Apparatus and method for producing a dental prosthetic with a device having a linear rotary bearing
AssigneeVictor J. Hajjar
InventorsVictor J. Hajjar, John Robert Studer
Life of this patent
Estimating the term…
Abstract
The present invention is directed to enhancing the accuracy with which tooth restorations are machined, using a device which can accurately copy mill a dental prosthetic blank from a previously formed dental prosthetic model, and which can closely replicate the feel of a dental tool to which dentists are accustomed. The device uses a tool supported on a linear rotary axis to mill the dental prosthetic blank. In addition, exemplary embodiments are directed to the preparation of a hybrid dental prosthetic blank which can be easily machined.
Claims12
An apparatus for producing a dental prosthetic comprising:
- means for holding a dental prosthetic model and a dental prosthetic blank having exterior dimensions matched to those of said prosthetic model;
- and
- means for machining a three-dimensional surface of said dental prosthetic blank to match a three dimensional surface of said dental prosthetic model, said holding means being rotatable about at least a single axis, and said machining means having at least one arm mounted for linear, rotary motion on a linear axis, the at least one arm being slidable along and pivotable about the linear rotary axis.
A method for producing a dental prosthetic comprising the steps of:
- providing a dental prosthetic model;
- providing a dental prosthetic blank having exterior dimensions matched to those of said dental prosthetic model;
- placing said dental prosthetic model and said dental prosthetic blank in holding fixtures for machining said dental prosthetic blank;
- moving said holding fixture of said dental prosthetic blank in a single rotary axis;
- and
- moving a cutting tool supported on a linear rotary axis to mill said dental prosthetic blank.
Dependencies are inferred from the claim text.