Patent ID: 6835066
Filing Date: 2004-12-28
Classification: A61C

Abstract:
A process for preparing a dental prosthesis utilizing a CAD/CAM system, comprising the steps of:preparing a plaster model by impression taking within the oral cavity of a patient at a dental office; delivering the plaster model to a measuring center; at the measuring center, storing as a first digital signal, three-dimensional coordinate information of an intra-oral shape measured on a basis of the plaster model; sending the obtained measured data to a design center using a first communication apparatus; at the design center, reproducing the intra-oral shape on a graphic display device based on the received measured data as a three-dimensional graphic, designing a shape of a dental prosthesis and storing that shape as a second digital signal, and then sending the obtained design data of the dental prosthesis to a processing center using a second communication apparatus; at the processing center, transmitting the received design data to a milling processor as a processing command to subject a block material to milling processing to prepare a dental prosthesis; delivering the dental prosthesis to the measuring center; comparing the dental prosthesis with the plaster model at the measuring center by setting the dental prosthesis on the plaster model; and returning the dental prosthesis and the plaster model to the dental office.