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Test equipment and portable test device

  • US 8,359,179 B2
  • Filed: 02/08/2003
  • Issued: 01/22/2013
  • Est. Priority Date: 02/08/2002
  • Status: Expired due to Fees
First Claim
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1. A portable apparatus for detecting a dental condition in dental hard tissue by applying electrical stimulus to the dental hard tissue in a dental system and acquiring response of the dental system, the apparatus comprising:

  • signal generation means;

    signal receiving means;

    signal processing means; and

    electrode means which are, in use, applied to an outer surface of the dental hard tissue,wherein a generated signal is applied to the outer surface of the dental hard tissue by said electrode means, a response signal is detected by said electrode means and received by the signal receiving means, the applied and received signals undergo processing by the signal processing means,wherein the signal generation means and signal receiving means are configured to apply the electrical stimulus to the outer surface of the dental hard tissue having an impedance of at least 100 kOhms and wherein the signal processing means is configured to process the generated signal so as to detect a dental condition in the said dental hard tissue.

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