SINTX Technologies is a small advanced ceramics manufacturer that develops and produces silicon nitride (Si₃N₄) products, primarily for medical device applications. Silicon nitride is a ceramic material that SINTX argues offers superior properties for medical implants compared to alternatives like PEEK polymers, metal alloys, and traditional ceramics — particularly for bone integration and antibacterial resistance. SINTX claims to be the only FDA-registered silicon nitride medical device manufacturer in the world. The company operates a ~19,000 sq ft manufacturing facility in Salt Lake City, Utah, with 32 employees. SINTX's primary revenue source is a manufacturing agreement with CTL Amedica, under which SINTX produces spinal fusion implants that CTL markets and sells — a relationship that has existed since CTL acquired SINTX's spine implant business in 2018. SINTX recently received FDA 510(k) clearance for a foot and ankle osteotomy wedge system under its own brand. The company produces silicon nitride in several forms: monolithic solid components for load-bearing implants, porous scaffolds for bone ingrowth, powder for coatings and composites, and PEEK/PEKK composites for 3D-printed implants. SINTX sells to hospitals and surgical centers directly and through manufacturing partnerships. The company is investing in R&D for new orthopedic indications, AI-designed custom implants, antipathogenic applications, and agricultural uses of silicon nitride powder, partially funded by NIH grants, though none of these initiatives generate meaningful revenue yet.