Cumene hydroperoxide oligomer according to Formula (I):

##STR00001##

in which OLIGOMER is a homo- or copolymer chain, which is substituted n times by the group which is in brackets; Q is absent or is a divalent aromatic C.sub.6-C.sub.14 hydrocarbon radical or an aliphatic, linear or branched C.sub.1-C.sub.14 hydrocarbon radical, which can be interrupted by one or more S and/or O atoms and/or —O—CO—NR.sup.1— and which can be substituted by one or more substituents; X, Y independently of each other in each case are absent, —O—, —COO—; —CONR.sup.3— or —O—CO—NR.sup.4—, wherein X is absent if Q is absent, and wherein the substitution on the aromatic compound is effected in position 2, 3 or 4 relative to the cumene hydroperoxide group; and n is a value from 1 to 50.

Cumene hydroperoxide oligomer according to Formula (I):

##STR00001##

in which OLIGOMER is a homo- or copolymer chain, which is substituted n times by the group which is in brackets; Q is absent or is a divalent aromatic C.sub.6-C.sub.14 hydrocarbon radical or an aliphatic, linear or branched C.sub.1-C.sub.14 hydrocarbon radical, which can be interrupted by one or more S and/or O atoms and/or —O—CO—NR.sup.1— and which can be substituted by one or more substituents; X, Y independently of each other in each case are absent, —O—, —COO—; —CONR.sup.3— or —O—CO—NR.sup.4—, wherein X is absent if Q is absent, and wherein the substitution on the aromatic compound is effected in position 2, 3 or 4 relative to the cumene hydroperoxide group; and n is a value from 1 to 50.

Disclosed are a dental material with transmittance and color gradients and a method of preparing the dental material. The method includes (1) preparing at least three types of composite resin material precursor powders; (2) sequentially adding the precursor powders into a mold and performing dry pressing to obtain a preform body; alternatively, (2′) dry pressing the first type of precursor powder into a first green body, wrapping the first green body with the second type of precursor powder and then performing dry pressing to obtain a second green body, and repeating the wrapping and dry pressing operations until all types of precursor powder are dry pressed to obtain a preform body; and (3) performing hot-pressing consolidation on the preform body to obtain the desired dental material.

The present invention relates to a process for the preparation of a dental resin-modified glass ionomer composition comprising a polymerizable polyacidic polymer, wherein the process comprises the following steps as further defined in claim 1.

The present invention relates to a process for the preparation of a dental resin-modified glass ionomer composition comprising a polymerizable polyacidic polymer, wherein the process comprises the following steps as further defined in claim 1.

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

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

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.

A radically polymerizable dental material having at least one radically polymerizable monomer without acid groups, at least one radically polymerizable monomer containing an acid group, at least one fluoroaluminosilicate glass filler and/or radiopaque glass filler, and at least one initiator for the radical polymerization, wherein the filler is an acid-treated fluoroaluminosilicate glass filler and/or radiopaque glass filler.