Ivoclar Vivadent AG

Schaan, Liechtenstein

Ivoclar Vivadent AG

Schaan, Liechtenstein

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Patent
Ivoclar Vivadent Ag | Date: 2016-02-19

The dental hand tool is arranged with a handle comprising at least a connector and a coupling member at one end thereof. The dental hand tool is in particular provided with a second connector and a second coupling member at the other end of the handle. A modeling tip (30) is provided that comprises a shaft and that is suitable for the coupling member. The modeling tip comprises a coating of a material that is more flexible compared to the remaining material of the modeling tip. In particular, the material has a smaller surface energy compared to the remaining material of the modeling tip.


Patent
Ivoclar Vivadent Ag | Date: 2017-01-11

Lithium silicate glass ceramics and glasses containing specific oxides of tetravalent elements are described which crystallize at low temperatures and are suitable in particular as dental materials.


Patent
Ivoclar Vivadent Ag | Date: 2017-04-12

The invention relates to a dental restoration model comprising a positive model (15) of a dental restoration piece. Said positive model (15) defines at least the outer contour (36) of a dental restoration piece to be made using lost wax technology and is provided with a locating pin region which is defined especially according to a given optimization process. The invention is characterized in that the locating pin region is provided with a guiding element (30) which accommodates and/or guides a material feeder (22, 24, 26 and 28).


The invention relates to free radical polymerisable dental materials which contain a combination of a thiourea derivative and a bisacyldialkyl germanium compound, as initiators for free radical polymerization.


Patent
Ivoclar Vivadent Ag | Date: 2017-02-24

Lithium silicate glass ceramics and glasses are described which can advantageously be applied to zirconium oxide ceramics in particular by pressing-on in the viscous state and form a solid bond with these.


Patent
Ivoclar Vivadent Ag | Date: 2017-02-08

The invention relates to a device, to a method, and to a computer program for drilling curved holes. The device for the machining of material comprises a rotationally drivable material-machining segment, a connection segment used to connect to a rotational drive, and a drive train extending between the connection segment and the material-machining segment, by means of which drive train a driving torque can be transmitted from the connection segment to the material-machining segment, wherein the drive train is arranged in a rigid shaft segment that extends in a curved manner between the connection segment and the material-machining segment.


Patent
Ivoclar Vivadent Ag | Date: 2017-05-17

Disclosed is a radically polymerizable dental material containing at least one compound of formula (I). Preferably, the material additionally contains a radically polymerizable monomer, a free-radical-polymerization initiator, and filler. The disclosed dental material is characterized by low polymerization contraction stress.


Patent
Ivoclar Vivadent Ag | Date: 2017-05-03

The invention relates to a film clamping element, in particular for carrying out dental machining in the mouth area of a patient, comprising a vestibular ring (14) and a lip ring (12), between which and optionally beyond which a film (16) extends. The film is held in a stretched manner by the rings, and the film (16) and the rings are elastically deformable, in particular the film and the rings can be pressed together into a substantially oval shape. The invention is characterized in that the vestibular ring (14) has a recess on at least one circumferential point, the width of said recess being greater than the width of a frenulum and smaller than the radius of the vestibular ring (14).


Patent
Ivoclar Vivadent Ag | Date: 2017-05-17

Disclosed is a radically polymerizable dental material containing at least one compound of formula (I) and at least one thermolabile radically polymerizable compound and/or at least one photolabile radically polymerizable compound. The disclosed materials are characterized by debonding-on-demand properties.


Patent
Ivoclar Vivadent Ag | Date: 2017-04-12

The invention concerns glass ceramics with SiO2 as the main crystalline phase and precursors thereof, characterised by having very good mechanical and optical properties, and being usable, in particular, as restorative materials in dentistry.

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