102results about "Dental primers" patented technology

Etching compositions, curable compositions, packaged products and methods of use for the treatment of bone substrate, i.e., teeth, are described. The etch compositions generally include a gelling agent, an inorganic acid, an organic acid and either a solvent, a surfactant or mixtures thereof. The curable composites include reactive monomers and crosslinking agents that are effective to adhere to the surface of the treated substrate. The methods of the invention provide the ability to modify a bone or bone-like surface so that the curable composition, such as an adhesive resin, can be used in combination with a restorative material.

The invention provides a self etching adhesive dental primer composition, a method of use of the primer composition and a product formed from the primer. The dental product is formed from the primer composition which includes water, surfactant and polymerizable material in suspension in the water. The polymerizable material includes monomers which are water immiscible. Preferably the monomers have an average molecular weight less than 1000. The primer composition is used by applying the composition to unetched dental tooth enamel and the polymerizable material is polymerized to form a dental product having adhesion to the enamel of more than 13 MPa. Improved surfactants which contain at least one ethenically unsaturated polymerizable group are provided in accordance with the invention. Surfactants of the present invention copolymerize with and become an integral part of any polymerizable resin matrix in which they are incorporated. This prevents migration of the surfactant through the matrix or slow leaching-out through the interfaces, and brings advantages of biocompatibility and stability of the physical properties of the cured matrix. In addition, the surfactant becomes a permanent part of the matrix, and forms part components of the matrix.

Dental implant assemblies, custom dental implants, and custom dental prosthesis and components each individually designed and manufactured to replace nonfunctional natural teeth of a specific pre-identified patient are provided. An example dental prosthesis / assembly includes a transgingival interlock abutment having a prosthesis interface formed therein to receive an occlusally-facing dental prosthesis component, and an implant interface form to receive a dental implant body. The prosthesis interface has a custom three-dimensional surface shape formed to create a form locking fit with respect to the occlusally-facing dental prosthesis component when connected herewith. The implant interface also has a custom three-dimensional surface shape formed to create a form locking fit with respect to the dental implant component when connected therewith.

A composition for simultaneously etching and priming a tooth surface prior to restoration, comprising a solution of an -SO3 terminated compound resin, and an optional fluoride source. In practice, the composition is applied to the tooth surface and not subsequently washed prior to application of an adhesive or other restorative material.

The present invention refers to a method of infiltrating enamel for the prevention and / or treatment of carious lesions comprising (a) exposing an enamel area to a conditioner comprising hydrochloric acid; (b) exposing the conditioned enamel area to an infiltrant; and (c) curing the infiltrant. The present invention further refers to a kit for carrying out the method of infiltrating enamel, which comprises a conditioner comprising hydrochloric acid and an infiltrant comprising at least one low viscous dental resin. The present invention also refers to a method for identifying an infiltrant by calculation of the penetration coefficient, and to an infiltrant identified by the method having a penetration coefficient of >50 cm / s or comprising a low viscous light curing resin having a penetration coefficient of >50 cm / s.

The present invention provides a dental resin cement which is excellent in a mechanical strength, workability and storage stability, and a dental primer which significantly improves adhesiveness of the dental resin cement both to enamel and dentin of a tooth. According to the present invention, a salt of barbituric acid is used as a polymerization initiator in the dual-cure two-paste type dental resin cement being excellent in workability and storage stability to improve the storage stability, and a primer containing barbituric acid and amine is applied to a surface of a tooth to significantly improve adhesiveness of the dental resin cement both to enamel and dentin of teeth.

An adhesive system has been developed for orthodontic ceramic brackets which minimizes tooth fracture and makes bracket removal easier and more predictable. The adhesive system makes use of current filled adhesives and a plasticizer (e.g. diethyl phthalate, xylene, etc.). Additions of plasticizer between 10 to 20 weight percent of the adhesive will decrease the adhesion in excess of 50%. This adhesive permits more patient comfort while at the same time allowing for the use of ceramic brackets.

Stable self-etching copolymerizable primer compositions including are provided including compounds having a polymerizable ethylenically unsaturated groups and acidic groups, and optionally comonomers and suitable solvents. Such compositions are used in conjunction with dental adhesives to provide one or multi-component dental systems capable of etching or decalcifying tooth dentin and enamel without the need for a separate rinse step. Methods of use of such compositions according to the present invention include application for priming and imparting enhanced adhesion between the primers, adhesives, and the tooth substrates such as dentin or cut or uncut enamel, and subsequently applied dental composites, restoratives or other dental components.

