Titanium alloy thiab zirconia kev cog hniav: Dab tsi yog qhov txawv?
Nyob rau hauv niaj hnub stomatology, kho hniav implants tau los ua ib tug dav siv txoj kev kho mob, tshwj xeeb tshaj yog rau kev kho cov hniav uas ploj lawm. Titanium alloy thiab zirconia yog ob qho khoom siv kho hniav feem ntau, txhua tus muaj cov yam ntxwv sib txawv thiab qhov zoo. Yog li, dab tsi yog qhov txawv ntawm titanium alloy thiab zirconia hniav cog? Kab lus no yuav txheeb xyuas qhov zoo thiab qhov tsis zoo ntawm ob cov ntaub ntawv kom ntxaws los pab koj nkag siab zoo dua lawv daim ntawv thov hauv kev cog hniav.
1. Cov yam ntxwv ntawm titanium alloy hniav cog hniav
Titanium alloy yog ib qho ntawm cov khoom siv dav tshaj plaws hauv kev cog hniav. Vim nws cov biocompatibility zoo heev, lub zog thiab corrosion kuj, nws tau dhau los ua cov khoom siv rau kev cog hniav. Titanium alloy hniav implants tsis tau tsuas yog integrate zoo nrog cov pob txha cov ntaub so ntswg (piv txwv li, osseointegration), tab sis kuj muaj cov neeg kho tshuab muaj zog thiab tsawg ntom, ua rau lawv ruaj khov thaum lub sij hawm implantation txheej txheem.
Qhov saum npoo ntawm titanium alloy feem ntau yog kho tshwj xeeb (xws li sandblasting, acid etching, thiab lwm yam) txhawm rau ua kom lub zog sib txuas nrog cov pob txha. Qhov zoo toughness thiab compressive tsis kam ntawm cov khoom no ua rau nws tuaj yeem tiv taus lub zog txhua hnub hauv lub qhov ncauj thiab tsis yooj yim tawg lossis deform tom qab siv mus ntev.
Txawm li cas los xij, titanium alloy kuj muaj qee qhov kev txwv. Piv txwv li, cov xim ntawm titanium alloy yog silvery dawb, uas tej zaum yuav tsis phim cov xim ntawm cov hniav, tshwj xeeb tshaj yog nyob rau hauv lub anterior cheeb tsam. Tsis tas li ntawd, cov khoom siv hlau ntawm titanium alloy tej zaum yuav ua rau muaj kev tsis haum rau qee tus neeg mob.
2. Cov yam ntxwv ntawm zirconia hniav cog hniav
Zirconium oxide, raws li cov khoom siv ceramic, tau maj mam siv rau hauv kev cog hniav hauv xyoo tas los. Qhov zoo tshaj plaws ntawm zirconia kho hniav cog yog nws cov txiaj ntsig zoo nkauj zoo nkauj. Nws cov xim yog nyob ze rau tej yam ntuj tso cov hniav thiab nws tsis tshwm li xim hlau li titanium alloys, yog li nws yog tshwj xeeb tshaj yog nrov nyob rau hauv anterior hniav implants. Tsis tas li ntawd, zirconia muaj biocompatibility zoo heev thiab yuav luag tsis muaj kev tsis haum tshuaj, uas yog tsim rau cov neeg mob uas tsis haum rau cov hlau.
Zirconia cov ntaub ntawv muaj lub zog siab thiab hardness, tab sis lawv cov brittleness kuj siab thiab tej zaum yuav tsis haum rau kev coj tus cwj pwm ntau dhau. Txhawm rau txhim kho nws cov compressive tsis kam, zirconia kev cog hniav feem ntau yog kho tshwj xeeb, tab sis lawv tseem tsis tau piv rau titanium alloys ntawm cov kabmob muaj peev xwm. Zirconia hniav cog tej zaum yuav muaj teeb meem xws li microcracks thaum siv mus sij hawm ntev, yog li tshwj xeeb yuav tsum tau them nyiaj mloog mus rau lawv cov installation txoj hauj lwm thiab quab yuam kev taw qhia.
3. Qhov txawv ntawm titanium alloy thiab zirconia hniav cog
1) Biocompatibility:
Ob leeg titanium alloy thiab zirconia muaj biocompatibility zoo heev, tab sis zirconia cov ntaub ntawv muaj zog biocompatibility. Zirconia tsis hnov mob nrog lwm yam tshuaj hauv lub qhov ncauj thiab yuav luag tsis muaj kev pheej hmoo ntawm kev ua xua, thaum titanium alloys yuav ua rau cov hlau tsis haum, tshwj xeeb tshaj yog rau qee cov neeg mob uas tsis haum rau titanium lossis lwm yam hlau hauv cov hlau.
2) Aesthetic nyhuv:
Nyob rau hauv cov nqe lus ntawm aesthetic nyhuv, zirconia yog ho zoo dua titanium alloy. Cov xim ntawm zirconia yog nyob ze rau tej yam ntuj tso hniav, yog li nws yog ntau ntuj nyob rau hauv anterior hniav implants, thaum lub metallic luster ntawm titanium alloys tej zaum yuav tsis ua hauj lwm nrog cov hniav nyob ib ncig ntawm, tshwj xeeb tshaj yog nyob rau hauv lub anterior hniav cheeb tsam ntawm lub sab sauv thiab sab puab tsaig. .
3) Durability thiab lub zog:
Titanium alloys ua tau zoo dua nyob rau hauv lub zog thiab durability. Titanium alloy hniav cog hniav tuaj yeem tiv taus cov zom zom ntau dua thiab tsim nyog rau thaj chaw uas muaj zog ntau dua xws li cov hniav tom qab. Nyob rau hauv sib piv, zirconia muaj ib tug ntau dua hardness, tab sis kuj yog ib tug kuj tsis yooj yim sua thiab nws yuav ua rau cov kab nrib pleb thaum raug siab heev, yog li tshwj xeeb yuav tsum tau them nyiaj mloog thaum siv nws.
4) Cov lus qhia:
Titanium alloy hniav cog yog tsim rau cov neeg mob feem ntau, tshwj xeeb tshaj yog rau cov hniav tom qab thiab cov cheeb tsam uas yuav tsum tau muaj peev xwm load-bearing ntau dua. Zirconia yog qhov tsim nyog rau kev cog hniav anterior, tshwj xeeb tshaj yog thaum xav tau kev zoo nkauj, thiab tuaj yeem muab qhov zoo nkauj dua.
5) Khoom siv:
Zirconium oxide hniav cog hniav kuj tseem kim los tsim, yog li lawv feem ntau kim dua titanium alloy implants. Nyob rau hauv rooj plaub ntawm kev siv nyiaj tsawg, titanium alloy tej zaum yuav yog qhov kev xaiv pheej yig dua.
Titanium alloy thiab zirconia kev cog hniav txhua tus muaj lawv tus kheej qhov zoo thiab qhov tsis zoo thiab tsim nyog rau kev kho mob sib txawv. Titanium alloy tseem yog cov khoom siv ntau tshaj plaws rau kev cog hniav vim nws lub zog thiab ruaj khov, thiab tshwj xeeb tshaj yog haum rau kev cog hniav tom qab. Zirconia yog qhov kev xaiv zoo tshaj plaws rau kev cog hniav anterior vim nws cov txiaj ntsig zoo nkauj zoo nkauj. Cov neeg mob tuaj yeem xaiv cov khoom siv cog hniav uas haum rau lawv raws li lawv tus kheej xav tau, pob nyiaj siv thiab cov kws kho mob cov lus qhia.
