A fastening device for a dental prosthesis, in particular for use with a plurality of implants in the mouth of a patient, has a lower part, which is connectable to an implant along a first axis and has a holding element which is arranged along a second axis and is enclosed by an upper part, wherein the upper part is suitable for connection to a dental prosthesis, wherein an adhesion gap is formed between upper part and lower part and, after introduction of an adhesive material, permits a compensation between upper part and lower part.

A denture retaining system and a denture bar constructed to be affixed in a human mouth, the denture bar including a distal end, lingual-side surface, vestibular-side surface, bone-facing surface and superstructure-facing surface opposite the bone-facing surface. The bone-facing surface at the distal end is relieved from the superstructure-facing surface at the distal end by an angle of between 10 and 25 relative to an axis perpendicular to a longitudinal plane passing through the lingual side and vestibular side surfaces of the denture bar. The system also includes an overdenture superstructure having a distal surface that substantially conformingly mates to the denture bar distal end when the overdenture superstructure is positioned against the denture bar superstructure-facing surface, and is coupled to the denture bar by at least one attachment element located at a position to an anterior side of a first molar position.

A denture retaining system and a denture bar constructed to be affixed in a human mouth, the denture bar including a distal end, lingual-side surface, vestibular-side surface, bone-facing surface and superstructure-facing surface opposite the bone-facing surface. The bone-facing surface at the distal end is relieved from the superstructure-facing surface at the distal end by an angle of between 10 and 25 relative to an axis perpendicular to a longitudinal plane passing through the lingual side and vestibular side surfaces of the denture bar. The system also includes an overdenture superstructure having a distal surface that substantially conformingly mates to the denture bar distal end when the overdenture superstructure is positioned against the denture bar superstructure-facing surface, and is coupled to the denture bar by at least one attachment element located at a position to an anterior side of a first molar position.

An implant-supported dental prosthesis, removal device for automatically removing the prosthesis, attachment piece for attaching the prosthesis to implants and an attachment bar for attaching the prosthesis to implants. The prosthesis comprises a compartment with a spacing member that can be actuated through a side opening by means of the device, for automatically removing the prosthesis. The device comprises a head with a first plunger configured for being introduced in the compartment and moving the first plunger in both directions to move the first plunger out when the spacer moves, causing removing the prosthesis, and when the first plunger moves in the opposite direction the head is extracted from the compartment. The attachment piece and bar for attaching the prosthesis respectively comprise a projection and a step to make it easier to remove the prosthesis.

A fixture (10) to be embedded in a bone (H), comprising: a fixture body (11) through which a central hole (13) penetrates over the entire length thereof; and a cap body (21) which closes an opening on a root end side of the central hole (13). The cap body (21) has a first shaft section (24) to be fitted into the central hole (13). The central hole (13) has a first tapered hole section (14) which decreases in diameter from the root end side toward a top end side, and the cap body (21) has a first tapered shaft section (25) to be fitted into the first tapered hole section (14).

A fixture (10) to be embedded in a bone (H), comprising: a fixture body (11) through which a central hole (13) penetrates over the entire length thereof; and a cap body (21) which closes an opening on a root end side of the central hole (13). The cap body (21) has a first shaft section (24) to be fitted into the central hole (13). The central hole (13) has a first tapered hole section (14) which decreases in diameter from the root end side toward a top end side, and the cap body (21) has a first tapered shaft section (25) to be fitted into the first tapered hole section (14).

Disclosed is an apparatus for implant-bar-supported restoration that includes a superstructure and a plurality of dental bars. At least two of the plurality of dental bars have different shapes or different sizes, and the superstructure is coupled with the plurality of dental bars. Also disclosed is a dental bar including a plurality of separate pieces, wherein: each of the plurality of pieces is shaped and configured to be coupled with a dental implant; each of the plurality of pieces is shaped and configured to be coupled with a superstructure; and each of the plurality of pieces has a different shape or different size.

Disclosed is an apparatus for implant-bar-supported restoration that includes a superstructure and a plurality of dental bars. At least two of the plurality of dental bars have different shapes or different sizes, and the superstructure is coupled with the plurality of dental bars. Also disclosed is a dental bar including a plurality of separate pieces, wherein: each of the plurality of pieces is shaped and configured to be coupled with a dental implant; each of the plurality of pieces is shaped and configured to be coupled with a superstructure; and each of the plurality of pieces has a different shape or different size.

The present disclosure is directed to denture devices and related technology. A device may include an overdenture including a substructure comprising at least one hinge. The device may further include a dental implant prosthesis configured to be attached to a jawbone and including at least one extensions configured for contacting the at least one hinge of the overdenture to secure the overdenture to the dental implant prosthesis.

A tool and set thereof providing for relatively easy removal of dentures is described. At least one embodiment comprises a set of tools: one for removal of an upper denture; and a second for removal of a lower denture. Each are characterized by a cylindrical shaft that has a flat or facet formed near its distal end that tapers towards the distal end thinning the shaft. The tip is bent to about a 90 degree angle. The thin tip can be easily maneuvered over a lip of a denture and as necessary in-between the denture lip and the underlying gum. The user holding onto the handle on the proximal end of the tool can push, pull, leverage and rotate the tip to pop the denture loose for removal.