Abstract: 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.

Abstract: A dental instrument comprising a shaft and a working part adjoined thereto, with the working part having a coating in which abrasive bodies are embedded, is proposed, Firstly, the average proportion of the surface of the abrasive bodies which is covered by the coating can be at least 60%, preferably at least 65%, most preferably at least 70%. Secondly, the coating can, moreover, also consist of a nickel ahoy which additionally contains at least one element selected from the group consisting of titanium, vanadium, niobium, chromium, molybdenum, tungsten, manganese, iron and cobalt. In addition, a process for coating a working part, in particular for producing a dental instrument of this type, and also the use of such a dental instrument for cutting machining of solid bodies are proposed.

Abstract: A device for withdrawal of a fluid from a storage container has a body (11) which is configured so that it can be connected to an opening of the storage container, a rimmed cover (12) mounted on the upper end of the body (11), a connector (13) arranged laterally adjacent to the rim of the cover (12) for connecting the device to a syringe, and a suction line (16) which at its lower end leads vertically into the storage container and at its upper end opens into the connector (13).

Abstract: 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.

Abstract: A dental instrument comprising a shaft and a working part adjoined thereto, with the working part having a coating in which abrasive bodies are embedded, is proposed. Firstly, the average proportion of the surface of the abrasive bodies which is covered by the coating can be at least 60%, preferably at least 65%, most preferably at least 70%. Secondly, the coating can, moreover, also consist of a nickel alloy which additionally contains at least one element selected from the group consisting of titanium, vanadium, niobium, chromium, molybdenum, tungsten, manganese, iron and cobalt. In addition, a process for coating a working part, in particular for producing a dental instrument of this type, and also the use of such a dental instrument for cutting machining of solid bodies are proposed.

Abstract: A system for filling a root canal of a tooth and for covering pulp, with a silicone material comprising MxOy, where MxOy is selected from the group comprising CaO, BaO, MgO, Na2O, K2O, and SrO, especially preferably CaO; and/or at least one compound containing MxOy, where MxOy is selected from the group comprising CaO, BaO, MgO, Na2O, K2O, and SrO, especially preferably a compound containing CaO, in particular a compound containing CaO/SiO2. Such compositions exhibit bioactive properties and improve the ease of use and the prognosis for success of the system, according to the present invention, for filling a root canal and for covering pulp.

Abstract: A pipe joint with a sleeve element, which has an internal thread, and with a spigot element, which has an external thread which can be screwed to said internal thread. One element has a constant pitch throughout and the other element, with two sections extending in each case from the ends of the threaded length is likewise provided with a constant pitch. The other element has more than two sections with a pitch which is constant within the section but is different from the first-mentioned element, it being the case that the pitch difference at least of one section is in the opposite direction, in terms of sign, to the rest of the sections. The pitch difference of one section is at least double that of the adjacent sections and in the screwed-together position, in the section with the large pitch difference, the thread play and the thread tolerances are compensated and the load flank of one corner tooth of this section, with the guide flank of the other corner tooth, produces the basic bracing.

Abstract: A portable power training device for developing and strengthening body muscles by manually overcoming spring forces comprises a base body and at least one rope-like spring element. The base body is realized in the form of a long integral profile and contains at least one groove section for inserting the spring element which extends parallel to its longitudinal extent. One eyelet, through which the rope element is guided, is respectively arranged within the region of the free ends of the base body in the groove sections, wherein the rope element respectively has a thickening, the diameter of which is greater than the diameter of the eyelet, on its free ends. This power training device is characterized by a simple design and makes it possible to perform a series of training exercises that stress different muscle sections.