Thaum nws los kho cov hniav puas lawm, zirconia crowns yog cov kev xaiv saum toj kawg nkaus rau cov kws kho hniav thoob plaws ntiaj teb. Qhov no yog vim lub lifelike aesthetics thiab durability ntawm zirconia. Txij li qhov no yog cov khoom siv tshiab, ntau tus neeg mob xav paub txog qhov muaj pes tsawg leeg thiab kev siv cov zirconia crowns. Kab lus no piav qhia txhua yam koj yuav tsum paub txog zirconia raws li cov khoom siv los ua cov hniav nyiaj hniav kub nrog rau nws qhov zoo thiab qhov tsis zoo.
ZIRCONIA yog dab tsi?
Zirconia yog hmoov dawb hlau oxide ntawm zirconium, uas belongs rau tsev neeg titanium. Yog li ntawd, zirconia muaj cov khoom zoo ib yam li cov titanium alloys. Ib yam li feem ntau lwm cov ntaub ntawv yas, zirconia kuj yog cov khoom siv ceramic. Txawm li cas los xij, zirconia crowns tuaj yeem nyiam dua lwm hom ceramics siv rau hauv lub qhov ncauj kab noj hniav vim lawv cov kav ntev, tshuaj inertness thiab kev nyab xeeb.
Dab tsi yog qhov txiaj ntsig ntawm ZIRCONIA CROWNS?
Raws li tau tham ua ntej, zirconia-raws li cov yas yas muaj ntau qhov zoo ntawm cov hlau-ceramic tam sim no lossis tag nrho-ceramic raws li cov ntaub ntawv yas, uas ua rau lawv yog ib qho kev xaiv zoo tshaj plaws rau kev kho hniav hniav:
1. AESTHETICS
Cov khoom siv feem ntau siv rau cov yas yog cov hlau-ceramic crowns, uas feem ntau muaj cov xim grey tsaus nti, los yog nyob rau hauv cov xwm txheej uas xav tau lub zog siab, lub yas tuaj yeem yog xim hlau pom. Zirconia, ua ib txwm dawb, muab lub ntuj thiab zoo nkauj zoo nkauj rau lub crowns thiab lwm yam prostheses npaj los ntawm nws. Qhov no yog vim li cas zirconia crowns yog cov khoom xaiv ntawm cov kws kho hniav thiab cov neeg mob thaum muaj kev zoo nkauj thiab lub zog zoo dua, tshwj xeeb tshaj yog thaum kho cov hniav tom qab. Vim cov yam ntxwv no, cov hniav rov qab nrog zirconia crowns zoo li indistinguishable los ntawm cov hniav ntuj.
2. MILLED ZIRCONIA CROWNS
Tej zaum, qhov zoo tshaj plaws ntawm zirconia crowns yog tias lawv tuaj yeem npaj siv 3D luam ntawv thiab milling thev naus laus zis, uas muaj ntau yam txiaj ntsig ntawm cov hniav hniav uas tau npaj ua raws li hauv chav kuaj hniav:
Ib Hnub Crowns - nrog 3D luam ntawv thiab milling thev naus laus zis, zoo nkauj heev thiab ruaj khov zirconia crowns tuaj yeem npaj ntawm lub rooj zaum kho hniav, thiab tib hnub ntawd. Yog li, koj tsis tas yuav tos rau hnub los yog lub lis piam kom tau txais koj cov hniav zoo li nyob rau hauv cov ntaub ntawv ntawm conventionally npaj crowns.
Precision - nrog 3D luam ntawv thev naus laus zis, digital impressions ntawm cov hniav npaj tau ua. Tom qab ntawd, cov kev xav no tau muab tso rau hauv ib qho software tsim los tsim digitally tsim cov yas. Thaum kawg, cov yas yog milled siv CAD-CAM thev naus laus zis. Raws li qhov tshwm sim ntawm cov thev naus laus zis thev naus laus zis no, qhov muaj feem cuam tshuam ntawm kev ua yuam kev thiab tsis zoo, uas tuaj yeem ntsib thaum lub sijhawm ua haujlwm hauv chav kuaj tau raug tshem tawm thiab muaj qhov tseeb heev, ruaj khov thiab raug haum rau prostheses.
Durability - zirconia crowns npaj nrog lub tshuab milling muaj tsawg qhov tsis zoo. Yog li ntawd, lawv muaj ntau ruaj thiab kav ntev dua li cov hlau-ceramic lossis tag nrho-ceramic crowns.
3. LAYERING nrog CERAMICS
Zirconia yog ib txwm opaque. Cov hniav uas tau darkened los ntawm kev raug mob, lwj los yog tom qab kev kho mob hauv paus kwj dej tuaj yeem npog nrog zirconia kom zoo li qub tom qab lub yas. Txawm li cas los xij, raws li nws tsis muaj qhov translucency muab los ntawm ceramics, zirconia crowns tuaj yeem muab tso nrog cov iav iav-ceramics kom tau txais qhov xav tau zoo nkauj.
4. Lub zog
Zirconia yog ib yam khoom uas muaj zog heev thiab tuaj yeem tiv taus txawm tias lub zog zom zaub mov ntau tshaj plaws hauv lub qhov ncauj. Tsis zoo li cov hlau-ceramic crowns, zirconia crowns yog hlau dawb thiab tsis tas yuav tsum tau muab tso rau ntawm ib txheej hlau hauv qab lawv.
5. KEV PAB CUAM
Zirconia crowns tuaj yeem txuas ncaj qha rau cov qauv hniav, yog li txhim kho qhov tuav thiab tseem ua rau nws xaiv tau zoo nyob rau hauv rooj plaub uas cov hniav tawg heev.
6. NATURAL TOOTH THOV NTAWV
Vim lub siab muaj zog ntawm zirconia crowns, lawv tuaj yeem npaj rau hauv cov ntu nyias hauv kev sib piv rau cov pa ceramic lossis hlau-ceramic crowns. Qhov no yog qhov zoo vim tias qhov tsawg dua ntawm cov hniav yuav tsum tau muab tshem tawm kom haum rau lub hauv paus.
7. Kev nyab xeeb
Zirconia crowns yog biocompatible thiab muaj kev nyab xeeb tag rau siv hauv qhov ncauj kab noj hniav.
Txawm hais tias muaj ntau yam txiaj ntsig ntawm zirconia crowns, muaj qee qhov tsis zoo cuam tshuam nrog cov khoom no thiab:
Opacity - raws li tau tham ua ntej, zirconia crowns muaj tsawg dua translucency. Yog li ntawd, lawv zoo li tsis zoo nkauj dua li lawv cov ceramic counterparts thiab tej zaum yuav tsis haum rau kev kho cov hniav pem hauv ntej.
Abrasiveness - zirconia yog cov khoom siv tawv heev. Yog li ntawd, muaj feem ntau uas cov zirconia crowns yuav abrade cov hniav tawm tsam. Qhov no tuaj yeem txo qis heev thaum
n cov khoom zirconia raug kho kom zoo thiab polished.
Tus nqi - tus nqi ntawm zirconia crowns yog me ntsis siab dua li cov khoom siv yas vim lawv cov khoom siv thiab cov nqi.