Dental

A thickening composition comprising a mixture of a Xanthomonas hydrophilic colloid with dextrin. A thickened aqueous media containing a mixture of a Xanthomonas hydrophilic colloid and dextrin. A denture adhesive composition containing a Xanthomonas hydrophilic colloid, dextrin and a buffering salt in...     

A radio-opaque composite material for use as a dental restorative which consists essentially of a conventional polymerizable resin binder and catalysts in admixture with a finely-divided inorganic filler capable of being coupled to the binder. The filler comprises a crystalline silicate containing barium...     

A dental investment material comprising a modified calcium sulfate which when hydrated possesses unique fracture properties of particular advantage when the material is used as a composition for making molds particularly for use in the lost wax process.

Dental cements are prepared by mixing a silicate powder with an aqueous solution of polymers of unsaturated alpha, beta-dicarboxylic acids.

Novel purine compounds substituted with either fluorine or trimethylammonium are useful as adhesives or continuous and non-continuous coatings and are prepared by a novel process.

A tooth whitening cosmetic composition of the type applied temporarily to the dry tooth surface and removable by solvent. The cosmetic composition is characterized by its lustrous white appearance, extended wearing time, thicker viscosity and ease of removal with solvent.

A dental impression composition is formulated from a hydrogenated wood rosin, petrolatum, aluminum powder and talc and includes the following characteristics: (1) good plastic flow at mouth temperature to provide adequate working time with low flow at room temperature; (2) good heat and light stability...     

Dental restorations are prepared by preparing a cavity within a carious tooth for receiving a dental amalgam filling; Coating the surfaces of the cavity with a layer of an adhesive-metal lining composition, the metal of the composition being characterized by the capability of being amalgamated by diffusion...     

Molding compositions useful for molding water-extended hydrophilic articles are provided which are tough, soft and form-stable and comprise, generally, an amide-endcapped hydrophilic alkylene oxide polymer, a crosslinking agent, water, and a filler. The composition is cured by means of an acid catalyst....     

A novel ceramic form of hydroxylapatite and a novel ceramic product comprising a mixture of the latter and whitlockite, the preparation of these ceramics and dental restorative compositions and dental and surgical prosthetic materials containing the same are disclosed. Also described is a novel and improved...     

A novel ultra-violet absorber comprising a cyano-oligomer of Formula I of FIG. 1 of the drawings wherein (Ar).sub.1, (Ar).sub.2, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and Y are organic radicals is given. A radiation curable coating composition with the novel cyano-oligomer, urethane oligomers and vinyl...     

Resinous materials for restoring crowns is disclosed herein, said materials prepared by mixing a modified polymethyl methacrylate in the liquid state with powders of a methacrylic resin polymer.

A curable composition comprising an aromatic dibasic acid having an ethylenically unsaturated group, such as 4-methacryloxyethyltrimellitate, or an acid anhydride thereof, other ethylenically unsaturated monomer and a catalyst is disclosed. This composition is applied between articles to be bonded together...     

An inorganic fluorescent pigment for use in artificial teeth is provided and a method for producing the same, the pigment having the formula (X.sup.. SE+A.sup.. Ce+B.sup.. Tb+C.sup.. Mn).sub.2 O.sub.3.sup.. SiO.sub.2 wherein Se is at least one of the elements yttrium, gadolinium and lanthanum, Ce is...     

An endodontical treatment paste, in particular for the root canal filling of teeth comprising a non-coagulating antiseptic agent such as parachlorophenol camphor, a mixture of products for causing the setting of the paste such as a mixture of eugenol and zinc oxide, and an agent for retarding the setting...     

A glass-ceramic containing Li.sub.2 O, CaO, Al.sub.2 O.sub.3, SiO.sub.2, platinum and Nb.sub.2 O.sub.5 is disclosed. It is highly suitable for use in dental restorations because of its combination of castability, chemical durability and mechanical strength. The aesthetic qualities of natural teeth may...     

A novel, polycrystalline whitlockite ceramic in either pore-free or porous form, processes for the preparation thereof and methods of using the same as biological implant materials are disclosed.

