Abstract: Shaped article replicas which are proportionately accurate replicas of a shaped article and which are equal, greater or smaller in size than said shaped article are made by preparing a swellable polymer cavity mold from said shaped article; immersing said swellable polymer cavity mold in a swelling agent system under conditions which will enlarge said cavity mold to a predetermined extent; forming a powder compact in said casting mold or a replica thereof and heating said powder compact to produced a proportionately accurate solid replica of a predetermined size.

Abstract: Shaped articles such as dental onlays and inlays having at least one surface adapted to mate with a mating surface of a second shaped article are produced by a procedure which includes immersing a swellable polymer casting mold in a swelling agent system to swell such casting mold to an extent which compensates for the shrinkage which occurs when a sinterable powder compact made therein or in a solid replica thereof, is heated.

Abstract: A single package adhesive for tooth bonding application comprising a solvent-based homogeneous mixture ofa) an ethylenically unsaturated functional and hygroscopically functional monomer;b) an ethylenically unsaturated functional and hygroscopically functional coupling agent that is capable of (a) chemically reacting with and through the ethylenic bond of the ethylenically unsaturated functional monomer of 1) above and (b) chemically bonding to the surface to which the adhesive is applied;c) a poly-ethylenically unsaturated functional crosslinking agent that is capable of reacting with the monomer of 1) above and the coupling agent of 2) above; andd) a photoinitiator that induces addition polymerization of an ethylenically unsaturated compound.A method for forming a composite and composite structure are included that emply the single package adhesive.

Abstract: A single package adhesive for tooth bonding applications which comprises a bulk-water-free solvent-based homogeneous liquid containing:1) An ethylenically unsaturated monomer that possesses a hygroscopic functional group that (a) is capable of chemically reacting with and through the ethylenic bond of the ethylenically unsaturated-functional monomer of 2) below, and (b) provides the capacity for chemical bonding to the surface to which the adhesive is applied.

Abstract: An antibacterial oral hygiene composition in aqueous form comprising:(a) from about 0.05% to about 0.2% by weight of sodium benzoate;(b) from about 0.01% to about 1.0% by weight of a weak carboxylic acid;(c) from about 2.0% to about 5.0% by weight of a buffering agent capable of buffering the composition to a pH of about 3.0 to about 8.0;(d) from 0% to about 1.5% by weight of a surfactant;(e) from 0% to about 0.2% by weight of sodium saccharin, or an amount sufficient to provide a sweetening effect equivalent thereto of a sweetening agent;(f) from 0% to about 2.0% by weight of a flavoring agent; and(g) sufficient water to total 100%.

Abstract: In the process of implanting a metal dental prosthesis into or on the alveolar bone, to provide anchorage or stabilization either to a tooth or to another prosthesis, which involves surgical exposure of the alveolar bone, providing means for (a) fixing a metal implant in the alveolar bone, and (b) fixing the metal implant to either a tooth or to the other prosthesis, and closing the exposure of the alveolar bone, the improvement which comprises including in respect to such means the step of applying to one or more portions of the implant or to the locus of the implant in the alveolar bone, a primary coating comprising a crosslinked resin that (i) optionally contains leachable fluoride and (ii) is biocompatible with osseous and non-osseous tissue, to effect direct bonding of the implant to the tooth or to the prosthesis, or to bone or to non-osseous tissue or a combination of them. A treated prosthetic is also described.

Abstract: A method and apparatus for heat-curing light-cured resins by means of placing the resin in an oven attachment coupled to a high intensity light source, such that heat generated by the light source raises the temperature within the oven attachment to at least 140.degree. C., and maintains the temperature above 140.degree. C. for at least 10 minutes. The oven attachment has a body fabricated from a rigid material having a relatively low thermal conductivity. The oven attachment is fashioned to fit over the light outlet of a conventional light source. The oven attachment is preferably held in place by the same mechanism that holds a light-curing "wand" to the light source. The light source is turned on for a heating period of approximately 15 minutes, causing the temperature within an oven chamber within the oven attachment to rise. Upon completion of the heating period, the light source is turned off and the heat-cured restoration may be removed.

Abstract: A glass composition, containing barium oxide, which provides a source of leachable fluoride and which can be incorporated into a dental cement composition which, when cured, is radiopaque and translucent.

Abstract: An adhesive composition useful for restoration comprising a finely-divided reinforcing filler, a polymerizable matrix material, a bonding agent, a coupling agent, and a thermal initiator.

