Microfilled dental composite and method using the same

Claim 2

A filled-resin dental composite consisting essentially of ______________________________________ Component Parts by Weight ______________________________________ Ethoxylated bisphenol A dimethacrylate 53-17.5 Triethylene glycol dimethacrylate 4-13.5 Cure accelerator 0.25-1.0 Antioxidant 0.15-0.5 Curing agent 0.25-1.0 Ultra violet light absorbent 0.4-1.4 Sub-micron hydrophobic silica particles 10-30 Glass particles 20-67, ______________________________________ the silica particles ranging from about 0.1 micron to 0.04 micron in diameter and the glass particles ranging from about two to about thirty microns in diameter.

Claim 3

The dental composite of claim 1 wherein the glass is x-ray opaque.

Claim 4

A veneering dental paste for heat curing consisting essentially of ______________________________________ Component Parts by weight ______________________________________ Ethoxylated bisphenol A dimethacrylate 53-17.5 Triethylene glycol dimethacrylate 4-13.5 Antioxidant 0.15-0.5 Benzoyl peroxide 0.25-1.00 Ultra-violet light absorbent 0.25-1.00 Sub-micron hydrophobic silica particles 10-30 Glass particles 20-67, ______________________________________ the silica particles ranging from about 0.01 micron to 0.04 micron in diameter and the glass particles ranging from about two to about thirty microns in diameter.

Claim 5

A veneering dental paste for heat curing consisting essentially of ______________________________________ Component Parts by weight ______________________________________ Ethoxylated bisphenol A dimethacrylate 53-17.5 Triethylene glycol dimethacrylate 4-13.5 Antioxidant 0.15-0.5 Benzoyl peroxide 0.25-1.00 Ultra-violet light absorbent 0.25-1.00 Sub-micron hydrophobic silica particles 10-30 Glass particles 20-67, ______________________________________ the silica particles ranging from about 0.01 micron to 0.04 micron in diameter and the glass particles ranging from about two to about thirty microns in diameter.

Claim 6

The dental paste of claim 3 wherein the glass is x-ray opaque.

Claim 7

A filled-resin composite consisting essentially of ______________________________________ Component Parts by Weight ______________________________________ Ethoxylated bisphenol A dimethacrylate 53-17.5 Triethylene glycol dimethacrylate 4-13.5 2-hydroxy-4-methoxy benzophenone 0.4-1.5 Butyl hydroxy toluene 0.15-0.5 Benzoyl peroxide 0.25-1.0 2-hydroxyethyl-p-toluidine 0.25-1.0 Sub-micron hydrophobic silica particles 10-30 Barium-containing glass particles 20-67, ______________________________________ the particles size of the silica being in the range of about 0.01-0.04 micron and the particle size of the glass in the range of about two to thirty microns, averaging about seven microns.

Claim 8

A filled-resin composite consisting essentially of ______________________________________ Component Parts by Weight ______________________________________ Ethoxylated bisphenol A dimethacrylate 53-17.5 Triethylene glycol dimethacrylate 4-13.5 2-hydroxy-4-methoxy benzophenone 0.4-1.5 Butyl hydroxy toluene 0.15-0.5 Benzoyl peroxide 0.25-1.0 2-hydroxyethyl-p-toluidine 0.25-1.0 Sub-micron hydrophobic silica particles 10-30 Barium-containing glass particles 20-67, ______________________________________ the particles size of the silica being in the range of about 0.01-0.04 micron and the particle size of the glass in the range of about two to thirty microns, averaging about seven microns.

Claim 9

A microfilled dental composite consisting essentially of ______________________________________ Approximate Ingredient Parts by Weight ______________________________________ Ethoxylated bisphenol A dimethacrylate 21 Triethylene glycol dimethacrylate 5 2-hydroxy-4-methoxybenzophenone 0.5 Butyl hydroxy toluene 0.2 Benzoyl peroxide 0.4 2-hydroxyethyl-p-toluidine 0.4 sub-micron hydrophobic silica particles 20 Glass particles 52, ______________________________________ the particle sizes of the fillers being approximately: silica 0.01-0.04 micron glass 2-30 microns.

Claim 10

A microfilled dental composite consisting essentially of ______________________________________ Approximate Ingredient Parts by Weight ______________________________________ Ethoxylated bisphenol A dimethacrylate 21 Triethylene glycol dimethacrylate 5 2-hydroxy-4-methoxybenzophenone 0.5 Butyl hydroxy toluene 0.2 Benzoyl peroxide 0.4 2-hydroxyethyl-p-toluidine 0.4 sub-micron hydrophobic silica particles 20 Glass particles 52, ______________________________________ the particle sizes of the fillers being approximately: silica 0.01-0.04 micron glass 2-30 microns.

Claim 11

The dental composite of claim 6 wherein the glass contains a barium compound in an amount to render it x-ray opaque.

Claim 12

A microfilled dental composite consisting essentially of ______________________________________ Approximate Ingredient Parts by Weight ______________________________________ Triethylene glycol dimethacrylate 11 Ethoxylated bisphenol A dimethacrylate 16.9 Sub-micron-hydrophobic silica particles 19.7 Glass particles 52.1, ______________________________________ silica 0.01-0.04 micron glass 2-30 microns.

Claim 13

A microfilled dental composite consisting essentially of ______________________________________ Approximate Ingredient Parts by Weight ______________________________________ Triethylene glycol dimethacrylate 11 Ethoxylated bisphenol A dimethacrylate 16.9 Sub-micron-hydrophobic silica particles 19.7 Glass particles 52.1, ______________________________________ silica 0.01-0.04 micron glass 2-30 microns.

Claim 14

The dental composite of claim 8 wherein the glass is x-ray opaque.

Claim 15

A microfilled dental composite consisting essentially of ______________________________________ Approximate Component Parts by Weight ______________________________________ Bis-GMA 36 Triethylene glycol dimethacrylate 24 Sub-micron hydrophobic silica particles 20 Glass particles 20, ______________________________________ the particle sizes being approximately: silica 0.01-0.04 micron glass 2-30 microns.

Claim 16

A microfilled dental composite consisting essentially of ______________________________________ Approximate Component Parts by Weight ______________________________________ Bis-GMA 36 Triethylene glycol dimethacrylate 24 Sub-micron hydrophobic silica particles 20 Glass particles 20, ______________________________________ the particle sizes being approximately: silica 0.01-0.04 micron glass 2-30 microns.

Claim 17

The dental composite of claim 10 wherein the glass is x-ray opaque.