An adhesive composition comprising a 2-cyanoacrylate and at least one member selected from the group consisting of substituted or unsubstituted aliphatic carboxylic acids having three or more carboxyl groups, anhydrides thereof, partial esters thereof, aromatic polycarboxylic acids having three or more...     

A dental porcelain composition which includes, as fluorescing agents, 0.05 to 2% by weight of CeO.sub.2 and 0.1 to 0.5% by weight of Tb.sub.2 O.sub.3.

A composition for detecting normally invisible cracks and splits in teeth, both in situ or in vitro. A detector solution contains a dye adapted to selectively stain such cracks and splits, advantageously methyl violet, a small amount of a surfactant, preferably dioctyl sodium sulfosuccinate, and a small...     

A dental hydraulic investment comprising (A) an aqueous polyvinyl alcohol solution, (B) a water-soluble metallic compound, (C) a water-soluble, thermosetting resin precondensate and (D) a filler. Use of this investment allows formation of a desired denture by either a thermal polymerization or a room...     

An improved composite dental material includes an inorganic component of glass particles separated into two interconnected vitreous phases which have been etched to produce a porous surface layer. The inorganic glass particles are combined with an organic resin to provide the composite dental material....     

A novel dental composition is provided, which comprises; a combination of 8 to 92% by weight of liquid acid phosphates obtained by replacing one or two hydrogen atoms of orthophosphoric acid with alcohols having 3 to 13 carbon atoms and being essentially insoluble in water, and 92 to 8% by weight of...     

A prosthetic denture which is lined on its tissue bearing surfaces with a phosphonitrilic fluoroelastomer layer to provide a resilient, durable cushion for the prosthetic denture; and a method for making same is disclosed.

A dental filling agent is provided, which contains a phosphoric or phosphonic acid ester compound containing at least one polymerizable functional group and either a group of the formula ##STR1## or a group of the formula ##STR2## or a high molecular weight compound obtainable by polymerizing the compound...     

A dental gypsum composition having good pourable consistency and controlled mixing and setting characteristics comprising a mixture of calcium sulfate hemihydrate (calcined gypsum), a condensation product of formaldehyde with a cyclic hydrocarbon containing sulfonic acid groups, and magnesium aluminum...     

In a water soluble glass composition for effecting cross-linking of a polycarboxylic acid cement, typically polyacrylic acid, the glass is treated with phosphorus pentoxide or a phosphate containing material. This inhibits the initial setting stage of the cement and thus prolongs the period within which...     

Dental cavity varnish compositions comprising a solution of nitrocellulose and toluene sulfonamide which wet and precisely conform to each "peak" and "valley" of the extensive microundercuts generated during cavity preparation. The varnish compositions are compatible with composite resin restorative...     

A strong and biocompatible sintered phosphate of calcium ceramics are obtained by sintering a powdery material substantially consisting of phosphate of calcium having a Ca/P ratio of 1.4-1.75, e.g. apatite group and/or tricalcium phosphate, and not exceeding 15% by weight of CaO-P.sub.2 O.sub.5 frit...     

A novel process is disclosed for producing a fracture-free shaped ceramic green body which comprises casting an aqueous suspension of hydroxylapatite, whitlockite or a mixture of these having a high water content and high drying shrinkage in an impervious mold, the cavity surfaces of which are coated...     

A cementitious composition including dry ion-leachable glass powder and further including an agent for modifying the rate of setting. The agent is selected to include the d,l form of tartaric acid.

Odontologic compositions suited for use as denture adhesives, the compositions containing a major amount of gum base and a quantity of a hydrophilic polymer to modify the adhesive properties of the gum base together with processes for producing such compositions.

A dental implant having a sintered and porous surface and comprising a biocompatible ceramic matrix and, intermixed therein, inorganic fibers.

The invention relates to the provision of dental compositions containing a polymerizable (meth)acrylic acid ester of the formula Id as defined herein and includes methods for filling or repairing teeth in warm-blooded animals.

The invention relates to a retention composition for dental prosthesis which, as well as the requisite retention agent, contains a compound inhibiting the growth of bacteria and fungi. The invention aims primarily at eliminating the problems of earlier inhibitors in such compositions which were found...     

