The present invention relates to dental cement composition that is more biocompatible and stimulates quicker healing of the damaged dental tissues. Specifically, the invention relates to dental cement composition comprising a combination of dental repair compounds consisting of nanoparticles of Tri-calcium Silicate (Ca3SiO5), Di-calcium Silicate (Ca2SiO4), Calcium Titanate (CaTiO3) and Hydroxyapatite (Ca10(PO4)6(OH)2).

A method for post-processing a colored zirconium oxide ceramic, the method comprising: putting the colored zirconium oxide ceramic along with a deoxidant into a heating device, conducting a firing process at a preset temperature, and a colorant containing Pr.sup.3+ is used for the coloring, and the deoxidant is excessive with respect to a stoichiometric amount of oxygen in the heating device. The technical solution can completely replace Fe.sup.3+ with Pr.sup.3+ to color the zirconium oxide ceramic yellow.

The present disclosure discloses a ceramic material having a positive slow release effect and a method for manufacturing the same. The ceramic material comprises a hierarchically meso-macroporous structure which composition at least includes silicon and oxygen, wherein the hierarchically meso-macroporous structure includes a plurality of macropores and a wall having a plurality of arranged mesopores, and the plurality of macropores are separated by the wall; and nano-scale metal particles confined in at least one of the plurality of arranged mesopores. The nano-scale metal particles have a positive slow release effect from the at least one of the plurality of arranged mesopores. The ceramic material has a property of inhibiting growth of microorganisms or killing the microorganisms in an environment or a system containing a hydrophilic medium.

A system, method and kit for coloring dental ceramics. The system, method, and kit resulting capable of adjusting the shade of a dental restoration milled from a colored zirconia porcelain block from one color value of the VITA shade guide to a different color value of the VITA shade guide.

A dental post made from a zirconia compound, wherein said zirconia compound is at least one of a pure zirconia puck, a zirconia stabilized with yttria (yttrium oxide) compound, a cubic zirconia compound, a Partially Stabilized Zirconia (PSZ) compound, a Tetragonal Zirconia Polycrystal (TZP) compound and a Zirconium based bulk metallic glass (BMG).

A manufacturing method is a method of manufacturing a composite material molded article containing acicular hydroxyapatite. This manufacturing method comprises: a preparation step of mixing at least a calcium phosphate compound including -tricalcium phosphate, a calcium compound containing no phosphorus, cellulose nanofibers, and an aqueous solvent consisting of water and/or a hydrophilic solvent to obtain a mixture; a molding step of forming a molded article by using the mixture; a drying step of drying the molded article; and a synthesis step of performing synthesis treatment of the molded article after drying.

To provide a liquid material which can only adjust transparency by applying on a part of a zirconia crown having high transparency, without coloring.

The present disclosure provides an opaque imparting liquid used for a prosthesis device cut and machined from a dental zirconia for cutting and machining, comprising; (a) 10 to 39 wt. % of a water-soluble aluminum compound and/or a water-soluble lanthanum compound, (b) 60 to 89 wt. % of water, and (c) 1 to 20 wt. % of an organic solvent.

Disclosed are compositions and methods for bleaching and optionally coloring a shaded zirconia, particularly mono-chromatic pre-shaded dental zirconia. The compositions and methods are useful in generating a shade gradient in milled dental restorations. The compositions comprise metal salts or complex dissolved in a solvent.

The present invention provides curable calcium phosphate dental cement that has excellent sealability for dentinal tubule, is expected to form fluoroapatite, and has a curing time that is advantageous for clinical use. The present invention is directed to curable calcium phosphate dental cement including: a first material as powder or nonaqueous paste; and a second material as liquid or aqueous paste, and, in the curable calcium phosphate dental cement, the first material comprises tetracalcium phosphate (A), alkali metal salt of phosphoric acid (B), and acidic calcium phosphate (C), the second material comprises water (D), and at least one of the first material and the second material comprises a fluorine compound (E) and an organic acid (F) having a molecular weight of 10000 or less.

A method for enhancing mechanical properties of sintered, zirconia ceramic bodies and zirconia ceramic dental restorations is provided. A porous or pre-sintered stage of a ceramic body may be treated with a tantalum-containing composition prior to sintering. Alternatively, zirconia ceramic powder may be coated with a tantalum-containing composition prior to forming a shaped ceramic body. After sintering, the resulting ceramic bodies have enhanced mechanical properties, such as greater fracture toughness, without a significant decrease in optical properties.