Abstract: Acidic monomer according to Formula I: in which A is a linear or branched aliphatic C1-C18-hydrocarbon group, which can be interrupted by one or more —O—, —S—, —CO—O—, —O—CO—NH—, —HN—CO—NH— or —CO—NR1—; R1 is H or a C1-C6 alkyl group; X is absent or is a linear or branched aliphatic C1-C10 hydrocarbon group, which can be interrupted by one or more —O—, —S—, —CO—O—, —O—CO—NH—, —HN—CO—NH— or —CO—NR2—; R2 is H or a C1-C6 alkyl group; PG is a radically polymerizable group, preferably vinyl, allyl, CH2?CR3—CO—Y— or R4O—CO—C(?CH2)—CH2—Y—; Y?O or NR5 or is absent; R3 is H or CH3; R4 is H or a C1-C7 alkyl group; R5 is H or a C1-C7 alkyl group; n is 1, 2, 3 or 4; m=1 or 2; p=1, 2 or 3; and q=1, 2 or 3. The monomers are particularly suitable as components of dental material.

Abstract: Radically polymerizable silane according to the general formula I in which R1 is a linear or branched aliphatic C1-C9-alkyl radical, phenyl or alkylated phenyl radical, R2, R3 independently of each other in each case are absent or are a linear or branched aliphatic C1-C20-alkylene radical, which can be interrupted by S or O atoms, R4, R5, R6 independently of each other in each case are —Cl, —O—CH3, —O—C2H5, —CH3 or —C2H5, X is CH2 or O, Y is absent, or is O or NR?, wherein R? is H or a C1-5-alkyl radical, and Z is absent, or is O, NR?, —CO—O—, —CO—NR?—, —O—CO—O—, —O—CO—NR?—, or —NR?—CO—NR?—, wherein R? is H or a C1-5-alkyl radical and wherein the radicals R2 and R3 cannot be absent at the same time and Z is absent if R2 or R3 is absent, polycondensates based thereon and fillers surface-modified therewith.

Abstract: Dental material which contains a urea derivative according to general formula I, in which R1 and R2 are in each case independently of each other an aliphatic C1-C15 radical which can be interrupted by —O—, —S—, —CO—O—; X is a radically polymerizable group; Y is a radically polymerizable group or an acid group; n, m are in each case independently of each other 1, 2, or 3.

Abstract: Radically polymerizable dental material which contains at least one radically polymerizable oligomer or polymer with strongly acidic groups, which has a number-average molecular weight of 1,000 to 200,000 g/mol.

Abstract: ?-Ketophosphonic acid according to general formula I: in which A=an aliphatic C1-C18 radical which can be interrupted by —O—, —S—, —CO—O— or —O—CO—C—; n=1, 2, 3 or 4; m=1 or 2; X=absent or a C1-C10 radical which can be interrupted by —O—, —S—, —CO—C—, —O—CO—NH— or —CO—NR1—, wherein R1 is H or C1-C7-alkyl; and PG=a group which can undergo free radical polymerization. The ?-ketophosphonic acids are suitable in particular for the preparation of dental materials.

Abstract: Radically polymerizable dental material which contains at least one radically polymerizable oligomer or polymer with strongly acidic groups, which has a number-average molecular weight of 1,000 to 200,000 g/mol.

Abstract: Dental material which contains a urea derivative according to general formula I, in which R1 and R2 are in each case independently of each other an aliphatic C1-C15 radical which can be interrupted by —O—, —S—, —CO—O—; X is a radically polymerizable group; Y is a radically polymerizable group or an acid group; n, m are in each case independently of each other 1, 2, or 3.

Abstract: ?-Ketophosphonic acid according to general formula I: in which A=an aliphatic C1-C18 radical which can be interrupted by —O—, —S—, —CO—O— or —O—CO—C—; n=1, 2, 3 or 4; m=1 or 2; X=absent or a C1-C10 radical which can be interrupted by —O—, —S—, —CO—C—, —O—CO—NH— or —CO—NR1—, wherein R1 is H or C1-C7-alkyl; and PG=a group which can undergo free radical polymerization. The ?-ketophosphonic acids are suitable in particular for the preparation of dental materials.

Abstract: The invention relates to a dental material which comprises a polymerizable bisphosphonic acid of Formula I: The invention also relates to the use of a polymerizable bisphosphonic acid of Formula I for the preparation of a dental material and in particular for the preparation of an adhesive, cement or composite.

Abstract: The invention relates to a dental material which comprises a polymerizable bisphosphonic acid of Formula I: The invention also relates to the use of a polymerizable bisphosphonic acid of Formula I for the preparation of a dental material and in particular for the preparation of an adhesive, cement or composite.