An 85-year-old man presented to our hospital with a fractured mandibular complete denture. The denture was temporarily attached to the fractured part. A silicone rubber impression material was used to obtain the impression of the mucosa under the denture base. Occlusal recording material was inserted on the occlusal surface of the artificial teeth, and maxillomandibular relationship record was performed to obtain an increase of approximately 2 mm in vertical dimension. After the working model containing the existing dentures and the opposing dentition model were attached to the articulator using occlusal record, the occlusal surface of the artificial teeth of the existing dentures was reshaped with wax. After scanning the modified denture with an E3 dental scanner, the denture base and artificial teeth were designed separately and saved in the STL format. After the support design was performed using Carima Slicer V2, the denture base and artificial teeth were modeled using an S-WAVE 3D printer IMD-S. After the modeling was completed, cleaning, support removal, post-polymerization, and polishing were performed, and the denture base and artificial teeth were bonded using Digital Denture Bond, an adhesive material for denture bases. After wearing the new denture, a masticatory performance test was conducted by measuring the amount of glucose eluted, and the results showed that the patient had good masticatory performance. These findings suggest the usefulness of applying digital technology to create new dentures in cases of denture fractures and a decrease in the occlusal vertical dimension.