The overdenture holder device includes a holder abutment in which a through insertion portion is formed to be opened in both directions of a body portion having a bottom end portion inserted into a top end of the fixture and protruding upward and a fastening hole penetrates along a longitudinal direction and has an inner circumferential side on which a holding step protruding radially inward is formed, a fastening screw having a bottom end portion inserted into the fastening hole to be screw-coupled with the inside of the top end of the fixture and a head portion formed at a top end portion and to be held by the holding step, and a pressurizing device coupled with a top end of the body portion and configured to provide a pressurizing force such that an outer surface of the fixing bar is fixed to an inside of the through insertion portion.

Embodiments of the present invention provide an osseointegrative implant and related tools, components and fabrication techniques for surgical bone fixation and dental restoration purposes. In one embodiment an all-ceramic single-stage threaded or press-fit implant is provided having finely detailed surface features formed by ceramic injection molding and/or spark plasma sintering of a powder compact or green body comprising finely powdered zirconia. In another embodiment a two-stage threaded implant is provided having an exterior shell or body formed substantially entirely of ceramic and/or CNT-reinforced ceramic composite material. The implant may include one or more frictionally anisotropic bone-engaging surfaces. In another embodiment a densely sintered ceramic implant is provided wherein, prior to sintering, the porous debound green body is exposed to ions and/or particles of silver, gold, titanium, zirconia, YSZ, α-tricalcium phosphate, hydroxyapatite, carbon, carbon nanotubes, and/or other particles which remain lodged in the implant surface after sintering. Optionally, at least the supragingival portions of an all-ceramic implant are configured to have high translucence in the visible light range. Optionally, at least the bone-engaging portions of an all-ceramic implant are coated with a fused layer of titanium oxide.

A dental implant system can include an upper implant body coupled to a lower body with a cavity between the upper and lower implant bodies. The system can further include an anchor at least partially disposed within the cavity. The system can also include an abutment that couples to the anchor and serves as a mounting area for a crown. The anchor can be rotatable and swivelable, allowing the lower implant body to be implanted at an angle in bone while permitting the crown to be positioned in a natural tooth orientation.

A series of abutments for dental use and a method for selection an abutment therefrom and aligning the abutment in a patient mouth. The series includes at least three abutments. Each abutment includes a first mate of a polygonal rotation preventive adapter having an axis of rotation perpendicularly to a lateral cross section, and a support member extending from a proximal end of the first mate and having rotational symmetry to the axis of rotation. A projection of the support member on a plane of the lateral cross section in at least one abutment, is asymmetric with respect to angle bisectors and medians of the polygonal shape. An angle between a straight line extending from the axis of rotation to a reference point on a projection circumference of the support member forms a unique offset angle with a side of the polygonal shape per each dental abutment in the series.

The present disclosure provides a scan posts system with a plurality of scan posts. Each scan post includes a scan post core and a scan post body surrounding the pillar of the core and resting in the shoulder of the core, wherein at least part of the scan post body is intended to be in contact with healing tissue. The scan post body of each scan post belongs to a group of scan post bodies comprising at least a combination of two different shapes with three different sizes and at least one height. Each scan post body includes at least one scan mark, the scan mark being suitable for providing information about the shape, size and height of the scan post to a scanning device, this information being useful for designing a dental implant prosthesis. The present disclosure also provides a method of manufacturing a dental implant prosthesis using such a scan post system.

Molds for fabrication of custom and potentially modifiable abutments and impression posts for dental implants with various degrees of angulations (including zero degrees) and various dimensions are provided, with a generally oval shape that expands laterally upwards, a symmetrical or asymmetrical cross-section, and regular surfaces, that are fabricated as one piece, or as two coupling pieces snapping onto each other. Custom abutments achieve the development of a custom gingival emergence profile, three dimensionally, which is potentially modifiable according to the needs of each particular clinical case. Custom impression posts that correspond in dimensions and angulations to the abutments allow the accurate recording and transfer of the developed gingival emergence profile from the mouth onto the working cast, where the final implant prosthesis is fabricated. Custom abutments and impression posts have properties and design that allows their preparation and usage as temporary abutments for the cementation and support of temporary prostheses.

The invention relates to an abutment (100), in particular for dental interventions in assisted surgery, comprising: —a first element (1), comprising a lower cylindrical element (2) and a semi-spherical element (3) integral above with said cylindrical element (2), divided into a plurality of segments, held together by an outer element (4), in the transition zone between said lower cylindrical element (2) and said semi-spherical element (3) there being provided, internally, a shoulder (7), said semi-spherical element comprising a thread (5), ending at said shoulder (7), in which a centrally perforated screw (6) is coupled, a plurality of steps or protrusions (8) being provided on said lower cylindrical element (2); —a second element (10), comprising a first upper cylindrical element (11), which inserts inside said cylindrical element (2) of said first element (1) and equipped externally with a plurality of steps or protrusions (12), which are able to move vertically with respect to staid plurality of steps or protrusions (8) provided on said cylindrical element (2), and a lower semi-spherical element (13); and —a third semi-spherical element (16), divided into a plurality of segments, and ending with coupling means (14) with a dental implant (15).

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 dental prothesis subsurface assembly including an O-ball joint distal from a neck, the neck having a smaller diameter than the O-ball and extending from an implant or an abutment, and a polymeric sleeve having a first inner diameter portion and a different second inner diameter portion the second inner diameter portion or the first inner diameter portion adapted to overlie the neck and the O-ball joint and having a portion of the O-ball joint extending into the other portion, the other portion adapted to receive a socket of a prothesis to prevent direct contact between the O-ball joint and the socket. Additionally, a process of joining a prosthesis to an implant including placing a polymeric sleeve over the O-ball joint and the neck of the implant and inserting a socket of the prosthesis over the sleeve joining the prosthesis and the implant without direct contact therebetween.

Disclosed is a digital overdenture holder device, which is configured to be fixed to a plurality of fixtures implanted into a target arch to detachably fasten a digital overdenture so as to connect a fixing bar to the plurality of fixtures to an oral cavity. The digital overdenture holder device includes a holder abutment in which a through insertion portion is formed to be opened in both directions of a body portion having a bottom end portion inserted into a top end of the fixture and protruding upward and a fastening hole penetrates along a longitudinal direction and has an inner circumferential side on which a holding step protruding radially inward is formed, a fastening screw having a bottom end portion inserted into the fastening hole to be screw-coupled with the inside of the top end of the fixture and a head portion formed at a top end portion andto be held by the holding step, and a pressurizing device coupled with a top end of the body portion and configured to provide a pressurizing force such that an outer surface of the fixing bar is pressurized and fixed to an inside of the through insertion portion.