The invention relates to a polymerisable dental composite material comprising (i) 40 to 90% by weight of an inorganic filler component comprising at least one dental glass, as well as optionally at least one an amorphous metal oxide, (ii) 10 to 60% by weight of at least one urethane (alkyl) acrylate of the idealised formula I, (iii) 0.01 to 15% by weight of at least one di-, tri-, tetra- or multi-functional monomer not being a urethane (alkyl) acrylate, (iv) 0.01 to 10% by weight of at least one initiator, of an initiator system, as well as optionally of at least one stabiliser, and optionally of at least one pigment, the total composition of the composite material amounting to 100% by weight, as well as to a polymerised composite material for producing direct dental restorations or indirect dental restorations.

The invention relates to a polymerisable dental composite material comprising (i) 40 to 90% by weight of an inorganic filler component comprising at least one dental glass, as well as optionally at least one an amorphous metal oxide, (ii) 10 to 60% by weight of at least one urethane (alkyl) acrylate of the idealised formula I, (iii) 0.01 to 15% by weight of at least one di-, tri-, tetra- or multi-functional monomer not being a urethane (alkyl) acrylate, (iv) 0.01 to 10% by weight of at least one initiator, of an initiator system, as well as optionally of at least one stabiliser, and optionally of at least one pigment, the total composition of the composite material amounting to 100% by weight, as well as to a polymerised composite material for producing direct dental restorations or indirect dental restorations.

A radically polymerizable material for the preparation of dental prostheses, containing (a) at least one monofunctional radically polymerizable (meth)acrylate, (b) at least one polyfunctional radically polymerizable (meth)acrylate, (c) at least one ABA triblock copolymer, (d) at least one nanoparticulate or microfine filler having an average primary particle size of from 10 nm to 350 nm, and (e) at least one photoinitiator. The A block of the ABA triblock copolymer is an oligomeric polyester and the B block is an oligomeric polysiloxane.

A radically polymerizable material for the preparation of dental prostheses, containing (a) at least one monofunctional radically polymerizable (meth)acrylate, (b) at least one polyfunctional radically polymerizable (meth)acrylate, (c) at least one ABA triblock copolymer, (d) at least one nanoparticulate or microfine filler having an average primary particle size of from 10 nm to 350 nm, and (e) at least one photoinitiator. The A block of the ABA triblock copolymer is an oligomeric polyester and the B block is an oligomeric polysiloxane.

Methods and kits for removing calculus from a tooth, wherein the method can include applying a component A to the tooth, wherein component A comprises: a metal ion selected from the group of lithium ion, magnesium ion, calcium ion, a precursor thereto, and a combination thereof; and an aprotic base having a pKb in water of greater than 15.4, or a precursor thereto; applying a component B to the tooth, wherein component B comprises a bicarbonate ion or a precursor thereto; wherein components A and B are applied simultaneously or sequentially to the tooth, thereby generating a gas to soften and/or loosen at least part of the calculus on the tooth; and removing at least a part of the calculus from the tooth.

The compression molded tooth used for practicing dental cutting treatment of the present invention comprises a composition containing a powder or powders of saccharide, polysaccharide, protein, and/or glycoprotein each having a particle size of 1 to 100 m.

A polymerization initiator-containing composition contains a fourth period transition metal compound including a transition metal atom belonging to the fourth period of the Periodic Table, a tertiary amine compound, and a thiourea compound represented by the following general formula (1):

##STR00001##

where R.sup.1 to R.sup.4 each represent one selected from the group consisting of a hydrogen atom, an alkyl group, an aromatic ring group, and a heterocyclic group.

A polymerization initiator-containing composition contains a fourth period transition metal compound including a transition metal atom belonging to the fourth period of the Periodic Table, a tertiary amine compound, and a thiourea compound represented by the following general formula (1):

##STR00001##

where R.sup.1 to R.sup.4 each represent one selected from the group consisting of a hydrogen atom, an alkyl group, an aromatic ring group, and a heterocyclic group.

The present invention relates to a dental composition comprising a specific radically polymerizable compound and a radical initiator system. Furthermore, the present invention relates to the specific radically polymerizable compound and its use in a dental composition. The specific radically polymerizable compound of the present invention has an allyl (meth)acrylamide group and a phosphoric acid ester group.

The present invention relates to a dental composition comprising a specific radically polymerizable compound and a radical initiator system. Furthermore, the present invention relates to the specific radically polymerizable compound and its use in a dental composition. The specific radically polymerizable compound of the present invention has an allyl (meth)acrylamide group and a phosphoric acid ester group.