Method of making crowns and bridges and the occlusal and lingual stamp therefor

摘要

In the method of making dental crowns and bridges, wherein from a bite simulating articulated master model of the patient's jaws, there has been sliced and separated a master die of the particular tooth and adjacent jaw requiring a crown or bridge, the steps of marking a contrasting finish line on and around the master die, and applying a layer of plastic sheet spacing material around said die down to the finish line. Further steps include applying a supportive plastic coping over the spacing material overlapping the finish line, and thereafter trimming said coping at the finish line and simultaneously forming a V- shaped channel around the die in registry with the finish line. Further steps include removing the spacing material and reapplying the master die and coping to the master model. Applying molten wax into the cavity of a preselected metal stamp having an occlusal or lingual anatomy approximating the optimum shape of the particular tooth creating a preformed occlusal pattern the depth of the stamp. Inverting the occlusal pattern while plastic over said coping while applying axial pressure and heat, joining said pattern to said coping, and the final step with the master die removed from the master model, of applying molten wax to all lateral surfaces of the die from the margin to the occlusal pattern contouring same to the anatomical shape of a tooth.P PThe occlusal stamp refers to the posterior occlusal surface of the teeth. PPThe lingual stamp refers to the anterior lingual surface of the teeth.P PThere are two separate stamps the occlusal and the lingual stamp. PPThe occlusal or lingual stamp includes a metal base having a preformed margin defining a cavity adapted to receive molten wax, said cavity being of a predetermined shape of an occlusal or lingual anatomy corresponding to the optimum desired natural shape and size for a particular tooth.