Abstract: The present invention refers to a method of infiltrating enamel for the prevention and/or treatment of carious lesions comprising (a) exposing an enamel area to a conditioner comprising hydrochloric acid; (b) exposing the conditioned enamel area to an infiltrant; and (c) curing the infiltrant. The present invention further refers to a kit for carrying out the method of infiltrating enamel, which comprises a conditioner comprising hydrochloric acid and an infiltrant comprising at least one low viscous dental resin. Alternatively, the kit comprises ready-to-use means for carrying out the method of infiltrating enamel, e.g. application strips with delivery pads soaked with conditioner or infiltrant. The present invention also refers to a method for identifying an infiltrant by calculation of the penetration coefficient, and to an infiltrant identified by the method having a penetration coefficient of >50 cm/s or comprising a low viscous light curing resin having a penetration coefficient of >50 cm/s.

Abstract: The invention relates to a composition which comprises 1 to 80% by weight of at least one acid which has a pKa of 2 or less; a protic solvent; a complexing agent for Ca2+ ions; for use as conditioning agent for etching enamel lesions.

Abstract: The invention relates to a composition which comprises a) 4 to 80% by weight of at least one acid which has a pKa of 2 or less; b) a protic solvent; the acid having a saturation vapor pressure at 20° C. of 120 mbar or less, for use as conditioning agent for etching enamel lesions.

Abstract: A transfer dish for dental materials has a bottom surface, a top surface and a front surface. The top surface is designed with troughs for receiving pre-dosed amounts of dental material for application which have, in the front area, a plane ramp sloping toward a rear area, and, in the rear area, the troughs have a concave wall adjacent to a transition area. The transition area is designed as an osculating curve of the concave wall with respect to the plane ramp, and the trough, in a top view, has the contour of a U which is open toward a front area of the transfer dish. The ramp tapers in width toward the front area of the transfer dish.

Abstract: A subject-matter of the invention is an impression material with at least one compound with at least two alkenyl groups as component (a), at least one compound with at least one chelating group as component (b), at least one organohydropolysiloxane as component (c), at least one hydrosilylation catalyst as component (d) and at least one compound with a chelatable metal atom as component (e), the chelating group of the component (b) exhibiting no reactive groups which can react with the component (c) and/or the component (d). The invention achieves a long storage stability.

Abstract: A device for mixing and dispensing multi-component compositions employs a cap. The cap acts as a closure initially to close the outlet openings of the components and can be moved into the open position by pressure of the components while they are being discharged, so that the components can be mixed by the mixing helix and emerge from the outlet tube. The device also includes a distribution structure that may be a fitted onto or an integral part of the outlet tube.

Abstract: The device for mixing and dispensing multi-component compositions is distinguished in that a cap (10) acting as a closure initially closes the outlet openings (5) of the components and can be moved into the open position by pressure of the components while they are being discharged, so that the components can be mixed by the mixing helix (13) and emerge from the outlet tube (12).

Abstract: The invention relates to a dental impression tray comprising a base and at least two walls defining said base. At least one of these walls is at least partially formed by hollow bodies made of flexible material. Said hollow bodies can be filled in order to form, when taut, the desired shape for using the mould tray. In order to provide sufficient longitudinal stability for the impression tray, at least one of the walls is fitted with a rigid longitudinal rib. Said wall can also be rigid in its entirety. The hollow bodies which are to be filled can be fitted with openings. The moulding material filling the hollow bodies can flow from said openings into the moulding region of the dental impression tray. The base is flexible.

Abstract: The device for generating a multi-component compound, in particular for dental purposes, by pressing out and mixing its components from cartridges (5), which open into a mixer (10), is characterized in that the advance speed of the motor (15) is regulated by the pressing-out behaviour of the components, which pressing-out behaviour can be determined by sensors (III-VIII).

Abstract: The invention relates to dental materials which contain hydrolysis-resistant phosphonic acids with ethylenically unsaturated double bonds and which are especially suitable for use as adhesion promoters.

Abstract: The multi-component mixing capsule with dispensing device has a container part in which a component can be accommodated. A further component is arranged in a piston which is sealed at one end by a foil disk and a holed disk. At the other end, the piston is sealed by a ram which, in a first operating step, forces the liquid component from the piston into the mixing space of the container part and, in a second operating step, also forces the piston downward so that the mixed compound can emerge from the dispensing device.

Abstract: The device for mixing and dispensing multi-component compositions is distinguished in that a cap (10) acting as a closure initially closes the outlet openings (5) of the components and can be moved into the open position by pressure of the components while they are being discharged, so that the components can be mixed by the mixing helix (13) and emerge from the outlet tube (12).

Abstract: The multi-component mixing capsule with dispensing device (2) has a container part (1) in which a component can be accommodated. A further component is arranged in a piston (4) which is sealed at one end (5) by a foil disk (6) and a holed disk (7). At the other end, the piston (4) is sealed by a ram (8) which, in a first operating step, forces the liquid component from the piston (4) into the mixing space of the container part (1) and, in a second operating step, also forces the piston (4) downward so that the mixed compound can emerge from the dispensing device (2).

Abstract: The device for generating a multi-component compound, in particular for dental purposes, by pressing out and mixing its components from cartridges (5), which open into a mixer (10), is characterized in that the advance speed of the motor (15) is regulated by the pressing-out behaviour of the components, which pressing-out behaviour can be determined by sensors (III-VIII).