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Technological innovation of Niobium-Titanium alloy in dental restoration

The application of niobium-titanium alloy in the dental field has broken through the limitations of traditional materials. Its low elastic modulus (50-60 GPa) makes the implant more in line with the mechanical environment of the alveolar bone and reduces bone resorption caused by stress concentration. For example, the bone-implant contact area of Ti-Nb-Zr alloy implants is 20% higher than that of pure titanium, and the initial stability is improved by 40%.

Surface modification technology gives it multiple functions:
• Antibacterial properties: Through ion implantation of silver or copper, Ag/ε-Cu-rich phases are formed on the surface of Ti-Nb alloy, and the inhibition rate of Porphyromonas gingivalis reaches 99%, effectively preventing peri-implantitis.
• Enhanced biological activity: Strontium calcium phosphate coatings prepared by micro-arc oxidation can promote the expression of osteogenesis-related genes (such as Runx2, OCN) and accelerate bone integration by 50%.
• Aesthetic restoration: The low magnetism of Ti-Nb alloy allows for postoperative MRI examinations, and through surface nanostructure regulation, it can achieve a transmittance close to that of natural teeth (transmittance > 80%).

Clinical data show that the 5-year survival rate of implants using Ti-Nb alloy is 98.7%, significantly higher than that of traditional titanium alloys (95.2%). In addition, its processability supports the manufacture of complex structures, such as personalized abutments and all-ceramic restoration frameworks, to meet patients' dual needs for function and aesthetics.