Unified Framework for Equipping Dental Laboratories in Poor and Developing Countries with Minimal Investment and Maximum Compatibility with Global Advanced Digital Dentistry Standards

متن زیر را در این بخش کپی کنید: This invention introduces a cold-cast zirconia forming system that completely eliminates the need for high-cost zirconia milling machines and industrial CAD/CAM units (saving $50,000–$150,000 in equipment costs). The system uses a manually mixed zirconia paste and reusable 3D-printed polymer molds to produce high-quality dental restorations such as crowns, bridges, and implant frameworks. The method involves manual mixing, injection into polymer molds, drying, binder burnout at 250–600°C, and final sintering at 1350–1500°C. This invention significantly lowers the barrier for establishing dental laboratories in developing countries, reducing investment costs to under $15,000, and enables decentralized, chairside production. It addresses the global oral health crisis by making affordable zirconia restorations accessible to low-income populations, where the cost of a single tooth restoration often equals several days or weeks of wages.