According to an aspect of the present invention, a dental alginate impression material includes an alginate, calcium sulfate, and an aminocarboxylic acid compound.

According to an aspect of the present invention, a dental alginate impression material includes an alginate, calcium sulfate, and an aminocarboxylic acid compound.

The present invention relates to a kit of parts comprising Paste (A), Paste (B) and Paste (C), the pastes being characterized as follows: Paste (A) comprising at least one polyorganosiloxane with at least two olefinically unsaturated groups, and at least one organohydrogenpolysiloxane, at least one alkylsiloxane having at least one carbinol, silanol, alkoxy, carboxyl or amino group, optionally filler(s) and optionally additive(s); Paste (B) comprising at least one polyorganosiloxane optionally with olefinically unsaturated groups, at least one addition cure catalyst, optionally at least one alkylsiloxane having at least one carbinol, silanol, alkoxy, carboxyl or amino group, optionally filler(s) and optionally additive(s) Paste (C) comprising a softener, a condensation cure catalyst, optionally filler(s), and optionally additive(s) optionally at least one polyorganosiloxane optionally with olefinically unsaturated groups. The invention is also directed to a system for storing and delivering Paste (A), Paste (B) and Paste (C), the system comprising three compartments for storing the respective pastes, means for delivering the respective pastes to an outlet orifice and an interface for receiving a mixing tip. The kit of parts or the system is in particular useful for conducting a dental retraction and dental impression process.

The present invention relates to a kit of parts comprising Paste (A), Paste (B) and Paste (C), the pastes being characterized as follows: Paste (A) comprising at least one polyorganosiloxane with at least two olefinically unsaturated groups, and at least one organohydrogenpolysiloxane, at least one alkylsiloxane having at least one carbinol, silanol, alkoxy, carboxyl or amino group, optionally filler(s) and optionally additive(s); Paste (B) comprising at least one polyorganosiloxane optionally with olefinically unsaturated groups, at least one addition cure catalyst, optionally at least one alkylsiloxane having at least one carbinol, silanol, alkoxy, carboxyl or amino group, optionally filler(s) and optionally additive(s) Paste (C) comprising a softener, a condensation cure catalyst, optionally filler(s), and optionally additive(s) optionally at least one polyorganosiloxane optionally with olefinically unsaturated groups. The invention is also directed to a system for storing and delivering Paste (A), Paste (B) and Paste (C), the system comprising three compartments for storing the respective pastes, means for delivering the respective pastes to an outlet orifice and an interface for receiving a mixing tip. The kit of parts or the system is in particular useful for conducting a dental retraction and dental impression process.

The present invention relates to a kit of parts comprising Paste (A), Paste (B) and Paste (C), the pastes being characterized as follows: Paste (A) comprising at least one polyorganosiloxane with at least two olefinically unsaturated groups, and at least one organohydrogenpolysiloxane, at least one alkylsiloxane having at least one carbinol, silanol, alkoxy, carboxyl or amino group, optionally filler(s) and optionally additive(s); Paste (B) comprising at least one polyorganosiloxane optionally with olefinically unsaturated groups, at least one addition cure catalyst, optionally at least one alkylsiloxane having at least one carbinol, silanol, alkoxy, carboxyl or amino group, optionally filler(s) and optionally additive(s) Paste (C) comprising a softener, a condensation cure catalyst, optionally filler(s), and optionally additive(s) optionally at least one polyorganosiloxane optionally with olefinically unsaturated groups. The invention is also directed to a system for storing and delivering Paste (A), Paste (B) and Paste (C), the system comprising three compartments for storing the respective pastes, means for delivering the respective pastes to an outlet orifice and an interface for receiving a mixing tip. The kit of parts or the system is in particular useful for conducting a dental retraction and dental impression process.

A dental bite block device includes a front wall, a flat lateral sidewall, and a concave lateral sidewall that define a longitudinal channel that extends through the device. The lateral sidewalls are connected by a crossbar, and the channel can be filled with polyvinyl siloxane (PVS) dental impression putty. When the device is positioned in the patient's mouth, the flat lateral sidewall faces the right inner check of the patient, the patient's tongue rests against the concave lateral sidewall, and the patient's upper and lower teeth rest open on the front wall. Once the PVS putty sets, it forms a solid half cylinder-shaped member that includes impressions of a plurality of the patient's upper and lower teeth, which assist to maintain the device in place. The front wall and concave sidewall further include an opening that defines a clip for a saliva ejector.

Simultaneously retracting gingiva and taking an impression around a tooth with two different materials having different setting properties with different viscosities or rigidity. A supportive material having a higher viscosity or rigidity relevant to an impression material is used in combination with a rigid tray to retract gingiva and form an impression of and around a tooth. The timing of the application of pressure to the tray when placed over a tooth containing the two different materials is such that pressure is only applied when the supportive material has a state of cure or setting state with a viscosity or rigidity greater than the state of cure or setting state of the impression material.

The invention relates to a curable composition comprising a resin matrix, the resin matrix comprising cationically curable components (A) and radiation curable components (B), a curing system, the curing system comprising a starter (A-S) suitable for curing the cationically curable components (A) and a photo-initiator (B-I), the curable composition being provided as a Base Part and Catalyst Part being separated before use, wherein the Base Part comprises components (A) and (B) and wherein the Catalyst Part comprises components (A-S) and (B-I). The composition can be used for taking a dental impression including the subgingival parts.

The invention relates to a curable composition comprising a resin matrix, the resin matrix comprising cationically curable components (A) and radiation curable components (B), a curing system, the curing system comprising a starter (A-S) suitable for curing the cationically curable components (A) and a photo-initiator (B-I), the curable composition being provided as a Base Part and Catalyst Part being separated before use, wherein the Base Part comprises components (A) and (B) and wherein the Catalyst Part comprises components (A-S) and (B-I). The composition can be used for taking a dental impression including the subgingival parts.

The invention relates to a radiation curable composition for additive-manufacturing processes, the composition comprising (meth)acrylate component(s) not comprising an urethane moiety having a molecular weight Mw of at least 1,000 as Component A1, photo initiator as Component B, red, yellow or orange dye or combination thereof as Component C, blue dye having a light absorption band in the range of 350 to 420 nm as Component D, and optionally stabilizer as Component E. The invention further relates to a process of producing an elastomeric 3-dim article from the radiation curable composition in an additive-manufacturing process and the obtained elastomeric 3-dim article.