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Dental tool

  • US 5,100,321 A
  • Filed: 04/30/1990
  • Issued: 03/31/1992
  • Est. Priority Date: 04/30/1990
  • Status: Expired due to Term
First Claim
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1. A dental tooth cleaning tool comprising a slender but rigid metal tooth cleaning element for connection on one end to a vibrator to vibrate the element at sonic frequencies, and a plastic tip member having a rear end with a socket formed therein, the socket having an end that opens to the rear of said member and that fits onto a free end of said element, said member having a self-supporting free end extending forwardly beyond the socket having an exterior surface to vibrate against the surface of a tooth to remove plaque, said element free end being solid and nontubular so as to have sufficient strength for plaque removal operations, the free end of said tip member having a smoothly curved exterior which does not mar or scratch the surface of the tooth and said tip member, except for said socket, being imperforate and made of plastic material which is rigid and strong and sufficiently thermally stable to withstand the heat generated during use of the tool engaging a tooth.

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