Patient-specific mandibular implant inserted into mandibular defect region and method of manufacturing the same

A patient-specific implant inserted into a mandibular defect region, comprising:

• a body (100) having an outer contour corresponding to a mandibular defect region and made of a porous metal material;
• a first fixture (200) fixed to a first defect end formed at one end of the mandibular defect region;
• a second fixture (300) fixed to a second defect end formed at the other end of the mandibular defect region;
• and
• a dental-root restoration section (400) corrected to restore a defective part corresponding to a tooth root in the body, wherein:
• the dental-root restoration section (400) is formed of a dental-root support (410) or a dental-root hole (420) only with respect to a mandible of a tooth junction region;
• the body (100) is made of titanium, and when the body is produced by a 3D printer, the body is produced by a method of melting and laminating a metal material using an additive manufacturing process in which a metal material is melted and then manufactured in the same manner as a generated image;
• the dental-root restoration section (400) is designed in consideration of the pressure applied during chewing between a defective tooth and an upper tooth;
• the dental-root restoration section (400) is 3D-printed based on a root of an opposite tooth that is not defective;
• the dental-root restoration section (400) is inclined at a certain angle from the horizontal plane so that upper and lower teeth are parallel and matched to each other, thereby preventing damage to the teeth during continuous chewing;
• in the 3D printing, when there is no opposite mandibular scan information, when there is no opposite tooth root information, or when a mandible of a deficient patient is completely lost, a new information extraction section acquires information on nationality, gender, and height of the patient, and extracts a defect region using a size, volume, and density of the mandible from a standard mandible DB for each nationality based on the acquired information;
• and
• the standard mandible DB for each nationality is a database made in consideration of a size, volume and density of a mandible for each country, and stores an average mandibular size, volume, and density according to gender or height for each nationality.