Bone resorption from and invagination of epithelial tissue around periodontally involved teeth can be arrested and reversed by coating the affected areas of the tooth roots with a nontoxic, biocompatible composition which acts as a shield against bacterial toxins and which is capable of supporting biological...     

A denture fixative composition contains a dentally acceptable excipient and an effective fixative amount of a fixative mixture comprising hydroxypropyl cellulose and at least one partially neutralized alkyl vinyl ether-maleic acid or anhydride copolymer, optionally partly crosslinked, or a partially...     

The bonding of smooth dental porcelain using glass-ionomer cement has hitherto been difficult. The present invention incorporates particles of an ion-leachable glass, particularly a calcium fluoroaluminosilicate glass, in the dental porcelain and improves the bonding properties.

An oral, settable, dental composition is prepared by interacting Component A containing an alkali metal alginate in an aqueous paste with Component B containing a divalent metal salt such as calcium sulfate and a reaction rate retarder such as tetrasodium pyrophosphate in a fluid plasticizer paste that...     

Bonding to calcified tissues, including human teeth, tooth dentine and bone, is achieved through the medium of crystal growth adhered to the tissue. The crystals preferably comprise gypsum crystals which are formed by contacting the tissue surface with a mildly acidic solution containing sulphate ions.

A novel setting composition for dental purposes comprises a dental silver amalgam alloy composed mainly of silver and tin, and including one or more of copper, zinc, indium, palladium and gold; mercury in an amount sufficient to amalgamate said alloy: and selenium. The selenium may or may not be coated...     

Dental restorative material containing polymerizable (meth)acrylic compounds in admixture with amorphous and crystalline fillers.

A method for restoring a tooth which involves applying to the tooth a glass filler comprising a porous three-dimensional network of inorganic fibres bonded to each other at their points of contact and the porosity of which is substantially continuous throughout the network admixed with a polymeric material.

A method is provided for producing a highly reactive, ion-leachable glass for cement compositions. The method contemplates blending together a mixture of ion-leachable, inorganic compositions, forming the blended mixtures into shaped charges, heating the shaped charges to form a homogeneous melt, and...     

Methods for utilizing a dental prosthesis are disclosed. In particular, the methods for utilizing a dental prosthesis include applying a retention composition including an effective amount of an orally acceptable retention agent so as to provide sufficient adhesive characteristics to the composition...     

A compound and method for preserving dental pulp, the essential ingredient of said compound comprising potassium nitrate and the method comprising as its essential step the capping of the pulp with the aforesaid compound.

Precision dental tools, models, appliances, prostheses, and attachments are produced by providing a glass body of selected conformation, and then heat treating the glass body to yield a glass-ceramic component of superior characteristics wherein tetrasilicic fluormica constitutes the predominant crystal...     

Resin-forming dental restorative material comprising a blend of dipentaerythritol penta- and hexa-acrylate or -methacrylate optionally, tetramethylolmethane tri- or tetra-acrylate or tetramethylolmethane tri- or tetra-methacrylate and a filler having a Mohrs' hardness of at least 5.

Dentures, dental glazes or coatings, reconstructive jacket-crowns and inlays and restorative constructions over metal or preformed alumina substrates are fabricated from a dental porcelain frit prepared by a gel route.

Wear-resistant, high compressive strength permanent dental restorations are prepared from novel compositions comprising (a) a liquid monomer system comprised of one or more monoethylenically unsaturated monomers and one or more polyethylenically unsaturated monomers, (b) a solid particulate system insoluble...     

A biologically compatible non-toxic composition which when mixed, is useful as an in situ curing endodonic filling material. The composition has two separately packaged components. One component is a paste which contains a low viscosity hydroxy terminated polydialkylsiloxane and a non-reactive silicone...     

There is disclosed a single-frit porcelain powder, suitable for use as a porcelain layer on metal-base dental restorations, and having a fired coefficient of thermal expansion within the range of from about 12 to about 14.times.10.sup.-6 in./in. .degree.C., wherein said single frit porcelain is of the...     

Disclosed are improved denture adhesive compositions comprising a hydroxypropyl guar having a M.S. of greater than 0.4, or a hydroxypropyl guar having a M.S. of 0.4 or less and an alkali metal salt of carboxymethyl cellulose having a D.S. of at least 0.3, in a petrolatum base. Optionally, the compositions...     

