A method for producing a guide rail having the steps of: (A) generating or providing a virtual 3D model of a dental prosthesis with at least one virtual model of a machined prosthetic tooth to be arranged in a prosthesis base; (B) calculating a volume to be removed from a prefabricated prosthetic tooth; (C) generating a virtual model of a guide rail which is fixed to a mount for fastening the prefabricated prosthetic tooth such that the guide rail enables guidance of a milling head and/or a cutting tool of known dimensions, in such a manner that the volume to be removed from the prefabricated prosthetic tooth is traversed with the milling head; and (D) producing a physical guide rail on the basis of the virtual model of the guide rail using a CAM method. Also disclosed are an apparatus for implementing the method, a method for basally shortening prosthetic teeth, and a method for producing a dental prosthesis with such a method for producing a guide rail. The invention further relates to a guide rail produced with such a method and to a dental prosthesis produced with such a method for producing a dental prosthesis.

A continuous fiber-reinforced build material for additive manufacturing (AM) of fiber-reinforced composite (FRC) structures, a machine for the preparation of the build material, and use of the build material for manufacturing of three-dimensional (3D) FRC end-product devices, such as medical devices for management of musculoskeletal and dental disorders.

The present invention relates to a missing tooth supplementing dental prosthesis that may provide the best wearing comfort regardless of the condition of a user's gums as the height of an end of a missing tooth supplementing member is adjusted according to the condition of the user's gums. The present disclosure proposes a missing tooth supplementing dental prosthesis including: a prosthetic body configured to be detachably worn in the oral cavity of a user who has at least one missing tooth, and provided with a fastening portion that is formed in a portion corresponding to a missing tooth; and a missing tooth supplementing member configured to be height-adjustably coupled to the fastening portion of the prosthetic body, to be height-adjusted according to the condition of the user's gums, and to supplement the missing tooth as an embodiment.

A resin-retained denture bridge having an improved bonding between a false tooth or teeth of the bridge and a retainer wire of the bridge is provided in the present invention, wherein a coupling recess is formed on a lingual side of the false tooth and a protrusion or an omega-shaped bend is formed on the retainer wire. The protrusion or omega-shaped bend is received in the coupling recess of the false tooth after or prior to a resin being filled in the coupling recess, which is then cured to form a secure engagement, so that the false tooth is bonded to the retainer with the end portions of the retainer wire extending laterally from the false tooth.

A resin-retained denture bridge having an improved bonding between a false tooth or teeth of the bridge and a retainer wire of the bridge is provided in the present invention, wherein a coupling recess is formed on a lingual side of the false tooth and a protrusion or an omega-shaped bend is formed on the retainer wire. The protrusion or omega-shaped bend is received in the coupling recess of the false tooth after or prior to a resin being filled in the coupling recess, which is then cured to form a secure engagement, so that the false tooth is bonded to the retainer with the end portions of the retainer wire extending laterally from the false tooth.

A method for producing a guide rail having the steps of: (A) generating or providing a virtual 3D model of a dental prosthesis with at least one virtual model of a machined prosthetic tooth to be arranged in a prosthesis base; (B) calculating a volume to be removed from a prefabricated prosthetic tooth; (C) generating a virtual model of a guide rail which is fixed to a mount for fastening the prefabricated prosthetic tooth such that the guide rail enables guidance of a milling head and/or a cutting tool of known dimensions, in such a manner that the volume to be removed from the prefabricated prosthetic tooth is traversed with the milling head; and (D) producing a physical guide rail on the basis of the virtual model of the guide rail using a CAM method.

Also disclosed are an apparatus for implementing the method, a method for basally shortening prosthetic teeth, and a method for producing a dental prosthesis with such a method for producing a guide rail. The invention further relates to a guide rail produced with such a method and to a dental prosthesis produced with such a method for producing a dental prosthesis.

A method for producing a guide rail having the steps of: (A) generating or providing a virtual 3D model of a dental prosthesis with at least one virtual model of a machined prosthetic tooth to be arranged in a prosthesis base; (B) calculating a volume to be removed from a prefabricated prosthetic tooth; (C) generating a virtual model of a guide rail which is fixed to a mount for fastening the prefabricated prosthetic tooth such that the guide rail enables guidance of a milling head and/or a cutting tool of known dimensions, in such a manner that the volume to be removed from the prefabricated prosthetic tooth is traversed with the milling head; and (D) producing a physical guide rail on the basis of the virtual model of the guide rail using a CAM method.

Also disclosed are an apparatus for implementing the method, a method for basally shortening prosthetic teeth, and a method for producing a dental prosthesis with such a method for producing a guide rail. The invention further relates to a guide rail produced with such a method and to a dental prosthesis produced with such a method for producing a dental prosthesis.

A reinforcement bar combination for a direct dental bridge, the reinforcement bar combination including: first and second elongate bars, each of the first and second elongate bars contacting a single occlusal preparation formed in a single abutment tooth and each of the first and second elongate bars having an end positioned on a central pad of a third elongate bar to form a reinforcement scaffold. The first elongate bar is a first elongate torque bar that is optionally bent. The second elongate bar is a second elongate torque bar that is optionally bent. The third elongate bar is a proximal bar including a central planar pad bound by a perimeter, a coronal facing surface and an apical facing surface, a first insertion arm extending in a mesial direction from the perimeter of the pad, a second insertion arm extending in a distal direction from the perimeter of the pad; a first vertical sidewall extending in a coronal direction from the coronal oriented surface of the pad; a second vertical sidewall extending in a coronal direction from the coronal oriented surface of the pad. A method of using of the reinforcement bar combination to produce a direct dental bridge is also described.

A reinforcement bar combination for a direct dental bridge, the reinforcement bar combination including: first and second elongate bars, each of the first and second elongate bars contacting a single occlusal preparation formed in a single abutment tooth and each of the first and second elongate bars having an end positioned on a central pad of a third elongate bar to form a reinforcement scaffold. The first elongate bar is a first elongate torque bar that is optionally bent. The second elongate bar is a second elongate torque bar that is optionally bent. The third elongate bar is a proximal bar including a central planar pad bound by a perimeter, a coronal facing surface and an apical facing surface, a first insertion arm extending in a mesial direction from the perimeter of the pad, a second insertion arm extending in a distal direction from the perimeter of the pad; a first vertical sidewall extending in a coronal direction from the coronal oriented surface of the pad; a second vertical sidewall extending in a coronal direction from the coronal oriented surface of the pad. A method of using of the reinforcement bar combination to produce a direct dental bridge is also described.

A dental prothesis configured to be placed in a gap between a first adjoining tooth and a second adjoining tooth so as to replace a missing tooth. The prothesis includes two partial abutments configured to sit within the gap between the two adjoining teeth. Secured to each partial abutment is a connector which is also secured to one of the adjoining teeth. Each connector is in a substantially C-shape configuration and adapted to fit along the surface of the associated adjoining tooth. The connectors have a plurality of connecting points that are adapted to fit within one of a plurality of retention grooves ground in the adjoining teeth to affix the connectors to the adjacent teeth with little grinding of the adjacent teeth. A crown is adapted to fit over and about the two partial abutments.