A core for obturating a root canal includes a body that has a pre-formed contour that closely matches a contour of the root canal. When the core is inserted in the root canal with or without sealer, there are essentially no voids in the root canal. A method of making a customized root canal obturation core includes generating a three-dimensional image of a root canal. The method also includes manufacturing the customized root canal obturation core based on the three-dimensional image of the root canal. The customized root canal obturation core has a preformed contour that closely matches a contour of the root canal such that when the core is inserted in the root canal with or without sealer there are essentially no voids in the root canal.

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.

The invention relates to a three-dimensional orthodontic retainer (2) and to a method for producing such a retainer (2) in which the three-dimensional orthodontic retainer (2) is matched to the exact shape of the adjacent teeth (3) and is produced from a blank (1) in such a manner that the physical properties of the material of the remaining part of the blank (1) are unchanged in the retainer (2). The method for producing the three-dimensional orthodontic retainer (2) comprises the following method steps: creating three-dimensional model of the structure of the patient's teeth (3); designing a customised, precisely fitting model of the retainer (2); producing the retainer (2) on the basis of the designed 3D model by computer-controlled deposition or application of material.

A dental implant system having a first implant part, provided for introduction into a jawbone, and having a second implant part, provided for attaching a tooth replacement part, the implant parts being mechanically interconnectable via a connection pin which is integrally formed on one of the implant parts and which is insertable into a receiving duct provided in the other implant part, is to have a particularly high stability and long duration of use, even when ceramic materials are used for the implant parts. For this purpose, in a contact region to the receiving duct the connection pin is provided with a spacer formed of a material softer than the material of the connection pin, and the connection pin has a porous surface, in the surface region which is provided with the coating, to form a material fit connection to the coating.

Provided herein is a method for forming a periodic microstructure on a surface of zirconia-based ceramics, which are not easily mechanically workable, without causing thermal adverse effects. A zirconia-based ceramic having a surface periodic microstructure is also provided. A linearly or circularly polarized laser beam is irradiated to a zirconia-based ceramic surface, and periodic irregularities are formed in a spot of the laser beam. Stripe-pattern irregularities parallel to the direction of polarization can be formed in a spot of a laser beam by irradiating a linearly polarized ultrashort pulsed-laser beam to a zirconia-based ceramic surface. A mesh-like raised region and a dot-like recessed region can be periodically formed by irradiating a circularly polarized ultrashort pulsed-laser beam to a ceramic surface.

The invention relates to a 3d-printed dental restoration precursor, a 3d-printed array comprising a 3d-printed dental restoration precursor, a kit of parts comprising at least two 3d-printed dental restoration precursors or 3d-printed dental restorations and a process of producing such a 3d-printed array, 3d-printed dental restoration precursor or 3d-printed dental restorations. The 3d-printed dental restoration precursor comprises at least one crown unit having an outer surface and an inner surface and at least one support element having a fixation section. The support element is connected through the fixation section to the outer surface of the crown unit in a particular region.

The invention provides a dental prosthesis, comprising: an implant frame configured to be fixed into the mouth of a patient to support replacement of two or more teeth of the patient, the implant frame having an exterior surface, the exterior surface defining a first engagement profile; and an overlay adapted to be secured to the implant frame and to provide, or afford mounting of, the two or more teeth, the overlay having an internal cavity that extends along a substantial length of the overlay, the internal cavity defining a second engagement profile, wherein the second engagement profile is complementary to the first engagement profile, thereby allowing fitment of a substantial portion of the exterior surface of the implant frame within the internal cavity.

A method and a system for manufacturing an orthodontic appliance are provided. The method comprises: receiving a 3D mesh including a plurality of inner vertices representative of an inner surface of the appliance; generating a reference plane positioned relative to the arch form 3D mesh according to a predetermined position; determining, based on the 3D mesh, for each one of the plurality of inner vertices, a respective distance to the reference plane, the respective distance being indicative of a thickness of the appliance after forming; generating, based on the respective distance, a plurality of outer vertices representative of an outer surface of the appliance; generating, based on the plurality of inner vertices and the plurality of outer vertices, an appliance 3D representation of the appliance including data indicative of the thickness of the appliance; causing the manufacturing of the appliance based on the appliance 3D representation.

A method for producing a dental prosthesis includes preparing three-dimensional data on the dental prosthesis, preparing a processing target that transmits laser light, setting processing points representing an outer shape of the dental prosthesis based on the three-dimensional data, setting a to-be-cut plane extending from a surface of the processing target to the processing points, creating the processing points in the processing target by irradiating the processing target with the laser light, and cutting a portion of the processing target that is outward of the dental prosthesis with an internal stress by irradiating the processing target with the laser light along the to-be-cut plane.

An anatomical dental implant arranged to be implanted in a naturally occurring cavity of the jawbone, the implant comprising at its apical side a root part arranged to anchor the implant in the cavity and at its occlusal side an abutment part arranged for supporting a dental prosthetic element, wherein the root part comprises an outer surface arranged to come into contact with the cavity walls, and wherein the root part comprises an outer section adjacent to the outer surface of the root part, wherein the outer section of the root part is arranged to deform plastically upon insertion of the root part into the cavity such that the root part substantially conforms to the shape and size of the cavity.