A photocurable dental impression material comprising: (a) a mixture of polymerizable silicone compounds each having two or more polymerizable (meth)acrylate groups, said mixture having a dynamic viscosity at 25 C. of from 1 to 100 Pas; (b) a filler; (c) a photo initiator system, wherein the mixture of polymerizable silicone compounds comprises based on the total weight of the mixture of polymerizable silicone compounds (a) 10 to 90 percent by weight of high-molecular polymerizable silicone compounds having a molecular weight in the range of from more than 4000 up to 10.000; and (b) 90 to 10 percent by weight of polymerizable silicone compounds having a molecular weight in the range of from 300 to 4000.

A dental impression material includes: a base material paste that includes an alginate and water; and a curing material paste that includes a gelling reagent and a poorly water-soluble liquid compound. A viscosity of 10% aqueous solution of the alginate at 20? C. is 5 mPa.Math.s or more and 90 mPa.Math.s or less.

A dental impression material includes: a base material paste that includes an alginate and water; and a curing material paste that includes a gelling reagent and a poorly water-soluble liquid compound. A viscosity of 10% aqueous solution of the alginate at 20? C. is 5 mPa.Math.s or more and 90 mPa.Math.s or less.

The invention relates to a curable composition for dental retraction comprising a resin matrix comprising at least one polyorganosiloxane with at least two olefinically unsaturated groups as component A1, at least one organohydrogenpolysiloxane as component A2, optionally at least one vinyl functional QM silicone component as component A3, at least one alkylsiloxane having at least one carbinol, silanol, or alkoxy moiety as component B, optionally surfactant(s) as component E, optionally additive(s) as component F, a filler system comprising filler(s) as component D, a catalyst system comprising addition cure catalyst component C-A suitable to cure components A1 and A2, condensation cure catalyst component C-B suitable to cure component B, the curable composition being provided as a kit of part comprising a Catalyst Part I and a Base Part II the Catalyst Part I comprising components C-A, C-B, A1, the Base Part II comprising components A2, A1, B, wherein each of components D, E and F and A3, if present, can be present either in the Catalyst Part I or the Base Part II or the Catalyst Part I and the Base Part II, and wherein component B is present in an amount of 6 wt. % or more with respect to the whole composition.

The invention relates to a curable composition for dental retraction comprising a resin matrix comprising at least one polyorganosiloxane with at least two olefinically unsaturated groups as component A1, at least one organohydrogenpolysiloxane as component A2, optionally at least one vinyl functional QM silicone component as component A3, at least one alkylsiloxane having at least one carbinol, silanol, or alkoxy moiety as component B, optionally surfactant(s) as component E, optionally additive(s) as component F, a filler system comprising filler(s) as component D, a catalyst system comprising addition cure catalyst component C-A suitable to cure components A1 and A2, condensation cure catalyst component C-B suitable to cure component B, the curable composition being provided as a kit of part comprising a Catalyst Part I and a Base Part II the Catalyst Part I comprising components C-A, C-B, A1, the Base Part II comprising components A2, A1, B, wherein each of components D, E and F and A3, if present, can be present either in the Catalyst Part I or the Base Part II or the Catalyst Part I and the Base Part II, and wherein component B is present in an amount of 6 wt. % or more with respect to the whole composition.

A light-curable dental impression material comprising (a) a polymerizable polysiloxane resin composition comprising compounds of formula (I)

E-(L.sup.1-Z).sub.n-L.sup.2-E (I)

(b) a particulate filler; and
(c) a photoinitiator.

A light-curable dental impression material comprising (a) a polymerizable polysiloxane resin composition comprising compounds of formula (I)

E-(L.sup.1-Z).sub.n-L.sup.2-E (I)

(b) a particulate filler; and
(c) a photoinitiator.

A light-curable dental impression material comprising

(a) a polymerizable polysiloxane resin composition comprising compounds of formula (I)

E(L.sup.1Z).sub.nL.sup.2E (I)

(b) a particulate filler; and
(c) a photoinitiator.

A light-curable dental impression material comprising

(a) a polymerizable polysiloxane resin composition comprising compounds of formula (I)

E(L.sup.1Z).sub.nL.sup.2E (I)

(b) a particulate filler; and
(c) a photoinitiator.

Provided herein is a curable silicone composition that has high optical transparency after being cured and that is in a putty form to be hand-mixable. A curable silicone composition contains: a specific organopolysiloxane as a component (1); a specific organohydrogenpolysiloxane as a component (2); a filler as a component (3); and a catalyst as a component (4). The difference between the refractive index of one of the components (1) to (3) that has the highest refractive index and the refractive index of one of the components (1) to (3) that has the lowest refractive index is 0.1000 or less. The complex viscosity of any of constituent compositions of the curable silicon composition before the curable silicone composition is cured is 10 Pa.Math.s to 100000 Pa.Math.s, as measured under predetermined measurement condition.