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Process for manufacturing prostetic dental reconstructions

  • US 6,106,747 A
  • Filed: 11/21/1997
  • Issued: 08/22/2000
  • Est. Priority Date: 03/28/1995
  • Status: Expired due to Fees
First Claim
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1. A method for producing a dental prosthesis to be fitted to a fitting member, the fitting member comprising a corresponding anatomical dental feature within a patient'"'"'s mouth, an abutment, or a corresponding mounting, said method comprising:

  • determining the three-dimensional contours of the fitting member,producing a three-dimensional form of the dental prosthesis, enlarged by a predetermined enlargement factor, from a presintered and/or compacted tooth replacement material,producing

         1) a working stump that is enlarged by said predetermined enlargement factor and which corresponds to a portion of the three-dimensional contours of the fitting member; and

    /or

         2) a working pack that is enlarged by the predetermined enlargement factor and which corresponds to a portion of the three-dimensional contour of the outer shape of the form;

    said working stump and/or said working pack being produced from a material which has approximately the same shrinkage factor as the tooth replacement material,placing the working stump in the form and/or packing the working pack around the outside of the form to completely cover the form,sintering the form with the working stump and/or the working pack, whereby the form is stabilized and becomes said dental prosthesis during said sintering, andseparating the working stump and/or the working pack from the dental prosthesis after said sintering.

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