A dental implant system includes a dental implant, an abutment adapted to be inserted in an axial hole of the dental implant, and a locking screw adapted to be inserted in an axial through-hole of the abutment and to be screwed into the axial hole of the dental implant. The axial through-hole defined in the abutment includes a frustoconical portion configured to come into contact with a correspondingly frustoconical portion of the locking screw, wherein the median circumference of the frustoconical contact surface between the abutment and the tightening screw is configured to be disposed under the crest/connection line.

A dental implant assembly (200) configured to be positioned in an osteotomy cavity formed in a patient's jawbone. Abase member (204) of the implant is positioned into the cavity. The base member serves as a platform to secure an abutment member (202) of the implant that in turn receives a dental restoration, such as a crown or denture.

Disclosed is a dental implant abutment having a function of buffering occlusal force transmitted through a prosthesis and configured to be elastically coupled to the prosthesis without using an adhesive. A prosthesis fastening protrusion protrudes outward from an outer surface of an upper portion thereof on which a prosthesis is mounted. The diameter of the prosthesis fastening protrusion being greater than the diameter of a portion located directly therebelow. Indentations divide the upper portion of the abutment into a plurality of sections. The indentations continuously extend downward a predetermined length from a top end surface of the abutment. A predetermined lengthwise portion of each of the indentations has a spiral or oblique shape.

The present invention proposes an implant assembly provided with an abutment that enables easy coupling with a crown. An abutment (20) according to the present invention has a fastening depression (24) that is formed in the center thereof and a top inclined surface (22) that increases outward from the top end of the fastening depression (24), and is fixed to the upper portion of a fixture (80) that is fixed to the alveolar bone. A crown link (30) has a bottom inclined surface (32) and a crown support portion (36). When the crown link (30) is placed on the abutment (20), the top inclined surface (22) and the bottom inclined surface (32) are coupled to each other, and simultaneously the through hole (38) of the crown link (30) and the fastening depression (24) of the abutment (20) are coaxially aligned with each other.

A temporary alignment system and method for holding a dental coping to an implant abutment using the same threads in the abutment that are used for definitive attachment are disclosed. The disclosed temporary fasteners initially orient and hold a coping against an abutment with a force along the same axis as the semi-definitive screw. The aligned coping can be picked-up in a closed-tray impression process without unscrewing the temporary fastener. Embodiments include threaded posts that release copings from the abutment through axial forces. Some embodiments include a threaded post with separable cap that is picked-up with the coping. Methods for converting an existing prosthesis for screw attachment to implants in a single visit and digital capture of the converted prosthesis are described.

A dental implant system including an implant and an abutment is disclosed. The implant includes a generally cylindrical body, a central axis, a distal end for anchoring in a patient's bone and a proximal end opposing the distal end. The proximal end includes a roughened lateralized surface that surrounds an abutment-engaging region. The lateralized surface is disposed at a negative slope relative to the central axis. The abutment includes an upper portion for supporting a tooth-like prosthesis and a lower portion for engaging the abutment-engaging region of the dental implant. The diameter of the lower portion of the abutment is smaller than the diameter of the implant at its proximal end. The lower portion includes a first surface with a soft-tissue enhancing material. The first surface and the lateralized surface defining a circumferentially extending recess having a V-shaped cross-section for receiving and attachment to the soft tissue.

The invention relates to an abutment for use in a dental implant system, wherein the abutment is provided with a guiding and lock for associating the abutment to a dental implant, the guiding and lock including: a first conically tapered section; a second substantially non-tapered section arranged apically adjacent to the first section, the second section being provided with an anti-rotational means; and a third substantially circular cylindrical section arranged apically adjacent to the second section, such that to provide axial guiding to the abutment upon the insertion thereof into a dental implant. Further, the invention relates to a dental implant formed in a similar manner.

A dental prosthesis system, for the use with at least two dental implants, wherein the dental prosthesis is divided in a first prosthetic part and a second prosthetic part, jointed by a prosthetic screw, and wherein the first prosthetic part is connected to the dental implants through at least two connectors, and such dental prosthesis has an engaging and guidance system, including two female elements, disposed on the top of the first prosthetic part, and two corresponding male elements, disposed on the bottom of the second prosthetic part, whereby the connection between the two female elements and the two male elements is releasable. The problems solved in the prior art are related to a bending moment derived from masticatory forces. The solution comprises installing a mechanical weakness in the prosthesis to protect the bone tissue.

A dental prosthesis implant which has an endosseous implant portion extending along an implant axis and a transgingival portion extending from the implant portion and forming an implant-prosthetic connection platform is provided. The implant-prosthesis connection platform extends perpendicularly with respect to a prosthetic axis, the prosthetic axis being inclined with respect to the implant axis. The transgingival portion forms a side wall with a diameter equal to or smaller than the diameter of the endosseous implant portion and progressively decreasing at least in a distal transgingival portion ending with the implant-prosthesis connection platform.

A temporary alignment system and method for holding a dental coping to an implant abutment using the same threads in the abutment that are used for definitive attachment are disclosed. The disclosed temporary fasteners initially orient and hold a coping against an abutment with a force along the same axis as the semi-definitive screw. The aligned coping can be picked-up in a closed-tray impression process without unscrewing the temporary fastener. Embodiments include threaded posts that release copings from the abutment through axial forces. Some embodiments include a threaded post with separable cap that is picked-up with the coping. Methods for converting an existing prosthesis for screw attachment to implants in a single visit and digital capture of the converted prosthesis are described.