A dental restoration, a method for the production of a dental restoration and a kit. The dental restoration comprises an outer component, in particular a shell, and an inner component, in particular a core. The inner component and the outer component contain composite material. The outer component is mountable or mounted on the inner component. The inner component is designed for attachment onto a tooth preparation, in particular a tooth stump.

The bite registration block is used for recording the relation between a patient's maxillary and mandibular arches for proper fabrication of a fixed dental prosthesis, or prostheses, such as fixed crowns or the like. The bite registration block is particularly adapted for use when a patient's prepared teeth are opposed by an edentulous arch (i.e., opposed by an area of missing teeth). The bite registration block is formed from a resilient material, such as a suitable type of plastic or the like, and is formed as a block having opposed upper and lower surfaces, a pair of laterally opposed side surfaces, and a pair of longitudinally opposed side surfaces. The upper surface defines a concave, longitudinally extending recess for positioning about an edentulous region of the patient's jaw.

The invention relates to kit of parts comprising a solution, a porous zirconia article, optionally application equipment, the solution comprising cation(s) of non-coloring agent(s) selected from ions of Y, Gd, La, Yb, Tm, Mg, Ca and mixtures thereof, solvent(s) for the ion(s), optionally complexing agent(s), optionally thickening agent(s), optionally organic marker substance(s), optionally additive(s), the porous zirconia article showing a N2 adsorption and/or desorption of isotherm type IV according to IUPAC classification. The invention also relates to a method for enhancing the translucency of a zirconia article comprising the steps of providing a porous zirconia article and a solution, applying the solution to at least a part of the outer surface of the porous zirconia article, optionally drying the porous zirconia article of the preceding step, sintering the porous zirconia article to obtain a zirconia ceramic article.

A layered denture having at least one of an integrated layer, balanced occlusion, and a root approximating structure is disclosed. The resulting denture may be suitable for use without an underlying reinforcement bar and may provide enhanced aesthetics by approximating natural dentition and roots both above and below the gum line.

A polymerizable composition, which includes (a) at least one radically polymerizable oligomer, (b) at least one radically polymerizable monomer and (c) at least one initiator for the radical polymerization, characterized in that the radically polymerizable oligomer (a) is selected from the group consisting of aliphatic urethane (meth)acrylate oligomers, epoxy (meth)acrylate oligomers and polyether urethane (meth)acrylate oligomers, and the radically polymerizable monomer (b) is polyfunctional.

A scaffold for regenerating a pulp of a root canal includes a body that has a pre-formed contour that closely matches a contour of the root canal. A method of making a customized regenerative scaffold includes generating a three-dimensional image of a root canal. The method also includes manufacturing the customized regenerative scaffold based on the three-dimensional image of the root canal.

Disclosed is a template for forming a veneer on a tooth using a composite resin material that is curable by radiation. The template includes a tooth-contacting portion having a smooth concave surface for contacting the composite, the smooth concave surface having a shape that is complementary to a desired natural tooth shape. The tooth-contacting portion is formed of a material capable of transmitting the radiation such that the composite is curable through the tooth-contacting portion to form a veneer having a surface shape that conforms to the desired natural tooth shape. Also disclosed is a kit including a plurality of such templates and a method of using the templates to form a veneer.

Prosthetic knee implant or implant component is made with a magnesium oxide stabilized transformationally toughened zirconia.

A composition, containing a carrier medium and particles based on a metal compound with a weight-average particle diameter of 1 nm to 10 m is useful to clean metal or ceramic surfaces which are part of a dental restoration or of an implant abutment.

A composition, containing a carrier medium and particles based on a metal compound with a weight-average particle diameter of 1 nm to 10 m is useful to clean metal or ceramic surfaces which are part of a dental restoration or of an implant abutment.