Titanium Thiab Titanium Alloy Materials nyob rau hauv Dental Implant Applications - Xov xwm

1. Ntshiab titanium

Txij li thaum Branemark tau tshaj tawm txoj kev xav ntawm osseointegration,ntshiab titanium thiab titanium alloys(tsuas yog Ti-6Al-4V) yog cov khoom siv rau kev cog hniav. Cov kev tshawb fawb tau pom tias cov titanium ntshiab muaj cov biocompatibility zoo thiab corrosion kuj, nrog rau cov khoom siv zoo heev, nrog rau cov hardness, tensile zog, yield zog, thiab qaug zog, uas tuaj yeem ua tau raws li cov kev cai ntawm kev cog hniav. Nws tau siv dav hauv kev kho mob raws li cov khoom cog thiab tau ua tiav cov txiaj ntsig zoo.

Txawm li cas los xij, titanium cov xim tsaus tso cai rau nws pom los ntawm cov mucosa nyias ntawm qhov chaw cog qoob loo, uas muaj feem cuam tshuam rau kev zoo nkauj rau cov neeg mob nyias nyias. Titanium's elastic modulus yog siab dua li ntawm tib neeg cov pob txha, ntawm 110 GPa piv rau 20-30 GPa, uas tuaj yeem ua rau pob txha resorption vim muaj kev ntxhov siab tiv thaiv. Nrog rau kev siv tshuaj kho mob ntau ntxiv, cov kev tshawb fawb tsis ntev los no tau pom tias kev cog cov titanium ntshiab muaj kev pheej hmoo ntawm peri-implantitis, tso titanium ions uas yuav ua rau gingivitis thiab periodontitis. Tsis tas li ntawd, titanium tej zaum yuav immunogenic, ua raws li ib tug allergen thiab ua rau hom IV hypersensitivity tshwm sim rau hlau implants nyob rau hauv ib co allergy neeg. Yog li ntawd, cov kws tshawb fawb hauv tebchaws thiab thoob ntiaj teb tau mob siab rau tshawb nrhiav thiab tshawb nrhiav cov ntaub ntawv cog hniav nrog kev ua tau zoo tshaj plaws hauv txhua yam, muab txoj hauv kev siv tau rau cov ntshiab titanium.

2. Titanium alloy

Ua raws li kev siv tshuaj kho mob thoob plaws hauv kev cog cov titanium ntshiab, titanium alloy hniav cog cov ntaub ntawv kuj tau maj mam tsim. Piv rau cov ntshiab titanium, qhov sib ntxiv ntawm cov ntsiab lus alloying tuaj yeem txhim kho cov khoom siv corrosion, machinability, thiab txo nws cov elastic modulus. Qhov no muaj txiaj ntsig tshwj xeeb rau kev nqaim- txoj kab uas hla, txo qhov kev pheej hmoo ntawm pob txha. Ti-6Al{12}}4V alloy yog ib qho kev siv titanium alloy hauv kev kho mob. Txawm li cas los xij, cov kev tshawb fawb tsis ntev los no tau pom tias Ti-6Al-4V alloy tso tawm cov kab ntawm vanadium thiab txhuas ions, ob qho tib si tuaj yeem ua rau tib neeg lub cev, uas ua rau Alzheimer's kab mob, peripheral neuropathy, thiab rickets. Yog li, cov kws tshawb fawb tau pib tsom mus rau lawv cov kev tshawb fawb txog kev tsim cov titanium alloys uas tsis muaj tshuaj lom . - hom titanium alloying cov ntsiab lus xws li Nb, Zr, Ga, Mo, Pd, Se, Sn, Ta, thiab Ge yog suav tias yog kev nyab xeeb thiab tsis muaj tshuaj lom alloying ntsiab lus. Yog li ntawd, nyob rau hauv kev tshawb nrhiav rau cov khoom cog zoo tshaj plaws, titanium alloying tau dhau los ua ib qho kev tshawb fawb hotspots hauv daim teb no.

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