Abstract: The invention relates to an initiator system for curing a dental composition, the initiator system comprising a hydroperoxide component, a transition metal component, a polymerizable thiourea component, the polymerizable thiourea component comprising a thiourea moiety which is attached to a (meth)acrylate moiety through a C3-11 alkyl chain. The invention also relates to a dental composition comprising such an initiator system, and curable components, in particular curable components comprising acidic moieties.

Abstract: The invention relates to a dental composition comprising polymerizable components, an initiator suitable for curing the polymerizable components, a Ca-ions releasing component having a Ca-ions releasing capability of 400 to 700 mg/l (ppm) if 2.5 g Ca-ions releasing component is steered in 50 ml de-ionized water having a pH of 2 for 24 hours; a F-ions releasing component having a F-ions releasing capability of 1,500 to 3,500 mg/l (ppm) if 2.5 g F-ions releasing component is steered in 50 ml de-ionized water having a pH of 7 for 24 hours. The invention also relates to a kit of parts comprising such a dental composition according and the following items alone or in combination: dental adhesive, dental milling block, prefabricated dental crown. The dental composition is suitable for use in a process of remineralizing a defect tooth in the mouth of a mammal, the process comprising the step of fixing a dental restoration to the surface of the defect tooth with the dental composition.

Abstract: The invention relates to an initiator system for curing a dental composition, the initiator system comprising a hydroperoxide component, a transition metal component, a polymerizable thiourea component, the polymerizable thiourea component comprising a thiourea moiety which is attached to a (meth)acrylate moiety through a C3-11 alkyl chain. The invention also relates to a dental composition comprising such an initiator system, and curable components, in particular curable components comprising acidic moieties.

Abstract: The invention relates to a kit of parts for preparing a glass ionomer composition for dental use, the kit comprising a Paste A and a Paste B, Paste A comprising water, acid-reactive inorganic filler A, phyllo silicate(s), Paste B comprising water, poly-acid, non acid-reactive filler B, optionally chelating agent. The invention also relates to a hardenable composition obtainable by combining the pastes of the kit or parts and to the use of such a composition as or for preparing a dental cement, dental filling material, dental core build up material or dental root channel filling material.

Abstract: The invention features a composition which can or is to be used in a dental retraction, the composition comprising liquid a liquid and a layer type 1:1 silicate mineral and a layer type 2:1 silicate mineral in a ratio from about 50/50 to 5/95 wt.-% with respect to each other. The invention also relates to a container containing the dental retraction composition and to a kit comprising parts A and B, wherein part A comprises the dental retraction composition and part B comprises at least one accessory selected from the group of applier, dental impression material, retraction cap(s), a container for storing and dispensing the composition and combinations thereof. The invention further features a process of dispensing a dental retraction composition, the process comprising the steps: providing a dental retraction composition contained in a container, placing the container in an applier, and using the applier for dispensing the dental retraction composition out of the container.

Abstract: The present invention relates to a hardenable dental composition comprising (A) a curable component comprising curable moieties (AC), (B) a crosslinker component as component (B) capable of crosslinking said component (A), (C) a catalyst as component (C) capable of catalyzing a crosslinking reaction of component (A) and component (B), (D) polymeric particles as filler component (D), the polymeric particles having a maximum particle size of 150 ?m or below and being composed of organic polymers, silicone elastomers or a combination or mixture thereof and preferably (E1) an inorganic filler component having a BET surface from 50 to 400 m2/g. The invention also relates to the use of a polymeric particulate filler component (D) for producing a hardenable dental composition, the hardenable dental composition being in particular useful as dental impression or dental retraction material or for dental impression or dental retraction purposes.

Abstract: The invention relates to a kit of parts for preparing a glass ionomer composition for dental use, the kit comprising a Paste A and a Paste B, Paste A comprising water, acid-reactive inorganic filler A, phyllo silicate(s), Paste B comprising water, poly-acid, non acid-reactive filler B, optionally chelating agent. The invention also relates to a hardenable composition obtainable by combining the pastes of the kit or parts and to the use of such a composition as or for preparing a dental cement, dental filling mater ial, dental core build up material or dental root channel filling material.

Abstract: A device for dispensing a dental paste comprises a first nozzle for delivering the paste and a second nozzle for delivering a gas stream. The device is adapted for simultaneously delivering the gas stream and the paste toward a working area. The invention helps minimizing efforts in a dental treatment and maximizing the quality of that dental treatment.

Abstract: The invention features a composition which can or is to be used in a dental retraction, the composition comprising liquid a liquid and a layer type 1:1 silicate mineral and a layer type 2:1 silicate mineral in a ratio from about 50/50 to 5/95 wt.-% with respect to each other. The invention also relates to a container containing the dental retraction composition and to a kit comprising parts A and B, wherein part A comprises the dental retraction composition and part B comprises at least one accessory selected from the group of applier, dental impression material, retraction cap(s), a container for storing and dispensing the composition and combinations thereof. The invention further features a process of dispensing a dental retraction composition, the process comprising the steps: providing a dental retraction composition contained in a container, placing the container in an applier, and using the applier for dispensing the dental retraction composition out of the container.