A fluoride treated medical implant, such as a dental component, is provided, the medical implant comprising fluorinated metal oxide on the substrate surface. A method for the preparation of such treated implants is also provided, the method involving exposure of the medical implant to a fluorine-containing reagent. A dental structure is also provided, which includes a first dental component comprising a fluorinated metal oxide layer on its surface, a silane coupling agent, a dental cement, and a second dental component having a surface bonded to the dental cement. An additional dental structure, which includes a first dental component comprising a fluorinated metal oxide layer on its surface, a dental cement, and a second dental component having a surface bonded to the dental cement is also provided.

The present application provides dental fillers, and methods of making and using dental fillers that include a treated surface that includes phosphorus and a divalent cation. Dental compositions including such dental fillers can be useful for delivering ions to the oral environment.

A method for etching and treating a tooth surface prior to restoration, comprising a solution comprising of an -SO3 terminated compound resin, such as an -SO3H compound resin, and an aldehyde desensitizing compound. In practice, the composition is applied to the tooth surface and not subsequently washed prior to application of an adhesive or other restorative material.

Etching compositions, curable compositions, packaged products and methods of use for the treatment of bone substrate, i.e., teeth, are described. The etch solutions generally include an inorganic acid, an organic acid and either a solvent, a surfactant or mixtures thereof. The curable composites include reactive monomers and crosslinking agents that are effective to adhere to the surface of the treated substrate. The methods of the invention provide the ability to modify a bone or bone-like surface so that the curable composition, such as an adhesive resin, can be used in combination with a restorative material.

Disclosed is a one-pack type dental adhesive composition comprising:(a) 1.0 to 40.0 parts by weight of a silane coupling agent,(b) 0.01 to 0.4 part by weight of a weak acidic compound which is at least one of organic acid, boric acid and silicic acid, and has an acid dissociation exponent pKa of 3 or more in the form of an aqueous solution,(c) 0.01 to 0.4 part by weight of a strong acidic compound which is at least one of HF, HCl, HBr, HI, HNO3, HClO3, HClO4, HBrO4, HMnO4, H2SO4 and H3PO4 and has an acid dissociation exponent pKa of less than 3,(d) 0.1 to 5.0 part by weight of water, and(e) 20.0 to 99.0 parts by weight of a volatile organic solvent.

A tooth surface treatment composition includes an acidic component which is at least one water-soluble acid in an aqueous solution, such that when the composition is applied to the tooth surface and not subsequently washed, it will increase the adhesiveness of the tooth structure. A method of treating a tooth structure includes contacting the tooth structure with such a composition.

A method for etching and treating a tooth surface prior to restoration, comprising a solution comprising of an -SO3 terminated compound resin, such as an -SO3H compound resin, and an aldehyde desensitizing compound. In practice, the composition is applied to the tooth surface and not subsequently washed prior to application of an adhesive or other restorative material.

A gel composition for use in etching the surfaces of teeth in preparation for prophylaxis, repair, or restoration, comprising an aqueous solution of an effective quantity of an acid; and a colloidal silica sol, wherein the silica portion of the sol comprises from about 3 to about 20 weight percent of the total etchant composition.

The present invention provides a dental color tone adjustment material kit that has improved properties in terms of surface drying and of discoloration after curing and that enables adjustment to a desired color tone. The present invention relates to a dental color tone adjustment material kit including: a primer composition (A) including an acid group-containing polymerizable monomer (a) and a volatile organic solvent (b); and a dental color tone adjustment material B including a polymerizable monomer (d), a polymerization initiator (e), particle aggregates (f) that are chain aggregates of ultrafine filler particles having an average primary particle diameter of 1 to 50 nm, titanium dioxide (g), and a pigment (h). The monomer (a) accounts for 0.05 to 45 weight % of the primer composition (A), and the organic solvent (b) accounts for 55 to 99.95 weight % of the primer composition (A). The monomer (d) includes a polyfunctional acrylate monomer (d1) and a volatile monofunctional (meth)acrylate monomer (d2), and the monomers (d1) and (d2) account for 88 weight % or more of the monomer (d). The content of the particle aggregates (f) is 5 to 20 parts by weight, and the content of the titanium dioxide (g) is 0.05 to 2 parts by weight, per 100 parts by weight of the total of the monomer (d) and the particle aggregates (f).

