SEPARATION TOOLS FOR ABUTMENT WINDOW AND METHOD

摘要

Tooling is described to aid in the removal of a cemented retrievable dental prosthesis from an underlying abutment. Methods of forming a gapped space in the abutment under the prosthesis and methods and tools for removing the cemented prosthesis by application of opposing forces to the surfaces forming the gapped space are detailed. A hand held prying tool and a jointed handle pliers are featured. Mechanically assisted tools using a hydraulic jack and an expanding hydrophilic polymer are described. Methods of forming negative draft windows with a dovetail milling cutter are shown. Electric discharge machining of an abutment window with hydrostatic relief grooves is featured.