Patent ID: 6821115
Filing Date: 2004-11-23
Classification: A61C

Abstract:
An apparatus for preparing at least one tooth for receiving a dental element using a mould model at least including one model tooth, comprising:at least one positioning body being designed to be inserted into an impression of a tooth to be prepared; a mould spoon including a spoon base and a plurality of segments and being designed to produce a mould model including at least one model tooth being designed to be connected to said positioning body, said segments being designed to be filled with a hardenable mass and being designed and arranged to be separately removable from said spoon base, said spoon base including a plurality of threaded sockets; at least one parallelizing body being designed to be placed upon said positioning body being connected to said model tooth to define a preparation axis; at least one preparation base bar being designed to be connected to said threaded sockets and including sliding elements; at least one transmitting unit being designed to be placed upon said parallelizing body and on said preparation base bar to transfer a reference plane perpendicular to the preparation axis to said preparation base bar; at least one tub being designed to be arranged on one of said threaded sockets to be filled with a hardenable mass; at least one transport arm mechanism being designed to be placed upon said transmitting unit and to align the plane of said preparation base bar to be parallel to the reference plane; at least one unit including position stabilizing arms and being designed to be placed upon said sliding elements; a plurality of model transfer bodies being designed to transmit a copying model of the prepared mould model to said mould spoon with positional accuracy; and at least one copying grinding unit being designed to grind the at least one tooth to be prepared scanning the copying model.