A dental restorative curable compositions may have a high mechanical strength and excellent water resistance and polishability in the form of a cured product. A dental composite resin may include such compositions. A dental mill blank may include the cured product of such compositions. A dental restorative curable composition may include: a (meth)acrylic acid ester compound (A) having two or more (meth)acryloyloxy groups per molecule; a mono(meth)acrylic acid ester compound (B); an inorganic filler (C) having an average primary particle diameter of 0.01 to 5 μm; and a polymerization initiator (D). The mono(meth)acrylic acid ester compound may include at least one selected from the group consisting of a mono(meth)acrylic acid ester compound (B-1) of formula (I):

##STR00001##

and
a mono(meth)acrylic acid ester compound (B-2) of formula (II):

##STR00002##

A method of manufacturing a monomer composition includes a step of mixing a zinc catalyst (A), an iso(thio)cyanate compound (B) having an iso(thio)cyanate group, and an alcohol compound (C) having a hydroxy group, and at least one of the iso(thio)cyanate compound (B) or the alcohol compound (C) has a (meth)acryloyl group.

A method of manufacturing a monomer composition includes a step of mixing a zinc catalyst (A), an iso(thio)cyanate compound (B) having an iso(thio)cyanate group, and an alcohol compound (C) having a hydroxy group, and at least one of the iso(thio)cyanate compound (B) or the alcohol compound (C) has a (meth)acryloyl group.

Fibers, for example fiberglass fibers, are added to dental stone powders to provide for reinforced dental stones. Dental stones are made by combining dry components, including binder and fiber glass, adding water to the resulting mixture and setting the mixture in a dental mold. The dental stones are reinforced by the fibers, and allow for reduced breaking or chipping during handling.

Fibers, for example fiberglass fibers, are added to dental stone powders to provide for reinforced dental stones. Dental stones are made by combining dry components, including binder and fiber glass, adding water to the resulting mixture and setting the mixture in a dental mold. The dental stones are reinforced by the fibers, and allow for reduced breaking or chipping during handling.

A monomer composition, including: an acidic phosphoric acid ester (A); an amine-based catalyst (B); and a (meth)acrylate (E) having at least one of a urethane bond or a —NHC(═S)O— bond.

A monomer composition, including: an acidic phosphoric acid ester (A); an amine-based catalyst (B); and a (meth)acrylate (E) having at least one of a urethane bond or a —NHC(═S)O— bond.

Described herein is a dental composition containing a polymerizable compound having at least one optionally derivatized β-hydroxy urethane unit. The polymerizable compound having at least one optionally derivatized β-hydroxy urethane unit is obtained without use of organo-metal catalysts and isocyanates and by a reaction between an at least one component A having at least one cyclic carbonate group with an at least one component B having at least one of primary amine functional group and secondary amine functional group. The present disclosure relates to use of the polymerizable compound having at least one optionally derivatized β-hydroxy urethane unit for the preparation of a dental composition, in particular a dental composite, a glass ionomer, a dental cement, a dental sealant, and a dental adhesive.

Described herein is a dental composition containing a polymerizable compound having at least one optionally derivatized β-hydroxy urethane unit. The polymerizable compound having at least one optionally derivatized β-hydroxy urethane unit is obtained without use of organo-metal catalysts and isocyanates and by a reaction between an at least one component A having at least one cyclic carbonate group with an at least one component B having at least one of primary amine functional group and secondary amine functional group. The present disclosure relates to use of the polymerizable compound having at least one optionally derivatized β-hydroxy urethane unit for the preparation of a dental composition, in particular a dental composite, a glass ionomer, a dental cement, a dental sealant, and a dental adhesive.

In the case of a dental prosthesis comprising a gum-coloured prosthesis base and a tooth coloured tooth arrangement which is partially embedded into the prosthesis base, the dental prosthesis is formed as a hybrid prosthesis, wherein the prosthesis base has a contact surface which has a surface normal pointing towards the gums.

The tooth arrangement (14) surrounds an external telescope (secondary part) or an abutment on at least 2 sides (26, 28, 30), is formed as a one-piece tooth quadrant or as a segmented tooth quadrant (16) and consists of a harder material than the prosthesis base (12).