Qhov tshwj xeeb kev ua tau zoo ntawm titanium alloys
Titanium yog silvery-dawb, chemically ruaj khov, muaj zoo heev kub thiab tsis kub tsis kam, muaj zog acid thiab alkali corrosion kuj, thiab muaj ob qho tib si siab zog thiab tsis tshua muaj neeg kho tshuab yam ntxwv. Ntawm cov ntaub ntawv kho hniav, titanium thiab titanium alloys tau pom biocompatibility deb tshaj lwm cov ntaub ntawv hlau. Thaum muab tso rau hauv cov pob txha alveolar raws li kev cog qoob loo, nws tuaj yeem ua tiav zoo biomechanical adaptation thiab compatibility nrog cov pob txha cov ntaub so ntswg thiab physiological ib puag ncig, thiaj li muab kev txhawb nqa txhim khu kev qha thiab ntev -lub sij hawm ruaj khov rau lub sab sauv cov qauv, kom lub restoration yog ze rau lub ntuj dentition nyob rau hauv daim ntawv thiab muaj nuj nqi.
Tam sim no, feem ntau siv titanium alloy qib hauv kev kho hniav muaj xws li TC4 (Ti-6Al-4V), TC4ELI (ultra-low gap element qib), GR5 thiab GR23. Cov qib sib txawv muaj qhov sib txawv ntawm cov qauv tsim, cov khoom siv kho tshuab, thiab cov yam ntxwv ntawm kev ua haujlwm, uas tuaj yeem ua tau raws li qhov xav tau ntawm kev kho mob sib txawv, los ntawm kev cog hniav thiab hniav stents mus rau orthodontic archwires.
Daim ntawv thov ntawm titanium alloys hauv ntau ceg ntawm kev kho hniav
Orthodontics: High - cov ntaub ntawv zoo uas tswj cov hniav txav
Orthodontics feem ntau kho cov hniav deformities los ntawm kev siv cov khoom siv hluav taws xob tswj. Hauv cov khoom siv orthodontic, cov khoom siv tshem tawm feem ntau yog tsim los ntawm polymethyl methacrylate (PMMA) lub hauv paus kev txhawb nqa thiab cov khoom siv hlau. Ntxiv nrog rau cov hlau tsis huv, cov titanium ntshiab yog siv dav hauv kev tsim cov khoom ruaj khov thiab cov khoom siv ua haujlwm vim nws qhov ntom ntom thiab muaj zog corrosion kuj. hom titanium alloys (xws li Ti-Mo thiab Ti-Nb series) muaj cov khoom txias txias zoo thiab elastic modulus, thiab yooj yim los kos rau hauv cov xov hlau zoo, ua rau lawv tsim nyog rau kev ua kom siab -precision hneev xov hlau thiab cov khoom caij nplooj ntoos hlav. Tsis tas li ntawd, qhov txias txias - ua haujlwm qib 4 ntshiab titanium yog nyob ze rau qee cov alloys ntawm cov khoom siv kho tshuab, uas tuaj yeem siv los ua lwm yam khoom siv los muab kev xaiv ntau dua rau kev kho mob orthodontic.
Restoration: kev sib koom ua ke ntawm kev ua haujlwm thiab kev zoo nkauj
Prosthodontics tau mob siab rau rov kho daim ntawv thiab kev ua haujlwm ntawm cov hniav tsis zoo los ntawm kev kho kom zoo nkauj. Titanium thiab nws cov alloys tuaj yeem siv rau hauv daim teb no tsis yog rau kev tsim cov hauv paus hniav, txuas hniav, tab sis kuj yog cov substrates rau cov plooj (porcelain fused metal restorations) (PFMs). Kev kho hniav precision casting tshuab yog txheej txheem tseem ceeb hauv machining ntawm titanium restoration. Rau cov qauv loj uas yuav tsum tau cog rau hauv cov pob txha, cov khoom siv hluav taws xob ntawm cov cam khwb cia titanium zoo ib yam li cov txheej txheem intraosseous implants, uas tuaj yeem txo qhov kev pheej hmoo ntawm kev kho tsis ua haujlwm los ntawm galvanic corrosion thiab ua kom muaj kev ruaj ntseg ntawm lub sijhawm ntev - kev pabcuam ntawm kev kho dua tshiab.
Implantology: kev tsim kho dua tshiab nrog osseointegration ua cov tub ntxhais
Intraosseous implants tau dhau los ua ib txoj hauv kev los hloov cov hniav uas ploj lawm, tsim cov ncej ruaj ruaj, thiab ruaj khov kho cov hniav uas tshem tau ib nrab. Titanium thiab titanium alloys tau ntse siv los ua cov ntaub ntawv cog hniav rau ntau tshaj 50 xyoo. Txhawm rau txhawb osseointegration ntawm cov cog thiab cov pob txha, alumina sandblasting los yog titanium plasma spraying feem ntau yog siv los roughen lub implant nto kom nws cov cheeb tsam tshwj xeeb thiab osteoblast txuas muaj peev xwm, yog li kev txhim kho thawj zaug stability thiab ntev -lub sij hawm ciaj sia taus.
Clinical xaiv lub tswv yim rau ntshiab titanium thiab titanium alloy
Hauv kev siv tshuaj hauv qhov ncauj, titanium ntshiab (CP-Ti) yog siv dav hauv kev sib cuag nrog cov ntaub so ntswg vim nws cov biocompatibility zoo heev thiab cov khoom siv kho tshuab ruaj khov, tab sis nws cov khoom siv raw thiab cov nqi ua haujlwm siab. Titanium alloys (xws li Ti-6Al-4V) muaj lub zog ntau dua, hnav tsis kam, thiab qaug zog lub neej thaum tswj hwm biocompatibility zoo, thiab kuj muaj txiaj ntsig zoo dua ntawm tus nqi. Cov neeg mob yuav tsum xaiv qhov tsim nyog raws li kev qhia ntawm tus kws kho mob, suav nrog cov xwm txheej xws li cov hniav thauj khoom, lub voj voog kev xav tau rov qab, keeb kwm tsis haum, thiab kev lag luam.
Hauv - qhov tob thov ntawm titanium alloys hauv cov tshuaj kho hniav yog ib theem tshiab hauv kev tshawb fawb cov ntaub ntawv prosthodontic uas yog qhov tseeb dua thiab bio- tus phooj ywg. Nrog rau kev sib koom ua ke ntawm cov cuab yeej hloov kho saum npoo av, kev tsim khoom ntxiv, thiab cov qauv tsim digital, titanium alloys yuav txuas ntxiv tsav kev tsim kho tshiab hauv kev kho hniav daws teeb meem thiab muab cov neeg mob zoo dua thiab ntev dua - cov txiaj ntsig kho kom zoo dua qub.