Patent ID: 11877901
Assignee: EXOCAD GMBH
Field: Medical technology (Instruments)
Classification: CPC A  B | IPC A  B

Claim 0:
1. A computer-implemented method for providing a template for a casting matrix configured for casting one or more artificial gingiva parts of a removable denture, the casting matrix comprising one or more recesses, each of the recesses having a 3D geometric form, which is a negative of a 3D geometric form of a respective section of the removable denture with one of the artificial gingiva parts to be casted,
the method comprising:
providing a 3D digital tissue model of tissue of an oral cavity of a patient on which the removable denture is to be arranged,
providing a 3D digital denture model of the removable denture including each respective section thereof using the 3D digital tissue model, the removable denture comprising one or more artificial teeth arranged within the one or more artificial gingiva parts arranged on the 3D digital tissue model,
generating using the 3D digital tissue model and the 3D digital denture model a 3D digital matrix model of the casting matrix, the 3D digital matrix model enveloping each respective section of the 3D digital denture model with the one or more artificial gingiva parts arranged on the 3D digital tissue model,
further comprising manufacturing the casting matrix using the 3D digital matrix model as the template, the manufactured casting matrix being a physical copy of the respective template,
further comprising manufacturing the removable denture, the manufacturing of the removable denture comprising:
arranging the one or more artificial teeth of the removable denture in one or more receptions of the one or more recesses of the manufactured casting matrix, each of the receptions being configured for receiving one of the artificial teeth of the removable denture,
arranging the manufactured casting matrix with the one or more artificial teeth of the removable denture on a physical tissue model, as manufactured using the 3D digital tissue model,
inserting casting material for casting the one or more artificial gingiva parts of the removable denture into remaining free space of the one or more recesses of the manufactured casting matrix arranged on the physical tissue model,
removing the manufactured casting matrix from the physical tissue model, after the inserted casting material is cured,
providing the removable denture comprising the one or more artificial gingiva parts casted using the casting material.