Patent ID: 6106747
Filing Date: 2000-08-22
Classification: A61C,C04B

Abstract:
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.