X-ray opaque dental filling composition-brominated aromatic di-methacrylic ester polymerizable component

Claim 2

A dental restoration material capable of being polymerized in a tooth cavity under physiologically tolerable conditions, comprising: between approximately 15 and approximately 50 percent by weight of polymerizable compounds, said polymerizable compounds containing an effective amount to impart X-ray opacity to the composition of one or more brominated monomers of the formula: ##STR8## where R represents hydrogen or a methyl group, X represents a ##STR9## group and n is 0 to 3; and a silanized dental filler.

Claim 3

The dental restoration material of claim 1, which contains a compound of the formula: ##STR10##

Claim 4

The dental restoration material of claim 1, which contains a compound of the formula: ##STR11##

Claim 5

The dental restoration material of claim 1, which contains a compound of the formula: ##STR12##

Claim 6

The dental restoration material of claim 1, wherein said brominated monomers of the formula (I) are present in an amount of 30 to 90% by weight based on the total weight of the polymerizable compounds.

Claim 7

The dental restoration material of claim 2, wherein said brominated monomers of the formula (I) are present in an amount of 30 to 90% by weight based on the total weight of polymerizable compounds.

Claim 8

The dental restoration material of claim 3, wherein said brominated monomers of the formula (I) are present in an amount of 30 to 90% by weight based on the total weight of polymerizable compounds.

Claim 9

The dental restoration material of claim 4, wherein said brominated monomers of the formula (I) are present in an amount of 30 to 90% by weight based on the total weight of polymerizable compounds.

Claim 10

The dental restoration material of claim 1, wherein said brominating monomers of the formula (I) are present in an amount of 55 to 85% by weight based on the total weight of polymerizable compounds.

Claim 11

The dental restoration material of claim 1, which is a light-curable composition.

Claim 12

The dental restoration material of claim 10, which contains at least one silanized dental filler having a particle size of between approximately 0.01 and approximately 30 micrometers and at least one polymerization accelerator.

Claim 13

The dental restoration material of claim 1, which is a one-part, light-curable composition.

Claim 14

The dental restoration material of claim 11, which is a one-part, light-curable composition.

Claim 15

A photopolymerizable dental restoration material capable of being polymerized in a tooth cavity under physiologically tolerable conditions, comprising: approximately 15 to approximately 50% by weight of polymerizable compounds containing an effective amount to impart X-ray opacity to the composition of at least one brominated monomer of the formula: ##STR13## wherein R represents hydrogen or a methyl group, X represents a ##STR14## group and n is 0 to 3; approximately 50 to approximately 85% by weight of at least one silanized dental filler with an average particle diameter of less than 30 micrometers; and approximately 0.05 to approximately 2.0% by weight of at least one polymerization initiator, polymerization accelerator or mixtures thereof.

Claim 16

A photopolymerizable dental restoration material capable of being polymerized in a tooth cavity under physiologically tolerable conditions, comprising: approximately 15 to approximately 50% by weight of polymerizable compounds containing an effective amount to impart X-ray opacity to the composition of at least one brominated monomer of the formula: ##STR13## wherein R represents hydrogen or a methyl group, X represents a ##STR14## group and n is 0 to 3; approximately 50 to approximately 85% by weight of at least one silanized dental filler with an average particle diameter of less than 30 micrometers; and approximately 0.05 to approximately 2.0% by weight of at least one polymerization initiator, polymerization accelerator or mixtures thereof.

Claim 17

The dental restoration material of claim 14, wherein 30 to 90% by weight of the total weight of said polymerizable compounds are said brominated monomers of the formula, (I).

Claim 18

The dental restoration material of claim 14, wherein 55 to 85% by weight of the total weight of said polymerizable compounds are said brominated monomers of the formula (I).

Claim 19

The dental restoration material of claim 15, wherein 60 to 75% by weight of the total weight of said polymerizable compounds are said brominated monomers of the formula (I).

Claim 20

The dental restoration material of claim 14, wherein polymerizable compounds are present in an amount of approximately 20 to approximately 40% by weight based on the total weight of the composition.

Claim 21

The dental restoration material of claim 14, wherein said silanized dental filler is present in an amount of approximately 60 to approximately 80% by weight.

Claim 22

The dental restoration material of claim 14, wherein the particle sizes of said silanized dental filler are between 0.01 and 30 micrometers.

Claim 23

The dental restoration material according to claim 14, wherein said filler is a mixture of barium alumimum silicate glass with an average particle size of between approximately 3 and 10 micrometers and a finely divided colloidal silica with an average particle diameter between approximately 30 and 100 nm.

Claim 24

The dental restoration material of claim 21, wherein the major part of said mixture is said silica.

Claim 25

The dental restoration material of claim 14, which contains a silica-gel with an average particle diameter of between approximately 20 and approximately 200 nm as said filler.

Claim 26

The dental restoration material of claim 14, wherein the major part of said filler is a silica-gel.