Dental instrument having overlapping helical scoring pattern

  • US 6,109,918 A
  • Filed: 01/21/1999
  • Issued: 08/29/2000
  • Est. Priority Date: 01/21/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. A dental apparatus, comprising:

  • a tubular, hollow metal handle with first and second ends and an exterior peripheral surface therebetween wherein first and second, different, helical scoring patterns are cut into the handle,first and second closing members wherein each closing member includes a body portion and an attachment portion, wherein each of the attachment portions slidably engages a respective hollow end of the handle and wherein the attachment portions are metallically bonded, without adhesive, to at least one adjacent region of the respective end.

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