Cov Kev Zoo ntawm Zirconium Alloy thiab Hlau-Dawb Zirconia Kev Hniav Ntseeg
Sep 27, 2018| 
Titanium: Biocompatibility los yog Biointegration xwb?
Titanium los ua ib qho hlau siv hauv kev cog hniav vim tias nws tau qhia txog qhov peev xwm ua kom tau ncaj qha rau tus pob txha. Qhov kev lag luam tseem ceeb no, hu ua osseointegration, yog dab tsi underlies tag nrho cov kev kho hniav implantology.
Txawm li cas los xij, nws yog ib qho yuam kev xav tias vim lub cev tsim pob txha ncig ntawm kev cog hniav, titanium yog qhov ua tau tiag tiag. Yog hais tias nws yog biocompatible tiag tiag, gum daim ntaub yuav teb zoo li titanium li cov pob txha tsis, tab sis nws tsis - txais cov nqaij mos ntawm cov pos hniav loj hlob tuaj thiab puag ncig titanium implants yuav yog ib qho kev sib tw.
Thiab ces muaj qhov teeb meem ntawm titanium kev ua xua. Cov kev tshawb fawb tau pom tias muaj txog 0.6% ntawm cov neeg muaj kev fab tshuaj tiv thaiv titanium. Titanium ua xua yuav ua rau cov tsos mob zoo li ua npaws (xws li muaj kev tsis haum tshuaj) thiab tej zaum yuav ua rau cov hniav tsis tuaj yeem kuaj tsis tau. Qhov tseeb, ntau tshaj ib nrab ntawm cov neeg uas muaj cov tshuaj tiv thaiv titanium tau ntsib ib qho kev kho hniav tsis paub tseeb.
Nws yuav ua rau lwm tus neeg tuaj yeem muaj cov tshuaj tiv thaiv me dua rau cov titanium, nrog rau cov tsos mob tsawg dua los sis cov teebmeem kev kho hniav uas muaj peev xwm ua rau lwm qhov chaw.
Peb xav kom tsis txhob muaj cov kev pheej hmoo no los ntawm kev tiv thaiv kev kho hniav titanium rau tag nrho.
Lwm Yam Kev Zoo
Txhawm rau txhim kho cov kab mob ntawm kev kho hniav, peb siv zirconium alloy thiab hlau tsis pub dawb zirconia ceramic implants.
Zirconium alloy hniav cog hniav muaj 15% zirconium thiab 85% titanium. Lawv 'awm yeej muaj zog dua titanium hniav implants. Thiab lawv nyob nraum ntau dua biocompatible.
Thaum ib qho kev cog hniav raug muab tso rau hauv koj lub puab tsaig, koj lub cev yuav teb los kho koj tus pob txha, tab sis tsis yog txhua yam lus teb tib yam. Yog tias koj lub cev xav tias kev cog hniav yog ib qho kev txaus ntshai, nws yuav ua rau lub cev tsis muaj zog tiv thaiv kev sib ntaus. (Faj seeb: qhov no yog qhov fab dab tsi yog: koj lub cev qhov kev tiv thaiv kab mob tiv thaiv tsis tau cov khoom uas nws ua rau kev hem thawj.)
Zirconia tso cai rau peb muab kev kho hniav tawm yam tsis muaj hlau los xij. Xwb, cov kev kho hniav siab uas dhau los no yog tsim los ntawm ceramic. Nws yog tib hom ntawm ceramic uas yog pom zoo rau ntau lub khov kho hniav yas, thiab nws yeej muaj zog dua titanium. Zirconia muaj ib lub siab heev biocompatibility. Cov neeg uas xav kom tsis txhob muaj hlau yuav siv tau zirconia rau lawv cov kev kho hniav.
Lwm cov txiaj ntsig ntawm Zirconia Tso npe
Vim tias lawv tsis muaj tag nrho cov hlau, zirconia implants kuj muaj kev pab ntxiv.
Zoo tsos zoo: vim zirconia kev pom zoo dawb, tsis muaj nyiaj xws li kev ntseeg cog hniav, zirconia implants tuaj yeem muab rau koj pom ntau dua yog tias koj muaj pos hniav - yuav tsis muaj gray uas qhia los ntawm muab koj cov kev kho hniav tawm.
Galvanic Circuits: Thaum twg koj muaj ob lub cev sib txawv hauv koj lub qhov ncauj ib zaug, ob co hlau yuav tsim qhov hluav taws xob hluav taws xob uas yog bridged los ntawm cov ions hauv koj cov qaub ncaug. Nws yog tib qho kev yooj yim qab qab roj teeb. Cov hluav taws xob fais fab no yuav tsis xis nyob thiab cuam tshuam ntawm koj lub cev.