122 results about "Dental restorative materials" patented technology

A blank and method for the production of dental shaped bodies in machining equipment having at least two tools located in the machining chamber of the machining equipment, including a corpus of tooth restoration material, from which the shaped body can be carved by means of at least one of at least two tools by material removal. The blank exhibits at least two gages, each of which is in the form of a recess, the geometry of which is such that the tool selected for the cutting operation can be recognized by means of at least one of the gages by reference to its outer contour, the at least two gages being disposed on the blank in such a way that they can be simultaneously engaged by the at least tools when the blank is clamped in the machining equipment for carving purposes.

The invention relates to a blank for producing dental shaped parts, comprising a blank body (1) made of tooth restoration material, from which the shaped part can be machined using a tool (11, 12, 13, 14, 15) for removing material. The aim of the invention is to enable a reliable verification or recognition of the tool fitting or of the type and state of wear of the used tool of a machine tool for the blank. To this end, the blank has at least one gauge (4, 5), whose dimensions are such that the tool present for the machining can be identified by the gauge on the basis of its outer contour. The invention also relates to a method for producing dental shaped parts with a blank body made of tooth restoration material, from which the entire shaped part can be machined in a machining device by a tool for removing material. In order to enable a reliable verification or recognition of the tool fitting or of the type and state of wear of the used tool of a machine tool for the blank, the tool selected for the machining is, before its use, verified with regard to the outer contour thereof by using at least one gauge that is placed upon the blank.

Improved methods for indirect bonding of orthodontic appliances, such as brackets, to the tooth surfaces of dental patients are provided. The methods use a transfer tray to accurately position the brackets on the tooth surfaces. Preferably, the tray is made of an ethylene vinyl acetate copolymer (EVA) / siloxane material. The brackets are coated with a protective coating to prevent them from becoming embedded in the tray. Preferably, a translucent, blue-tinted coating is used to cover the brackets. Dental restorative materials are used to bond the brackets to the teeth. The transfer tray is then removed from the mouth, while the appliances remain firmly bonded to the tooth surfaces.

The disclosure provides a new photopolymerizable resin system for dental restorative materials. The resin system utilizes a thiol-ene component as the reactive diluent in dimethacrylate systems. The ternary resin system comprises a thiol monomer, an ene monomer and a dimethacrylate monomer. Use of an off-stoichiometric ratio of thiol:ene functional groups in favor of excess thiols results in enhanced overall functional group conversion, improved polymer mechanical properties, and reduced shrinkage stress of the ternary system when compared to either traditional dimethacrylate or thiol-ene resin systems.

A blank for manufacturing molded dental components includes a blank body that includes tooth repairing material. A molded dental component is manufactured by removing portions of the tooth repairing material using a tool. The blank is encoded with at least one structure as a carrier of information regarding properties of the blank body. The at least one structure is arranged such that at least one of a position, dimensions, or a type of structure can be determined by sensing or measuring the blank. In this context, the position, the dimensions, or the type of the structure are embodied such that a value acquired during a determination of the above corresponds to information about a property of the blank body.

The invention relates to a blank for the production of a dental shaped body, wherein the blank has a corpus (2) of tooth restoration material, from which the shaped part to be fabricated is carved by means of a tool (4) by removal of material. The blank has coding means (1) formed on part of the surface (6) of the blank corpus (2), which coding means (1) has at least one structure (8, 9) for identification of the blank. The coding means (1) consists of a plurality of panels (5.1) at the level of the surface (6) of the corpus (2) and a plurality of panels (5.2, 5.3) incorporating a flat structure (8, 9) at a level (h1, h2) which is distinguishable from at least the level of the surface (6) of the corpus (2).The invention further relates to a method for identifying a blank with the aid of coding means (1).