The present invention relates to a dental composition comprising a specific polymerization initiator system comprising a compound having an acylsilyl- or acylgermanyl-group. The present invention also relates the use of the compound having an acylsilyl- or acylgermanyl group for the preparation of a dental composition.

Provided herein are dental compositions and methods for use in dental cementation applications.

Provided are a blank for dental cutting having a part to be cut made from a resin material, wherein the resin material includes a composite material in which inorganic particles are dispersed in a resin matrix, the inorganic particles are made from aggregates of inorganic spherical particles having a specific average primary particle diameter, have a narrow particle size distribution, and include one or a plurality of spherical particle groups of the same particle diameter (G-PID) having a refractive index smaller than that of the resin matrix and an ultrafine particle group (G-SFP), and the arrangement structure of all of the inorganic spherical particles constituting the spherical particle groups of the same particle diameter in the resin matrix has a short-range ordered structure that fulfills specific conditions, and a method for producing the same.

Provided are a blank for dental cutting having a part to be cut made from a resin material, wherein the resin material includes a composite material in which inorganic particles are dispersed in a resin matrix, the inorganic particles are made from aggregates of inorganic spherical particles having a specific average primary particle diameter, have a narrow particle size distribution, and include one or a plurality of spherical particle groups of the same particle diameter (G-PID) having a refractive index smaller than that of the resin matrix and an ultrafine particle group (G-SFP), and the arrangement structure of all of the inorganic spherical particles constituting the spherical particle groups of the same particle diameter in the resin matrix has a short-range ordered structure that fulfills specific conditions, and a method for producing the same.

A method of applying a two-part dental sealant is described comprising providing a syringe device (1) comprising a cartridge (10) including first and second chamber. The first chamber contains a first part of a dental sealant comprising a (meth)acrylate resin and an oxidizing curing agent. The second chamber contains a second part of a dental sealant comprising a (meth)acrylate resin and a reducing curing agent that reacts with the oxidizing curing agent of the first chamber. The first and/or second part of the dental sealant further comprise a single component or multiple components that neutralize acid and promote remineralization. The syringe device comprises a dispensing nozzle (17) comprising a static mixer and an outlet at one end of the cartridge and a plunger (20) at the opposing end of the cartridge. Also described is a kit for storing and applying the dental sealant is described.

A method of applying a two-part dental sealant is described comprising providing a syringe device (1) comprising a cartridge (10) including first and second chamber. The first chamber contains a first part of a dental sealant comprising a (meth)acrylate resin and an oxidizing curing agent. The second chamber contains a second part of a dental sealant comprising a (meth)acrylate resin and a reducing curing agent that reacts with the oxidizing curing agent of the first chamber. The first and/or second part of the dental sealant further comprise a single component or multiple components that neutralize acid and promote remineralization. The syringe device comprises a dispensing nozzle (17) comprising a static mixer and an outlet at one end of the cartridge and a plunger (20) at the opposing end of the cartridge. Also described is a kit for storing and applying the dental sealant is described.

The examples of the present application disclose a method for preparing a dental composite resin material and articles prepared therefrom, wherein the method comprises: (1) weighing in each of raw materials, including ethylenically unsaturated monomer, reinforcing fiber, filler, initiator, polymerization inhibitor and colorant; (2) mixing the weighed raw materials except reinforcing fiber, obtaining a composite resin monomer precursor; (3) impregnating the weighed reinforcing fiber into the composite resin monomer precursor for 1-5 hours, preferably 2-3 hours, at an impregnation negative pressure of less than or equal to 0.1 MPa, obtaining a composite resin monomer precursor-immersed reinforcing fiber; and (4) subjecting the composite resin monomer precursor-immersed reinforcing fiber to a solidification treatment, obtaining the dental composite resin material. The flexural strength of the dental composite resin material provided by the present application is above 600 MPa, and the light transmittance can be up to above 40%.

The present invention provides a dental curable composition comprising (A) a polymerizable monomer, (B) an inorganic filler, and (C) a polymerization initiator, wherein the polymerizable monomer (A) comprises (a1) a polyfunctional (meth)acrylate monomer comprising urethane bonds, (a2) a polyfunctional (meth)acrylate monomer comprising hydroxyl groups, and (a3) a polyfunctional (meth)acrylate monomer comprising carboxyl groups, the ratio by weight of (a1):(a2)+(a3) ranges from 1:1 to 9:1, the number of hydroxyl groups is not more than 0.5 relative to the number of (meth)acryloyl groups in one molecule of the above-mentioned (a2), and the number of carboxyl groups is not more than 0.5 relative to the number of (meth)acryloyl groups in one molecule of the above-mentioned (a3).

A dental self-adhesive resin cement is provided comprising a two-component system. A first catalyst component includes one or more acidic monomers. A second base component includes one or more basic fillers. The mixture of the first and second components is polymerizable and has an initial pH that is acidic immediately after mixing and a pH of at least about pH 8 after polymerization.

A method of applying a two-part dental sealant is described comprising providing a syringe device comprising a cartridge including first and second chamber. The first chamber contains a first part of a dental sealant comprising a (meth)acrylate resin and an oxidizing curing agent. The second chamber contains a second part of a dental sealant comprising a (meth)acrylate resin and a reducing curing agent that reacts with the oxidizing curing agent of the first chamber. The first and/or second part of the dental sealant further comprise a single component or multiple components that neutralize acid and promote remineralization. The syringe device comprises a dispensing nozzle comprising a static mixer and an outlet at one end of the cartridge and a plunger at the opposing end of the cartridge. Also described is a kit for storing and applying the dental sealant is described.