A method is provided for shaping a custom dental restoration from a preform, wherein the preform comprises a preform body and a preform stem. A method is further disclosed for generating one or more nesting positions for the restoration design within the geometry of the preform body relative to the position of the preform stem. A method is further disclosed for generating machining instructions based on the selected nesting position to optimize machining for chair-side applications.

The invention provides a ceramic material and a repair material for improving the surface adhesion of dental zirconia, and a preparation method and a bonding method of the ceramic material and the repair material. The ceramic material comprises SiO2, B2O3, GeO2, Al2O3, Li2O, Nb2O5, Na2O, ZrO2, P2O5 and rare earth oxide. The ceramic material provided by the invention contains GeO2, on one hand, the GeO2 can replace SiO2 in the ceramic material, the high-temperature melting temperature of glass is reduced, and the production cost is saved; on the other hand, the ratio of Si to Li can be effectively reduced, so that fine and uniform lithium disilicate crystals are formed after crystallization, and the bonding strength with a zirconium oxide matrix is improved.

A dental material comprising (a) at least one curable monomer and / or polymer component, and (b) at least one filler component comprising agglomerated oxide particles having a matrix and a doping component, whereby the matrix contains silicon dioxide and the doping component comprises zirconium dioxide, whereby the agglomerated oxide particles are incorporated into the cured polymer matrix of the dental material and are abraded only in layers together with the polymer matrix of the dental material during an abrasion process and do not chip away as individual, intact particles. Moreover, the cured dental material possesses high transparency.

The invention relates to a dentin collagen fiber demineralization material and a preparation method and an application thereof. In particular, the invention relates to a conjugate of water-soluble chitosan and an amino carboxylic acid metal chelating agent, and a use thereof for dental demineralization, preferably for dentin demineralization. The invention also discloses the dentin collagen fiberdemineralization material and the preparation method and the application thereof. The material is prepared from 0.5-1 part by mass of water-soluble chitosan, 10-30 parts by mass of EDTA and 0.8-1.5 parts by mass of a crosslinking agent. The invention also relates to a dental demineralization composition including the conjugate and the material. The conjugate, material and composition can be used for dentin demineralization treatment before dental adhesive repair. When being used as a dentin collagen demineralization agent, the conjugate, material and composition have excellent selective extrafibrous demineralization performance, good biocompatibility, effective bacteriostasis, inhibition of endogenous matrix proteinase activity and extremely low cytotoxicity.

The present invention provides a dental etching gel composition including phosphoric acid in aqueous solution form, a viscosity-enhancing agent and optionally additives, in which the viscosity-enhancing agent is carboxymethyl cellulose (CMC) with the following properties:(a) having a viscosity of about 100 to about 2000 cps when formulated as an aqueous solution containing 1 wt % of CMC; and(b) having an average degree of substitution of sodium salts in molecular formula of about 21% to about 33%.The dental etching gel composition of the present invention can be used to pre-treat the surface of teeth prior to repair or filling. The etching gel formed by combining phosphoric acid in aqueous solution form with CMC viscosity-enhancing agent having the specific properties stated above is less fluid and thus can be used to etch the specific surface of the tooth so as to obtain a rough surface which improves the close adhesion between teeth and filling resins in the subsequent repairing or filling process.

Etching compositions, curable compositions, packaged products and methods of use for the treatment of bone substrate, i.e., teeth, are described. The etch solutions generally include an aqueous acidic solution with an ethylenically unsaturated monomer and a silane. The methods of the invention provide the ability to modify a bone or bone-like surface so that the curable composition, such as an adhesive resin, can be used in combination with a restorative material.

A dental adhesive composition comprising (i) at least one non-acidic polymerizable monomer having at least one ethylenically unsaturated group, (ii) optionally one or more acidic compounds, (iii) at least one photoinitiator, (iv) at least one solvent, and (v) about 0-40% by weight of one or more fillers; wherein the weight ratio of non-acidic polymerizable monomers / acidic compounds in the adhesive composition is more than about 4.5; the viscosity of the adhesive composition is less than about 350 centipoise (cP) at 25° C.; and the adhesive composition excluding solvent and filler has an acid number of less than about 0.75 mmol NaOH / g. The dental adhesive composition is used with a dental primer composition, which may be provided together in a kit.