An oral, settable, dental composition is prepared by interacting Component A containing an alkali metal alginate in an aqueous paste with Component B containing a divalent metal salt such as calcium sulfate and a reaction rate retarder such as tetrasodium pyrophosphate in a fluid plasticizer paste that...     

A method for adhering dentures to oral mucosa with a denture fixative composition containing as the active fixative a partially neutralized and crosslinked polyacrylic acid or a precursor combination of the polyacrylic acid, neutralizing agent(s) and crosslinking agent(s) which is adapted to form the...     

Dental cements with syringate esters such as 2-ethylhexyl syringate with or without vanillate esters dissolved in o-ethoxybenzoic acid as ingredients of the liquid when mixed with metal oxide powder yield rapid setting, insoluble cements that have high strength, do not inhibit free radical polymerization,...     

A composition for treating dental infections, e.g. dental caries caused by Strep. mutans, comprises a varnish containing an antimicrobial agent such as chlorhexidine acetate and benzoin gum in an orally acceptable liquid. The composition can be painted on teeth, allowed to dry thereon to give a transparent,...     

This invention provides an adhesive composition which comprises 1 part by weight of (a) a compound of the general formula: ##STR1## wherein R.sub.1 represents H, a hydrocarbon group of 1-6 carbon atoms optionally containing halogen, COOR' wherein R' represents a hydrocarbon group of 1-20 carbon atoms...     

Powdered alginate compositions formulated with a polymer comprising polyacrylamide have enhanced smoothness characteristics upon admixing with water to obtain orally settable, dental impression material.

An adhesive which comprises (a) 1 part by weight of a polymerizable monomer represented by the formula ##STR1## (where R.sub.1 denotes H or CH.sub.3 ; R.sub.a denotes a C.sub.6-40 organic residue having a valence of m+1; X.sub.1 and X.sub.2 denote O, S, or NR' [where R' denotes H or a C.sub.1-6 hydrocarbon...     

Compositions that are useful and unique as dental remineralizers and dental cements, as well as methods for their use, are disclosed. The compositions are mixtures of at least two sparingly soluble calcium phosphates that are present in excess and a dilute aqueous solution approximately saturated with...     

An improved denture adhesive containing an adhesive polymeric fraction comprising sodium carboxymethylcellulose and poly(ethylene oxide) in a hydrophilic vehicle comprising certain polyethylene glycols and, as an optional component in certain forms of the subject adhesives, glycerin, for enhancing pharmaceutical...     

A dental cement comprising a cement powder to which are added one or more of tannic acid derivatives consisting of the group of a tannic acid-protein combination, a tannic acid-formaldehyde combination, acetyl tannate and a metal salt of tannic acid, said tannic acid derivatives being sparingly soluble...     

An adhesive which comprises (a) 1 part by weight of a compound represented by the formula ##STR1## (where R.sub.1 and R.sub.1 ' denote H or a methyl group, X.sub.1, X.sub.1 ', X.sub.2, and X.sub.2 ' denote O, S, or NR.sub..alpha. [where R.sub..alpha. is H or a C.sub.1-6 alkyl group], m is an integer...     

A gypsum composition for denture investment consists of 100 parts by weight of a mixture of 50-90 parts by weight of .alpha.-Gypsum hemihydrate (.alpha.-CaSO.sub.4.1/2H.sub.2 O) with 10-50 parts by weight of .beta.-Gypsum hemihydrate (.beta.-CaSO.sub.4.1/2H.sub.2 O) and 0.2-2.0 parts by weight of a soluble...     

An improved denture adhesive containing sodium carboxymethylcellulose (CMC) as the sole adhesive component in a hydrophilic vehicle comprising certain polyethylene glycols (PEG) and, as an optional component in certain forms of the subject adhesives, glycerin, for enhancing pharmaceutical elegance of...     

Disclosed is an adhesive coating material for a hard tissue, which comprises (1) a polymer having an acid value of 30 to 700 and including a hydrophobic group and two carboxyl (--COOH) groups or one carboxylic anhydride ##STR1## group bonded to the polymer, said carboxyl groups or carboxylic anhydride...     

