Method for manufacturing surgical guide and crown, abutment in mouth for dental implant

A method for manufacturing a surgical guide, and a crown and an abutment in a mouth for a dental implant, comprising:

• a first operation of obtaining a primarily scanned image through scanning of inner and outer surfaces of a denture which has a first image matching groove matched with a tooth implanting portion and in which a plurality of reference markers are attached to an outside thereof, obtaining a secondarily scanned image through oral scanning of upper and lower jaws while the denture is installed, preliminarily matching the secondarily scanned image with the primarily scanned image, obtaining an integrated scanned image by reversing the first image matching groove so that an image of the first image matching groove is dimensionalized from the primarily scanned image, and obtaining a CT image through CT scanning of the upper and lower jaws;
• a second operation of obtaining a three-dimensional occlusion guide image by overlapping the obtained integrated scanned image with the obtained CT image using the reference markers as references and matching the integrated scanned image and the obtained CT image in a main matching process in a difference map from which an image matching degree between the integrated scanned image and the obtained CT image is output;
• and
• a third operation of setting a height of a crown based on the three-dimensional occlusion guide image, and manufacturing a surgical guide including a fixing groove matched with an internal shape of the patient's mouth and a guide hole formed along an implanting position of a fixture corresponding to the set crown.