To provide a phosphate-based dental investment material which can used for metal and press ceramic and especially can impart the lubricity to the surface of a press ceramic, and a phosphate-based dental investment material which can be subjected to a flash heating for press ceramic, can obtain sufficient the hardening expansion, and can easily remove the investment material after press molding. A phosphate-based dental investment material of the present disclosure comprising a powder material and a liquid material, wherein the powder material contains (a) magnesium oxide: 5 to 20 wt. %; (b) ammonium dihydrogenphosphate: 8 to 25 wt. % and the liquid material contains (c) aqueous solution including a cation-treated colloidal silica.

A method for repairing dentition, including milling beta tricalcium phosphate with sufficiently high energy to substantially distressed its lattice structure, mechanochemically chelating an edible acid thereto to yield functionalized calcium phosphate moieties, and incorporating the functionalized calcium phosphate moieties into an edible material to yield a calcium phosphate delivery system. The calcium phosphate delivery system is introduced into an oral environment and dentition is repaired. The functionalized calcium phosphate moiety is characterized by weakly bonded fumaric acid at least partially wrapped around distressed calcium phosphate particles, and dentition repair occurs at a dentition depth of at least 10 microns below the surface.

A method for repairing dentition, including milling beta tricalcium phosphate with sufficiently high energy to substantially distressed its lattice structure, mechanochemically chelating an edible acid thereto to yield functionalized calcium phosphate moieties, and incorporating the functionalized calcium phosphate moieties into an edible material to yield a calcium phosphate delivery system. The calcium phosphate delivery system is introduced into an oral environment and dentition is repaired. The functionalized calcium phosphate moiety is characterized by weakly bonded fumaric acid at least partially wrapped around distressed calcium phosphate particles, and dentition repair occurs at a dentition depth of at least 10 microns below the surface.

A cosmetic and/or therapeutic treatment of tissue, such as tooth, is disclosed that effects, for instance, whitening and tissue re-building through mineralisation. Further, a method of performing iontophoresis utilizing an aqueous composition of a remineralising agent to achieve mineralisation is disclosed, as well as a kit for performing the mineralization or re-mineralization.

A cosmetic and/or therapeutic treatment of tissue, such as tooth, is disclosed that effects, for instance, whitening and tissue re-building through mineralisation. Further, a method of performing iontophoresis utilizing an aqueous composition of a remineralising agent to achieve mineralisation is disclosed, as well as a kit for performing the mineralization or re-mineralisation.

Disclosed are cement products, methods of forming cement using the cement product, and methods of using the cement product in orthopedic and dental applications. Generally, the disclosed cement product includes a first component and a second component. The first component comprises a polymerizable resin comprising ethylenic unsaturated double bond, a suitable glycidyl group and/or a suitable isocyanate group. The second component includes a compound comprising more than one type of amine selected from the group consisting of primary amine, secondary amines, tertiary amines and quaternary amines. Alternatively, the second component includes a compound comprising a suitable mercapto (SH) group, a hindered amine or a dimethylthiotoluenediamine (DMTDA). Optionally, the cement product includes a filler and/or a bioactive component to promote bone formation.

A cosmetic and/or therapeutic treatment of tissue, such as tooth, is disclosed that effects, for instance, whitening and tissue re-building through mineralization. Further, a method of performing iontophoresis utilizing an aqueous composition of a remineralizing agent to achieve mineralization is disclosed, as well as a kit for performing the mineralization or remineralization.

Described is a stable, two-component low viscosity composite that is capable to achieve excellent adaptation to walls/substrates due to its intrinsic flow ability and is also capable of rapid viscosity increasing and being manipulated prior to cure by light upon mixing of such a two-paste composite due to one distinguished reaction promoting partial network formation thus to allow a practitioner further manipulate a firm composite. Upon a completed manipulation by the practitioner, such a mixed material should be readily cured into final solid form by using conventional curing light.

In order to provide a film-forming powder using hydroxyapatite which is a main component of teeth, or hydroxyapatite in which a color tone adjuster is blended, the powder being used in a jet-device for forming a film on a surface of a tooth by spraying the powder on the tooth, and being suitable for forming a film having a high hardness and extremely low solubility in acid in a short period of time, and suitable for forming a film of a powder conforming to the color tone of a tooth in a short period of time; a hydroxyapatite powder calcined in an inert gas atmosphere at 600 to 1350? C., a powder obtained by applying to the hydroxyapatite powder calcined at 600 to 1350? C. plasma irradiation, or plasma irradiation and mechanical energy, and additionally a film-forming powders obtained by blending color tone adjusters into these hydroxyapatite powders are produced.

In order to provide a film-forming powder using hydroxyapatite which is a main component of teeth, or hydroxyapatite in which a color tone adjuster is blended, the powder being used in a jet-device for forming a film on a surface of a tooth by spraying the powder on the tooth, and being suitable for forming a film having a high hardness and extremely low solubility in acid in a short period of time, and suitable for forming a film of a powder conforming to the color tone of a tooth in a short period of time; a hydroxyapatite powder calcined in an inert gas atmosphere at 600 to 1350? C., a powder obtained by applying to the hydroxyapatite powder calcined at 600 to 1350? C. plasma irradiation, or plasma irradiation and mechanical energy, and additionally a film-forming powders obtained by blending color tone adjusters into these hydroxyapatite powders are produced.