Patent ID: 7887327
Filing Date: 2011-02-15
Classification: A61B,A61C,B33Y,G16H

Abstract:
1. A method of preparing dental prostheses efficiently and accurately using digital and CT Scan imagery to produce a computer generated resin model of a patient's jaw, wherein the improvement comprises the steps of: a. determining a position and angle orientation of at least one implant post in a patient's jaw by utilizing the computer generated resin model; b. marking said position and orientation angle at an edge surface of a stereolithographic resin model; c. drilling a hole at said marked position at said orientation angle into the computer generated resin model of the patient's jaw; d. preparing an anchored anti-rotation analog post for a dental prosthesis for insertion into the mouth of patient, said analog post comprising: an elongated pin having opposite top and bottom ends; said pin having at least one anti-rotation anchoring projection extending discretely and radially from said pin adjacent said bottom end thereof; said at least one anchoring projection comprising a fixed side rod attached to an outer surface of said and extending parallel to a central axis of said pin along said outer surface of said pin and extending up from the bottom end of said pin; e. inserting said anti-rotation analog post into the drilled hole of the computer generated resin model of the patient's jaw; f. forming a surgical guide over said hole, wherein said surgical guide includes a computer generated shape conforming to teeth and outer jaw surface of a portion of the jaw for accepting the implant post; g. drilling holes in the surgical guide conforming to the predetermined location and angle orientation of the implant, and h. placing the surgical guide in the patient's mouth and drilling holes for acceptance of the implant in the patient's jaw.