Abstract: Dental adhesive composition comprising (a) a polymerisable monomer or prepolymer, and (b) a solvent comprising t-butanol.

Abstract: Polymerizable dental composite comprising a solid filler and an organic polymerizable matrix, said polymerizable matrix comprising: (i) a polymerizable (meth)acrylic monomer having at least two polymerizable groups and (ii) from 1.0 to 15 weight-% of a polymerizable monomer having a carboxylic acid group based on the total weight of said polymerizable matrix.

Abstract: Dental adhesive composition comprising (a) a polymerisable monomer or prepolymer, and (b) a solvent comprising t-butanol.

Abstract: Polymerizable dental composite comprising a solid filler and an organic polymerizable matrix, said polymerizable matrix comprising: (i) a polymerizable (meth)acrylic monomer having at least two polymerizable groups and (ii) from 1.0 to 15 weight-% of a polymerizable monomer having a carboxylic acid group based on the total weight of said polymerizable matrix.

Abstract: A composite material is provided which, while having an unusually high filler content may be extruded from a dental syringe and remains easily adaptable in the dental cavity. When materials of the present invention are cured, dental restorations are provided which have unusually high surface hardness and yield strength, as well as a low volume shrinkage on curing. This is achieved by use of a mixture of filler particles with a specific size, size range, and size relationship. Such a combination of properties makes the material of the present invention particularly useful for restoring cavities in posterior teeth.

Abstract: A composite material is provided which, while having an unusually high filler content may be extruded from a dental syringe and remains easily adaptable in the dental cavity. When materials of the present invention are cured, dental restorations are provided which have unusually high surface hardness and yield strength, as well as a low volume shrinkage on curing. This is achieved by use of a mixture of filler particles with a specific size, size range, and size relationship. Such a combination of properties makes the material of the present invention particularly useful for restoring cavities in posterior teeth.

Abstract: The invention provides an improved dental/medical restorative/prosthetic composition employing a polymerizable unsaturated substituted butane moiety with acid or reactive acid derivative functionality having the general formula:(RO.sub.2 C).sub.x --C.sub.4 H.sub.6 --(CO.sub.2 R').sub.ywhere R is an acid radical or a reactive acid derivative and R' is a polymerizable unsaturated radical having from 2 to 13 C and x is 2 to 3 and y is 1 to 2.

Abstract: A biologically compatible adhesive dental primer that is shelf stable as a single component adhesive and includes a mixture of an adhesive promoting and polymerizable monomer system having a free radical polymerizable monomer or prepolymer having ethylenic unsaturation and a phosphorus containing adhesion promoter which is free from halogen atoms bonded directly to a phosphorus atom, and optionally a free radical polymerization catalyst, and an accelerator for the catalyst.

Abstract: A biologically compatible adhesive that is shelf stable as a single component adhesive and includes a mixture of an adhesive promoting and polymerizable monomer system having a free radical polymerizable monomer or prepolymer having ethylenic unsaturation and a phosphorus containing adhesion promoter which is free from halogen atoms bonded directly to a phosphorus atom, a free radical polymerization catalyst, and an accelerator for the catalyst, the accelerator selected from the group consisting of sulfinic acid or salt thereof, amine or amine salt and mixtures thereof.

Abstract: A biologically compatible adhesive that is shelf stable as a single component adhesive and includes a mixture of an adhesive promoting and polymerizable monomer system having a free radical polymerizable monomer or prepolymer having ethylenic unsaturation and a phosphorus containing adhesion promoter, a free radical polymerization catalyst, and an accelerator for the catalyst, the accelerator selected from the group consisting of sulfinic acid or salt thereof, amine or amine salt and mixtures thereof.

Abstract: An adhesion promoter, suitable for improving the adhesion of composite dental material to tooth enamel, comprises a solution in a volatile organic solvent therefor, such as a lower alkanol, of a polyethylenically unsaturated monophosphate or salt thereof, containing a monophosphate radical and at least three ethylenically unsaturated groups (preferably terminal ethylenically unsaturated groups) per molecule. Preferred polyunsaturated phosphates are monophosphates of polyhydric alcohols containing at least four hydroxyl groups per molecule in which at least three hydroxyl groups are esterified with an ethylenically unsaturated carboxylic acid, and especially preferred polyunsaturated phosphates (which are provided as new compounds) are those of the formula: ##STR1## in which: R is an aliphatic (optionally interrupted by one or more oxygen atoms) cycloaliphatic or aryl radical having a valency of n+1 and containing from 4 to 16 carbon atoms,R.sup.1 is a hydrogen atom, alkyl C.sub.1 -C.sub.