Patent ID: 8844138
Filing Date: 2014-09-30
Classification: A61C,G16H,Y10T

Abstract:
1. A method for manufacturing a dental prosthesis, comprising: a first step of photographing a mouth with a dental cone beam CT; a second step of converting CT data photographed at the first step into a CAD file; a third step of designing a shape of the dental prosthesis with the CAD file using CAD software; a fourth step of correcting the shape of the designed dental prosthesis using occlusion simulation software; a fifth step of converting the shape of the dental prosthesis which is designed finally into manufacturing data; and a sixth step of transmitting the manufacturing data to a dental prosthesis manufacturing machine, thus manufacturing the dental prosthesis, wherein the dental prosthesis manufacturing machine comprises: first and second spindles each having a roughing tool and a finishing tool which rotate around corresponding rotating axes; a workpiece holder for holding a workpiece which forms the dental prosthesis; and a base supporting the first and second spindles and the workpiece holder, wherein the first and second spindles are placed on the same axis, a first axis, in such a way as to face each other, the workpiece holder moves on a second axis intersecting the first axis and a third axis perpendicular to the first and second axes such that the workpiece held by the workpiece holder is placed between the first and second spindles, and the workpiece is machined by alternately using the roughing tool and the finishing tool according to accuracy which is required when the workpiece held by the workpiece holder is machined, wherein the first and second spindles move on the first axis, and the workpiece holder moves on the second axis and the third axis which is perpendicular to the first and second axes while rotating around the second axis.