A multi-piece dental prosthesis system is provided. The system includes an implant which can be implanted into a bone of the patient, an abutment removably connected to the implant by a prosthetic screw, and a ti-base removably connected to the abutment. The system may be used to hold a crown, denture, or partial denture in place.

A dental prosthesis (100) for anchoring in the jawbone (1), comprising a dental implant (110) with an implant body (111) and an abutment (112), a tooth part (120) with an internal guide (122) in the tooth part (120), in particular penetrating the tooth part (120), and a closure body (130) for sealing the dental prosthesis (100) within the internal guide (122) in the tooth part (120), in particular penetrating the tooth part (120). A connecting sleeve (140) is arranged between the closure body (130) and the internal guide (122) of the tooth part (120), by means of which connecting sleeve the tooth part (120) and the dental implant (110) can be connected to one another indirectly, detachably and/or by means of which connecting sleeve the closure body (130) can be releasably locked within the internal guide (122) in the tooth part (120), in particular penetrating the tooth part (120).

An implant fixture is disclosed. The implant fixture contains an elongated shaft section, a head section, wherein the head section comprises at least one concave area for bone growth therein, and a protrusion extending from the head section.

A novel screw-fastening assembly having anti-loosening capabilities includes a first and a second screw elements 11,12 adapted to be screw-fastened; the element 12 includes a recess R, the recess being open toward the element 11; and the element 11 includes an protrusion P, the protrusion being introduced into the recess R in a fastened state. The recess R has an inner peripheral surface formed in a cylindrical shape that is straight along the axial direction. The protrusion P is shaped as a circular column or cylinder having a maximum-diameter portion at one location along the axial direction. The protrusion P and the recess R are eccentric relative to each other such that the maximum-diameter portion of the protrusion and the inner peripheral surface of the recess are in pressure contact only along part of their circumference in the fastened state. The maximum-diameter portion is spaced apart from the base end of the protrusion P by a predetermined distance so as to allow the protrusion to move forward and backward along the axial direction relative to the recess R with the maximum-diameter portion being in pressure contact with the inner peripheral surface of the recess R only along part of their circumference.

An abutment for an endosseous dental implant which abutment can be inserted into a jaw bone and a dental implant including the implant abutment.

A multi-piece dental prosthesis system is provided. The system includes an implant which can be implanted into a bone of the patient, an abutment removably connected to the implant by a prosthetic screw, and a ti-base removably connected to the abutment. The system may be used to hold a crown, denture, or partial denture in place.

Plug-(1,9,10) is a solid shape, fabricated by 3D printers from dental resin, designed in Cylindrical-(1), Conical-(9) and Double Cylindrical-(10) shapes with straight leveled top heads-(2) and with 3 inclined leveled top heads of 30 (3), 45 (4) and 60 (5) for (1,10) with in the center of the top head a shallow Sinkhole-(8) as guidance point and at 0.25 mm a Handling Pin-(6,7) for transport, with a narrow Neck-(7) at the bottom as breaking point after positioning. Plug (1,9,10) is used to close the holes, that are left open after screwing abutments, and prosthetic reconstructions on implants. These screw holes have to be closed. If material obstructs the screw head, it is impossible to unscrew when needed, as screwdrivers will not fit. Plugs are Fabricated precisely in the diameters of the internal walls of the holes, thus creating a friction and a vacuum when placed, and insuring a precise fit without other aids.

A dental implant structure includes a fixture fixed to an alveolar bone, an abutment coupled to the fixture and configured to attach an artificial tooth thereto, and a coupling element configured to couple the fixture and the abutment to each other. In the dental implant structure, the fixture includes a lower fixture portion fixed to the alveolar bone and an upper fixture portion coupled to the abutment, a first thread is formed on a part or all of a surface of the lower fixture portion so as to be fixed to the alveolar bone, the lower fixture portion has a shape extending along a rotation axis of the first thread, a second thread is formed on a part or all of a surface of the upper fixture portion, and the upper fixture portion has a shape extending along a rotation axis of the second thread.

Dental implant, comprising an external thread arranged on an outside of the dental implant for fastening the dental implant to a jawbone. Further, the implant comprises an opening extending along a longitudinal axis of the dental implant, in which opening an internal thread for fastening a superstructure to the dental implant is arranged. Still further, the implant comprises an interface for fastening the superstructure to the dental implant, which interface is arranged at a front end of the dental implant. The interface is suitable for direct attachment of a superstructure to the dental implant without the use of an abutment.

A temporary cylinder for snap-in retention with an elongate dental implant includes an elongate body extending from a first end to a second end, the elongate body being generally cylindrical and having an upper portion and a lower engagement portion and the temporary cylinder's lower engagement portion includes a male irregular hexagonal plug, and wherein the dental implant includes a female regular hexagonal socket, and wherein the male irregular hexagonal plug and the female regular hexagonal socket are configured for inter-engagement with each other, and the fitment of the irregular hexagonal plug and regular hexagonal socket together with one another results in a frictional fit when inter-engaged.