A glass-ceramic dental body is provided including three consecutive sections: a section A, a section B, and a section C, wherein each one of the sections has a chemical composition that differs from a chemical composition of the other sections. The glass ceramic-dental body may be characterized by a gradient of a mechanical property, an optical property, and/or a thermal property in a direction from section C to section A. Furthermore, a process is provided for preparing a glass-ceramic dental body and a use of a glass-ceramic dental body.

A glass-ceramic dental body is provided including three consecutive sections: a section A, a section B, and a section C, wherein each one of the sections has a chemical composition that differs from a chemical composition of the other sections. The glass ceramic-dental body may be characterized by a gradient of a mechanical property, an optical property, and/or a thermal property in a direction from section C to section A. Furthermore, a process is provided for preparing a glass-ceramic dental body and a use of a glass-ceramic dental body.

The present invention provides a dental glass composition that exhibits excellent fixability to dental prostheses, and does not require fixation firing, in addition to reducing notable bubble formation and interface delamination at the interface between the base material and dental porcelain without fixation firing, enabling the build-up and firing of dental porcelain on the dental glass composition. The present invention relates to a dental glass composition comprising a glass powder (A) and a binder, wherein the binder comprises a hydrophilic organic compound (B) that is solid at 25 C., and the dental glass composition is essentially free of water and propylene glycol.

The present invention provides a dental glass composition that exhibits excellent fixability to dental prostheses, and does not require fixation firing, in addition to reducing notable bubble formation and interface delamination at the interface between the base material and dental porcelain without fixation firing, enabling the build-up and firing of dental porcelain on the dental glass composition. The present invention relates to a dental glass composition comprising a glass powder (A) and a binder, wherein the binder comprises a hydrophilic organic compound (B) that is solid at 25 C., and the dental glass composition is essentially free of water and propylene glycol.

To provide a dental resin-reinforced glass ionomer cement composition that exhibits little stringiness of kneaded material, becomes soon after completion of kneading in a state that it is possible to perform shaping operation, is excellent in cavity filling property and is excellent in application property to a dental prosthesis device, and also exhibits excellent kneadability and mechanical characteristic.

To provide a dental resin-reinforced glass ionomer cement composition comprising, (a) acid-reactive glass powder, (b) polyalkenoic acid, (c) water, (d) polymerizable monomer, (e1) organic-inorganic composite filler and/or (e2) porous organic filler: 1% by mass or more and 30% by mass or less, and (f) polymerization initiator.

To provide a dental resin-reinforced glass ionomer cement composition that exhibits little stringiness of kneaded material, becomes soon after completion of kneading in a state that it is possible to perform shaping operation, is excellent in cavity filling property and is excellent in application property to a dental prosthesis device, and also exhibits excellent kneadability and mechanical characteristic.

To provide a dental resin-reinforced glass ionomer cement composition comprising, (a) acid-reactive glass powder, (b) polyalkenoic acid, (c) water, (d) polymerizable monomer, (e1) organic-inorganic composite filler and/or (e2) porous organic filler: 1% by mass or more and 30% by mass or less, and (f) polymerization initiator.

The invention relates to a dental material comprising a polymer resin, particulate fillers and randomly oriented inorganic fibres, wherein an average largest dimension of the particulate fillers is 0.3-1.2 m, the inorganic fibres have a diameter of 4-8 micrometre and an aspect ratio of 20-80 based on an average length of the inorganic fibres and the dental material is void of other fibres. Additionally, the total amount of particulate fillers and inorganic fibres is 70-85 wt-% of the total weight of the material, and the amount of inorganic fibres is 20-35 wt-% of the total amount of particulate fillers and inorganic fibres.

The invention relates to a dental material comprising a polymer resin, particulate fillers and randomly oriented inorganic fibres, wherein an average largest dimension of the particulate fillers is 0.3-1.2 m, the inorganic fibres have a diameter of 4-8 micrometre and an aspect ratio of 20-80 based on an average length of the inorganic fibres and the dental material is void of other fibres. Additionally, the total amount of particulate fillers and inorganic fibres is 70-85 wt-% of the total weight of the material, and the amount of inorganic fibres is 20-35 wt-% of the total amount of particulate fillers and inorganic fibres.

One aspect of the invention includes a glass powder for a chemical polymerization initiator, the glass powder including aluminum, silicon, and at least one of copper or vanadium.

One aspect of the invention includes a glass powder for a chemical polymerization initiator, the glass powder including aluminum, silicon, and at least one of copper or vanadium.