Abstract: Two-part dental cement systems based on glass ionomers which are curable on exposure to light. The dental cement systems comprise a two-part blend of sodium N(p-tolyl)glycine-glycidyl methacrylate (Na NTG-GMA) and pyromellitic dianhydride-methyl methacrylate (PMDM) resins and glass ionomers.

Abstract: A dental porcelain having the following composition:______________________________________ Ingredient Weight by Percent ______________________________________ SiO.sub.2 52.7%-64.6% Al.sub.2 O.sub.3 6.3%-16.4% Li.sub.2 O 0%-0.5% Na.sub.2 O 3.9%-14.2% K.sub.2 O 4.5%-11.7% MgO 0%-.3% CaO 1.6%-3.3% Sro 0.9%-2.3% BaO 0.3%-8.1% TiO.sub.2 0.1%-3.6% B.sub.2 O.sub.3 0.2%-5.0% ______________________________________made by blending powdered first-fire frit with pacifiers, heating this first-fire frit to 2000.degree. F., and rapidly cooling the charge.

Abstract: A toothpaste characterized by a low abrasion, non-reactive base formulation. The toothpaste has a near neutral or neutral pH. The toothpaste contains a concentration of citric acid, sodium or potassium citrate, papain, and fine-particle-sized aluminum oxide, in particular portions which effectively clean away plaque, mucin and tartar.

Abstract: A bonding adhesive for dentistry and a method for preparing the surface of dentin, enamel, or other natural or industrial substrates containing or capable of binding metallic ions, for adhesion of composite materials or resins. First, an aqueous solution of phosphoric acid or a mixture of phosphoric and nitric acids along with aluminum oxalate, or phosphoric acid alone, is applied to the surface.

Abstract: A microfilled dental composite containing from about 30% to about 60% filler. The filler being sub-micron hydrophobic silica particles of about 0.01-0.04 micrometers in diameter. The filler is dispersed in ethoxylated bisphenol A dimethacrylate resin containing suitable aliphatic dimethacrylate diluents up to about 40% by weight and curing agents effecting curing.

Abstract: A buffered glass ionomer cement for dental use, including in combination, a mixture of a fine particle, 5-10 microns, powder consisting essentially by weight of______________________________________ silica 20-30% boron oxide 1-10% aluminum oxide 10-20% aluminum fluoride 1-10% calcium fluoride 30-40% phosphorus pentoxide 1-5% ammonium fluoride 1-10% ______________________________________plus five to twenty percent of the weight of the above of zinc oxide and zero to ten percent of titanium dioxide,anda liquid component comprising, by weight polyacrylic acid of low molecular weight, 40% solution in water--100-80% by weight, d-tartaric acid--0-20%. The powder and the liquid component are mixed together in a ratio of from 1:1 to 5:3 by weight.

Abstract: A buffered glass ionomer cement for dental use, including in combination, a mixture of a fine particle, 5-10 microns, powder consisting essentially by weight of______________________________________ silica 20-30% boron oxide 1-10% aluminum oxide 10-20% aluminum fluoride 1-10% calcium fluoride 30-40% phosphorus pentoxide .[.1-5%.]..Iadd.1-10%.Iaddend. ammonium fluoride .[.1-10%.]..Iadd.1-5%.Iaddend. ______________________________________plus five to twenty percent of the weight of the above of zinc oxide and zero to ten percent of titanium dioxide, anda liquid component comprising, by weight polyacrylic acid of low molecular weight, 40% solution in water--100-80% by weight, d-tartaric acid--0-20%. The powder and the liquid component are mixed together in a ratio of from 1:1 to 5:3 by weight.

Abstract: A bonding adhesive for dentistry and a method for preparing the surface of dentin, enamel, or other natural or industrial substrates containing or capable of binding metallic ions, for adhesion of composite materials or resins. First, an aqueous solution of phosphoric acid or a mixture of phosphoric and nitric acids along with aluminum oxalate, or phosphoric acid alone, is applied to the surface. Second, a solution comprising a solvent and at least one compound selected from the group consisting of .[.(1) N-phenylglycine in a mixture with.]. the alkali metal .[.salt.]. .Iadd.salts .Iaddend.of (.Iadd.1) .Iaddend.N-phenylglycine, (2) .[.a mixture of.]. the adduct of .[.the alkali salts.]. N(p-tolyl)glycine and glycidyl methacrylate, .[.with the mixture N(p-tolyl)glycine and glycidyl methacrylate.]. (3) the addition reaction product .[.of the alkali metal salt.].