Prosthetic element for bone extremities such as fingers or toes, or teeth, comprising a trabecular part (20, 40, 120) and two end parts or stumps (12, 34, 112; 15, 39, 115).

An external drive apparatus for bendable collar implants includes a male fastener and a female driver. The male fastener is constructed as a rigid and integral unity including an implant screw, a collar, and a male screw-top drive. The female driver supports a female screw-top drive. The female driver is configured for application of an implantation torque to the implant screw via the male screw-top drive which is disposed distally away from the collar.

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, ?-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.

Provided is an implant fixture.

The fixture includes a first area portion including a plurality of first screw portions configured to correspond to a cortical bone during implantation in a bone tissue and have a first ridge portion and a first bottom portion which are formed to have a spiral shape and alternately disposed in a direction of a central axis, and a plurality of non-screw portions provided between adjacent first screw portions and including a continuous surface having a smaller radius at a terminal end of a first screw portion of one side than a radius of the first bottom portion with respect to the central axis, wherein the radius gradually increases toward a beginning end of a first screw portion of another side, and a second area portion positioned below the first area portion and configured to correspond to a cancellous bone of the bone tissue during the implantation in the bone tissue.

The present invention relates to a system which comprises a dental implant (10) and a replacement ring (28). The dental implant (10) has an insertion portion for anchoring in a jaw bone. The replacement ring (28) serves for replacing a subtractively removable annular material region in a coronal region of the insertion portion, the shape of the replacement ring (28) being inscribable into the shape of the dental implant (10) in the coronal region at least to some extent such that an inner lateral surface (32) of the replacement ring (28) lies within the shape of the dental implant (10).

A dental superstructure and a method of forming a curved channel therein for a fixing element by using a computer-controlled device. A dental superstructure is fixed, preferably through an intermediate piece (interface), to a dental implant integrated in the jaw bone by means of a fixing element (typically a screw) through an outlet provided with a shoulder. To allow the insertion of the fixing element, a channel is formed in the superstructure between an inlet formed in the superstructure at its side facing the oral cavity and the shoulder of the outlet. The outlet having a diameter corresponding to a threaded part of the fixing element is usually formed in a separate working process.

The present invention is a dental implant with an integrated scan body located between the apical and coronal portions of the implant. The scan body has a geometry permitting unequivocal determination of its position relatively to the position of the neighboring teeth, from different scanning directions.

An implant, particularly a dental implant is provided, having an anchoring region (12) for anchoring in a bone, which preferably includes a thread (14) for screwing in the bone, and a fastening region (22) for attaching a supra-construction, wherein an abutment region (16) adjoins the anchoring region (12), the abutment region (16) having a guide structure with a plurality of outwardly projecting ridges (18) provided thereon, and preferably, grooves (20) being formed between the ridges (20). The guide structure of the anchoring region (12) allows a better osseointegration and counteracts periimplant bone loss.

A dental implant device configured as a single, solid, unitary structure, including a body portion, multiplicity of wedging edge portion, and an apical end portion, wherein the implant device is configured to be installed in a patient's mandibular or maxillary bone. The apical end portion is configured to be beveled on a multiplicity of sides. The apical end portion may also include a joining surface, the joining surface has a saw-like serration pattern, a generally jagged pattern, or a smooth pointed edge to aid in locking the implant device to the maxilla or mandible to achieve initial stability and mechanical retention. The apical end portion may further include a multiplicity of generally circular holes to generally aid bone growth and facilitate stronger osseointegration. The dental implant comprises a biocompatible material including zirconia or titanium alloy. A minimum of 5 mm of the apical end portion would be inserted into the bone.

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