Niobiy restorativ stomatologiyada

The application of metal dental restorations in oral prosthetics has become very widespread and popular. Due to the complexity of the intraoral environment, it has been the focus of research to improve the mechanical and chemical properties, especially the corrosion resistance, to increase the durability of restorations under the premise of ensuring the good biocompatibility of the materials.Haoka et al. tested the electrochemical properties of niobium-containing magnetic attachments, and the results showed that compared with the traditional magnetic attachments, the magnetic attachments made of Pt-30.0mass%Fe-0.6mass%Nb alloys had better corrosion resistance.Lee et al. tested the electrochemical properties of titanium-niobium alloys. Lee et al. tested the structural properties of titanium-niobium alloys and showed that Ti-10Nb and Ti-27.5Nb alloys had the highest strength, while Ot' phase-dominated (17.5Nb, 20Nb) alloys and B-phase-dominated alloys (>30Nb) eng past elastiklik moduliga ega edi. . Bundan tashqari, sinovlarda ishtirok etgan barcha titanium-niobiy qotishmalari mukammal korroziyaga chidamliligini ko'rsatdi.

Kikuchi va boshqalar. niobiyning turli o'ziga xos og'irligini o'z ichiga olgan quyma titanium-niobiy qotishmalarining mexanik xususiyatlarini sinovdan o'tkazdi va natijalar og'irligi 5% niobiy o'z ichiga olgan titanium qotishmalarining qattiqligi sezilarli darajada yaxshilanganligini ko'rsatdi; og'irligi 10% niobiy va undan yuqori bo'lgan titanium qotishmalari sezilarli darajada yaxshilangan rentabellik va kuchlanish kuchlarini ko'rsatdi, cho'zilish esa sezilarli darajada kamaydi; Og'irligi 30% niobiy o'z ichiga olgan titanium qotishmalari yuqori qattiqlik, kuch va elastiklik modulini saqlab, yaxshi abraziv xususiyatlarni ko'rsatdi. Hu Xin va boshqalar tomonidan o'tkazilgan tadqiqot. shuningdek, yuqori quvvatli, elastiklik modulining yuqori moduli titanium-zirkonyum-niobiy-qalay qotishmasi og'izni tiklash uchun yaxshi bioxavfsizlikka ega bo'lgan metall material ekanligini tasdiqladi, ammo aşınma mexanizmi sirt yukining ortishi bilan abraziv aşınmadan yopishqoq aşınmaya o'zgaradi.