Niobium hauv Oral Surgery

Cov khoom siv hlau biomaterials tau siv dav hauv kev phais mob craniomaxillofacial, thiab feem ntau yog siv los hloov cov pob txha deformities thiab qhov tsis xws luag nrog rau cov ntaub ntawv scaffolding los txhim kho lub neej zoo ntawm cov neeg mob, cov neeg sawv cev ntawm cov khoom siv hlau yog stainless hlau, cobalt-chromium alloys, titanium thiab titanium alloys. Ntawm cov khoom siv hlau no, cov hlau tsis muaj steel zoo dua ductility thiab cyclic torsional zog; cobalt-chromium alloys muaj qhov nruj tshaj plaws thiab hnav tsis kam, nrog rau lub zog siab; thiab titanium alloys muaj qhov zoo tshaj plaws biocompatibility, corrosion kuj, thiab lub zog tshwj xeeb (qhov sib piv ntawm lub zog tensile rau qhov ntom), tab sis qhov qis tshaj.

Ntxiv nrog rau cov khoom siv kho tshuab, vim tias qhov xav tau rau kev cog qoob loo ntev hauv tib neeg lub cev, qee qhov yuav tsum tau muab tshem tawm tom qab theem, cov cim kev lom neeg xws li biocompatibility thiab cytotoxicity ntawm cov hlau biomaterials tau txais kev saib xyuas los ntawm cov kws tshawb fawb. , thiab ntau qhov kev sim tau ua los txhim kho thiab txhim kho lawv. Txo cov modulus ntawm elasticity ntawm cov khoom siv hlau ua kom lawv nyob ze li sai tau rau cov pob txha cov ntaub so ntswg kom txo tau cov kev ntxhov siab-masking nyhuv yog ib qho ntawm cov lus qhia ntawm cov kws tshawb fawb tsis ntev los no. Cov kev tshawb fawb yav dhau los tau pom tias qhov sib ntxiv ntawm cov hlau tsis muaj tshuaj lom niobium, zirconium, tantalum thiab molybdenum rau titanium alloys yog qhov zoo hauv kev txo qis cov qauv ntawm elasticity ntawm cov alloys thiab txhim kho corrosion kuj. Txawm li cas los xij, cov ntaub ntawv ntawm kev siv niobium thiab nws cov alloys hauv kev phais craniomaxillofacial yog qhov tsawg.

Kondo et al. qhia tau tias Nb-2Zr alloys hauv simulated lub cev kua pom zoo corrosion kuj thiab qaug zog zog.Kanetaka li al. pom tau tias txhim khu kev qha biocompatibility ntawm lawv cov tshiab tsim Ti-Nb-Al nco alloy hauv drawdown osteogenesis thwmsim ntawm nas skulls.Vandrovcova li al. [ml ua osteoblast-zoo li cell S-hom kev ntsuam xyuas ntawm thermally oxidized titanium-niobium alloys. Vandrovcova et al[ml tsom xam cov kev ua ntawm tes ntawm osteoblast zoo li Saos-2 thiab MG-63 ntawm thermally oxidized titanium-niobium alloys thiab pom tias ob qho tib si ntshiab titanium thiab titanium-niobium alloys kho nrog thermal oxidation muaj Cov nyhuv ntawm kev ua kom cov cellular nce, tab sis cov nyhuv ntawm titanium-niobium alloys nyhav txhawb kev loj hlob ntawm osteoblasts, whereas ntshiab titanium nyhav induce lub cellular sib txawv.