An adhesive composition comprises 100 parts by weight of a polymerizable monomer comprising (a) 1.5 to 100 parts by weight of a compound represented by general formula I or II: ##STR1## where R.sub.1 and R.sub.1 ' each stand for hydrogen or a methyl group, R.sub.2 stands for a divalent organic residue...     

A method for strengthened porcelain tooth is disclosed, which comprises depositing one or more inorganic salts of metals selected from rubidium, cesium, and potassium on the surface of a porcelain tooth obtained by sintering a dental porcelain material containing feldspar as a main raw material and sodium,...     

Bonding to calcified tissues, including human teeth, tooth dentine and bone, is achieved through the medium of crystal growth adhered to the tissue. The crystals preferably comprise gypsum crystals which are formed by contacting the tissue surface with a mildly acidic solution containing sulphate ions....     

An all-ceramic dental restorative comprising a core and a glaze having the following composition: PRETEXTREPLACED

An improved denture adhesive containing an adhesive polymeric fraction comprising an admixture of mixed, partial salts of lower alkyl vinyl ether-maleic anhydride-type copolymers with sodium carboxymethylcellulose in a vehicle comprising mineral oil thickened with polyethylene having a molecular weight...     

An interpolymeric resin and composition therefrom is provided for treating teeth to prevent dental caries by forming a protective barrier and providing a source of fluoride ions for release adjacent to the surface of the tooth. The resin includes an anion-exchange-site bearing monomer carrying fluoride...     

A dental cement composition comprises a first ingredient containing as the main component a metal oxide and a second ingredient capable of reacting with the first ingredient to form a set mass, and further contains a tannic acid derivative that is sparingly soluble in water and a reducing agent that...     

An investment material for dental casting comprises 100 parts by weight of a mixture of hemihydrate gypsum, quartz and/or cristobalite and 2 to 5 parts by weight of natural starch optionally with 0.1 to 1.0 part by weight of soluble starch.

Porcelain compositions, especially dental porcelain compositions, which contain leucite crystals in controlled amounts in a glassy phase matrix to permit selective adjustment of the thermal coefficient of expansion of the porcelain compositions, including methods of preparing and using same and products...     

A denture adherent preparation in powder form, which comprises an admixture of (a) from about 40-60% dental adhesive (b) from about 60-4% gel-forming mixture of a water-soluble alginate and a setting agent for the water-soluble alginate in an amount effective to cause gelation of an aqueous solution...     

Calcium phosphate type crystallizable glass for dental materials, which is composed essentially of from 41 to 49.5 mol % of CaO, from 50 to 58.5 mol % of P.sub.2 O.sub.5 and from 0.5 to 5 mol % of Al.sub.2 O.sub.3, and which has an atomic ratio of calcium to phosphorus (Ca/P) within a range of from 0.35...     

A heat sinterable porcelain powder mix and a method of preparing a sintered porcelain product of desired color, particularly for use in the fabrication of dental appliances, which mix comprises an admixture of a porcelain powder with an organic liquid binder, which binder has an index of refraction the...     

A gypsum composition for denture investment comprises 100 parts by weight of a mixture of 50-90 parts by weight of .alpha.-Gypsum hemihydrate (.alpha.-CaSO.sub.4.1/2H.sub.2 O) with 10-50 parts by weight of .beta.-Gypsum hemihydrate (.beta.-CaSO.sub.4.1/2H.sub.2 O) and 0.2-2.0 parts by weight of a soluble...     

A dental cement composition consisting of a composition A and a composition B, said composition A comprising at least two powders, (a) 100 parts by weight of a powder containing more than 20% by weight to 70% by weight of calcium oxide and 30% by weight to less than 80% by weight of aluminium oxide and...     

A dental impression composition is provided which has high tensile and gel strengths, but an absence of graininess through the use of zinc borate and a water soluble alkylene glycol in the composition.

An adhesive composition comprises 100 parts by weight of a polymerizable monomer comprising (a) 1.5 to 100 parts by weight of a compound represented by general formula I or II: ##STR1## where R.sub.1 and R.sub.1 ' each stand for hydrogen or a methyl group, R.sub.2 stands for a divalent organic residue...     

