, or the entire periodontal region of the patient to convergent, divergent, planar or near planar acoustic shock waves or pressure pulses stimulating said tissue, wherein the tissue is positioned within a path of the emitted shock waves or pressure pulses and away from any localized geometric focal volume or point of the emitted shock waves or pressure pulses wherein the emitted shock waves or pressure pulses either have no geometric focal volume or point or have a focal volume or point ahead of the periodontal tissue or beyond the periodontal tissue thereby passing the emitted waves or pulses through the periodontal tissue while avoiding having any localized focal point within the periodontal tissue wherein the emitted pressure pulses or shock waves are convergent, divergent planar or near planar and the pressure pulse shock wave generator or source is based on electro-hydraulic, electromagnetic, piezoceramic or ballistic wave generation having an energy density value ranging as low as 0.00001 mJ/mm2 to a high end of below 1.0 mJ/mm2.

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