The invention relates to a dental prosthesis system that includes a ceramic implant for osseointegration in a jaw bone with a receiving opening for a connection screw and an abutment, preferably made of a ceramic, wherein the abutment can be secured in the receiving opening of the implant by the connection screw made of fiber-reinforced thermoplastic. A screw lock includes first interlocking elements and second interlocking elements, wherein the first interlocking elements are arranged on the connection screw and the second interlocking elements are arranged in the receiving opening of the implant and/or on the abutment. When tightening or releasing the connection screw in the implant, the first interlocking elements are elastically deformed in conjunction with the second interlocking elements.
