Abstract: Disclosed are a zirconia-based antibacterial denture material and a preparation method thereof. The zirconia-based antibacterial denture material includes components with the following mass parts: 75 to 80 parts of zirconium oxide, 2 to 5 parts of nanosized silver oxide, 3 to 5 parts of nanosized zinc oxide, 1 to 3 parts of nanosized lanthanum oxide, 1 to 3 parts of nanosized yttrium oxide, 1 to 2 parts of cerium oxide, and 1 to 2 parts of size control agent. The zirconia-based antibacterial denture material has good antibacterial effect and high strength.

Abstract: Disclosed are a glass ceramic material, a preparation method thereof, and a denture. The glass ceramic material includes the following components by mass percentage: 58% to 72% of SiO2, 0% to 4% of Al2O3, 0% to 5% of Na2O, 3% to 8% of K2O, 8% to 17% of Li2O, 2.5% to 5% of P2O5, 0% to 2% of MgO, 0% to 2.5% of B2O3, 0% to 5% of ZnO and 0% to 3% of ZrO2. In the present application, by optimizing the composition and ratio of the glass ceramic material, and combining with a matching process system, it is possible to control the formation of lithium disilicate while the crystallinity of lithium metasilicate glass ceramic can be improved without an introduction of a high ratio of zirconia content, thereby improving the grinding performance of the glass ceramic. The present application is applicable to the field of material technology.

Abstract: Disclosed are a glass ceramic composition, a preparation method and application thereof. The glass ceramic composition according to the present application includes: 58% to 72% of SiO2; 0% to 4% of Al2O3; 0% to 5% of Na2O; 3% to 8% of K2O; 8% to 17% of Li2O; 2.5% to 5% of P2O5, 0% to 2% of MgO, 0% to 2.5% of B2O3; 0% to 5% of ZnO; and 0% to 3% of ZrO2. It is possible to prepare such lithium metasilicate glass ceramic with a crystal phase of lithium metasilicate, a crystallinity of greater than 50%, a grain size of 30 nm to 60 nm and a hardness of 500 kgf/mm2 to 590 kgf/mm2. The composition does not require an introduction of a high proportion of zirconia content, and can be ground to a thickness of 0.2 mm without edge collapse.

Abstract: Disclosed are a multi-layer porcelain block, a preparation method thereof and a denture. The multi-layer porcelain block includes a first zirconia powder layer, a second zirconia powder layer, a third zirconia powder layer, a fourth zirconia powder layer, a fifth zirconia powder layer, a sixth zirconia powder layer, a seventh zirconia powder layer, and an eighth zirconia powder layer laid in sequence. The zirconia powers in the first to eighth zirconia powder layers are doped with yttria. The first zirconia powder layer accounts for 13% to 17% by mass, the second zirconia powder layer accounts for 8% to 12% by mass, the third zirconia powder layer accounts for 10% to 14% by mass, the fourth zirconia powder layer accounts for 10% to 14% by mass, the fifth zirconia powder layer accounts for 10% to 14% by mass, the sixth zirconia powder layer accounts for 10% to 14% by mass.

Abstract: Disclosed are a composite resin denture porcelain block, a preparation method thereof and a composite resin denture. The composite resin denture porcelain block includes 0.1% to 15% of carbamate dimethacrylate, 0.1% to 10% of bisphenol A-di glycidyl methacrylate, 3% to 20% of triethylene glycol dimethacrylate, 35% to 85% of glass powder, 0.1% to 8% of ZrO2, 3% to 15% of SiO2, 0.1% to 40% of ZrO2—SiO2 composite powder, 2% to 17% of diatomite, 0.01% to 3% of benzoyl peroxide, 0.01% to 3% of N,N dihydroxyethyl p-toluidine, 0.01% to 3% of 2,6 di-tert-butyl p-cresol, 0.001% to 0.2% of iron oxide red, 0.001% to 0.2% of iron oxide black, and 0.001% to 0.5% of iron oxide yellow. The composite resin denture porcelain block of the present application uses carbamate dimethacrylate, bisphenol A-di glycidyl methacrylate, and triethylene glycol dimethacrylate as the resin matrix.