Tetrasilicic fluormica glass-ceramic compositions particularly suited for use in the preparation of dental restorations, consisting essentially in weight percent of about 45-70% SiO.sub.2, 13-30% MgO, 5-20% K.sub.2 O, 0-2% Al.sub.2 O.sub.3, 0-7% ZrO.sub.2, 4-9% F and 1-4% BaO, and porcelain-glazed dental...     

A dental cement composition consisting of a composition A and a composition B, said composition A comprising (a) 100 parts by weight of a powder containing 20 to 70% by weight of calcium oxide and 30 to less than 80% by weight of aluminum oxide, said powder being coated on the surface with a water-soluble...     

A root canal sealer containing medium chain fatty acid triglyceride instead of eugenol, the sealer further contains calcium hydroxide or calcium oxide and bees wax, the blending ratio of the medium chain fatty acid triglyceride and bees wax is 5:95-30:70 by weight, the sealer being applied to an apical...     

A gallium alloy for dental restorations which is hardenable at mouth temperature or around 37.degree. C. or more after triturating multicomponent liquid gallium alloy with alloy powder, is disclosed. The mixture has a heterogeneous structure after hardening, and contains as the overall composition, 9-47%...     

A denture adherent preparation in powder form, which comprises an admixture of (a) a dental adhesive and (b) a gel-forming mixture of a water-soluble alginate and a setting agent for the water-soluble alginate in an amount effective to cause gelation of an aqueous solution containing the water soluble...     

An oral composition such as a mouthwash, toothpaste, gel, toothpowder, tablet, lozenge, and the like comprising a synergistic combination of tridecanol-1 and hexetidine which inhibits the formation of dental plaque.

A two part impression material suitable for use as a dental impression material comprises a first part containing a product of the reaction of an alpha, beta-ethylenically unsaturated dicarboxylic acid anhydride, such as maleic anhydride, and a liquid polydiene resin, e.g. polybutadiene, and a second...     

This invention relates to the formation of a new solid material composed of calcium phosphates and to the reaction method for producing this material. The solid calcium phosphate material is created by chemically reacting calcium ion sources with phosphate ion sources in a molten state and cooling the...     

A staining composition for use in manufacturing artificial tooth, etc. which is composed of Ca and P at their atomic ratio (Ca/P) in a range of from 0.05 to 0.33; and 5 to 28 mol % of Al.sub.2 O.sub.3.

A caries-preventive composition comprises an antibody obtained by immunizing a mammal with at least one antigen selected from the group consisting of Streptococcus mutans, its cell-wall fraction, fibrous substance fraction, glucosyltransferase fraction and protein antigen fraction, and a synergist selected...     

In the making of an impression wherein an impression material comprising an alginate, a pulverulent material and a dust-reducing coating is mixed with water to form a paste, the paste is positioned about a mold member, and permitted to harden, the improvement wherein such coating comprises an iso-paraffin....     

The present invention relates to formulations which are useful as coating materials for example as an undercoating material or lacquer to improve the bonding between collagen-containing materials and hardening polymeric materials. The formulations contain an active ketone and an olefinically unsaturated...     

This invention provides a novel apatite composite ceramic useful for implants such as artificial dental root, artificial bone or the like. The apatite composite ceramic comprises an interconnected structure of fluorapatite phase and an at least partially crystallized biologically active glass phase,...     

An acid and a water-soluble film former are used as a primer for hard tissue (e.g., dentin). The acid has a pK.sub.a less than or equal to that of phenol and the acid and its calcium salt(s) are soluble in the film former. The primer is free of adhesively detrimental quantities of calcium salts that...     

A composition comprising fluoride ion and a polymer which is permselective to fluoride ion is provided for dental prophylaxis or therapy. The composition may be formulated as a gel, for example in a toothpaste; as a dentifrice; or as a mouthwash.

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 PRETEXTREPLACED plus five to twenty percent of the weight of the above of zinc oxide and zero to ten percent of titanium dioxide, and a liquid...     

A thermoplastic dental filling composition is disclosed, comprising a polymer component containing trans-1,4-polyisoprene and an ethylene/vinyl acetate copolymer resin and an insoluble or sparingly soluble inorganic filler. The filling composition of the invention has similar softening operation properties...