A dental material comprising: (i) a polymerizable hydrolysis stable polycyclic amide monomer comprising a compound of Formula wherein R 1, R 2, R 3 and R 4 are independent from each other, and represent a hydrogen, a C 1-4 alkyl group or a C 5 -C 18 aryl group; R 5 is a hydrogen atom, a C 1-6 alkyl group, a C 3-10 cycloalkyl group, a C 7 -C 12 aralkyl group; wherein each group of R 5 is optionally substituted by one or more of a C 1-4 alkyl group, a C 1-4 alkoxy group, or a hydroxyl group; R 6 is a hydrogen atom, a C 1-6 alkyl group, a C 3-10 cycloalkyl group, a C 7 -C 12 aralkyl group, a C 6 -C 10 aryl group, an ester or an amide group, X n is -CH2- m is an integer of from 1 to 6; and Z is an m valent unsubstituted or substituted C 1 -C 18 alkylene group, an unsubstituted or substituted C 3 -C 8 cycloalkylene group, an unsubstituted or substituted aralkylene group, an unsubstituted or substituted C 5 -C 18 arylene group or an unsubstituted or substituted C 3 -C 18 heteroarylene group; wherein each unsubstituted or substituted group of Z optionally includes at least one of 1-6 oxygen, silicon, sulfur atoms, or NR 9, wherein R 9 represents a hydrogen atom, straight or branched or cyclic C 1-6 alkyl groups; (ii) at least one polymerizable resin monomer having at least one (meth)acrylate group, (meth)acrylamide group, allyl group or vinyl group; (iii) optionally a particulate filler; and (iv) at least one of a photoinitiator and a redox initiator. (i) a polymerizable hydrolysis stable polycyclic amide monomer comprising a compound of Formula wherein R 1, R 2, R 3 and R 4 are independent from each other, and represent a hydrogen, a C 1-4 alkyl group or a C 5 -C 18 aryl group; R 5 is a hydrogen atom, a C 1-6 alkyl group, a C 3-10 cycloalkyl group, a C 7 -C 12 aralkyl group; wherein each group of R 5 is optionally substituted by one or more of a C 1-4 alkyl group, a C 1-4 alkoxy group, or a hydroxyl group; R 6 is a hydrogen atom, a C 1-6 alkyl group, a C 3-10 cycloalkyl group, a C 7 -C 12 aralkyl group, a C 6 -C 10 aryl group, an ester or an amide group, X n is -CH2- m is an integer of from 1 to 6; and Z is an m valent unsubstituted or substituted C 1 -C 18 alkylene group, an unsubstituted or substituted C 3 -C 8 cycloalkylene group, an unsubstituted or substituted aralkylene group, an unsubstituted or substituted C 5 -C 18 arylene group or an unsubstituted or substituted C 3 -C 18 heteroarylene group; wherein each unsubstituted or substituted group of Z optionally includes at least one of 1-6 oxygen, silicon, sulfur atoms, or NR 9, wherein R 9 represents a hydrogen atom, straight or branched or cyclic C 1-6 alkyl groups; R 1, R 2, R 3 and R 4 are independent from each other, and represent a hydrogen, a C 1-4 alkyl group or a C 5 -C 18 aryl group; R 5 is a hydrogen atom, a C 1-6 alkyl group, a C 3-10 cycloalkyl group, a C 7 -C 12 aralkyl group; wherein each group of R 5 is optionally substituted by one or more of a C 1-4 alkyl group, a C 1-4 alkoxy group, or a hydroxyl group; R 6 is a hydrogen atom, a C 1-6 alkyl group, a C 3-10 cycloalkyl group, a C 7 -C 12 aralkyl group, a C 6 -C 10 aryl group, an ester or an amide group, X n is -CH2- m is an integer of from 1 to 6; and Z is an m valent unsubstituted or substituted C 1 -C 18 alkylene group, an unsubstituted or substituted C 3 -C 8 cycloalkylene group, an unsubstituted or substituted aralkylene group, an unsubstituted or substituted C 5 -C 18 arylene group or an unsubstituted or substituted C 3 -C 18 heteroarylene group; wherein each unsubstituted or substituted group of Z optionally includes at least one of 1-6 oxygen, silicon, sulfur atoms, or NR 9, wherein R 9 represents a hydrogen atom, straight or branched or cyclic C 1-6 alkyl groups; (ii) at least one polymerizable resin monomer having at least one (meth)acrylate group, (meth)acrylamide group, allyl group or vinyl group; (iii) optionally a particulate filler; and (iv) at least one of a photoinitiator and a redox initiator.