Zirconia vs. Emax Crowns

Thawj qhov uas tus neeg mob yuav tsum paub yog thaum twg tus kws kho hniav yuav tsum siv lub kaus hniav. Cov hniav nyiaj hniav kub yog siv nyob rau hauv cov xwm txheej uas cov hniav tsis muaj zog, hnav thiab tejzaum nws tawg lossis tawg. Cov no yog txhua qhov xwm txheej uas tus kws kho hniav yuav siv lub kaus hniav.

Crowns tau nyob ib puag ncig ntev heev. Vim tias kev nce qib hauv thev naus laus zis, cov txheej txheem tau hloov kho mus rau lwm hom kev kho dua tshiab xws li onlays thiab emax restorations. Thaum tus kws kho hniav txiav txim siab siv lub kaus hniav, nws yog rau qhov laj thawj tshwj xeeb ntawm kev sim rov ua kom cov hniav uas tsis muaj zog heev. Tus kws kho hniav yog aiming rau lub sij hawm ntev kev vam meej nrog cov hniav.

EMAX

Emax yog ib hom plooj (porcelain) hu ua lithium disilicate thiab nws yog ib qho thaiv ntawm cov plooj (porcelain). Vim tias nws yog ib qho thaiv ntawm cov plooj (porcelain) uas tsis yog ib qho uas cov kws kos duab ceramic lossis cov kws kho hniav tsim los ntawm tes, qhov thaiv yuav ua rau muaj zog ntawm cov khoom siv. Lithium disilicate yog ib qho nyuaj porcelain pib nrog thiab uas tso cai rau nws lub cev muaj zog kom khaws cia nrog kev kho dua tshiab. Nrog emax, tsis muaj cov khoom tseem ceeb uas yuav tsum tau nyob nrog cov khoom siv no vim tias txhua lub zog yog tsim nyob rau hauv cov plooj (porcelain). Emax tuaj yeem siv los ua cov khoom tseem ceeb uas yog cov plooj (porcelain) tuaj yeem muab tso rau ntawm qhov chaw kom ua rau kom muaj txiaj ntsig zoo ntawm kev kho dua tshiab rau eMax kho dua tshiab.

ZIRCONIA

Zirconia yog ib hom kev nthuav dav uas tau siv rau yav dhau los yim mus rau kaum xyoo tseem siv niaj hnub no. Cov neeg feem coob paub cov kab lus "cubic zirconia." Nws zoo li lub pob zeb diamond hloov siv hauv cov hniav nyiaj hniav kub. Cov khoom siv los ntawm kws kho hniav tsis yog nyob rau hauv daim ntawv cubic. Nws yog nyob rau hauv ib daim ntawv hu ua tetragonal daim ntawv uas tseem muaj lub hardness ntawm zirconia tab sis tuaj yeem siv tau thiab siv los ua cov khoom tseem ceeb rau kev kho hniav. Es tsis txhob siv hlau ua cov khoom tseem ceeb rau lub zog ntawm cov yas, cov kws kho hniav tuaj yeem muaj cov khoom siv dawb xws li zirconia. Cov khoom no tau deb ntawm cov hlau nam ntawm kev kho hniav. Txij li zirconia yog ib yam khoom nyuaj heev, nws muaj peev xwm tiv taus ntau qhov kev ntxhov siab los ntawm kev zom.

Ntshiab zirconia tuaj yeem siv los ua lub kaus mom thiab ntau tus kws kho hniav siv qhov no. Crowns feem ntau yog rau cov neeg uas muaj zog ntau heev hauv lawv qhov tom. Cov neeg uas ua ntau bruxing (cov hniav sib tsoo los yog clenching) yog xav tau ib co khoom uas muaj zog heev. Ntshiab zirconia crowns yog nrov heev rau cov xwm txheej zoo li no vim tias cov neeg mob no tuaj yeem rhuav tshem kev kho dua tshiab (xws li emax restorations) nrog lawv cov kev sib tsoo thiab sib tsoo. Lawv xav tau lub zog loj heev nrog cov kev kho kom rov zoo li no. Yav dhau los, tag nrho cov neeg mob no tuaj yeem siv tau yog hlau ntawm qhov chaw. Txawm li cas los xij, cov neeg mob tsis xav pom cov hlau tam sim no thiab yog vim li cas cov ntshiab zirconia crowns nrov heev. Cov neeg mob muaj peev xwm muaj ib yam dab tsi dawb rov qab los ntawm tej yam uas yog kub.

ZIRCONIA DRAWBACKS

Ib qho ntawm qhov tsis zoo ntawm zirconia yog tias cov xim yog opaque heev. Emax yog cov khoom siv ntau dua translucent yog li nws zoo nkaus li ntuj thaum nws khi rau cov hniav. Cov hniav muaj qee qhov kev hloov pauv vim tias cov kws kho hniav tab tom sim ua cov enamel. Hauv kev sib piv, cov xim ntawm zirconia tsis yog translucent thiab zoo nkaus li tsim los yog dag.

Kev kho zirconia tuaj yeem ua kom zoo dua qub los ntawm kev sib txuas cov txheej ntawm cov plooj (porcelain) mus rau cov khoom tseem ceeb. Qhov no yog ib txoj hauv kev nrov ua zirconia crowns zoo nkauj thiab muaj zog heev. Txawm li cas los xij, ib yam li cov plooj (porcelain-fused-to-metal crowns), zirconia crowns xav tau ob yam khoom uas yog cov khoom siv tseem ceeb thiab cov porcelain txheej. Yog li ntawd, tus kws kho hniav yuav tsum tshem tawm cov hniav ntau dua los ua kom chav rau qhov ntawd.

Pem hauv ntej hniav

Zirconia thiab emax tuaj yeem siv rau ntawm cov hniav pem hauv ntej. Txawm li cas los xij, zirconia tsis tuaj yeem siv los ua cov khoom siv veneer. Nws tsuas yog siv tau los ua cov khoom siv yas. Ib qho ntawm zirconia uas tseem tab tom tshawb fawb yog nws lub peev xwm los txuas rau cov qauv hniav. Muaj cov neeg hais tias zirconia tuaj yeem khi rau cov hniav tab sis tsis muaj pov thawj txaus. Emax tuaj yeem siv ua daim ntawv veneer thiab tuaj yeem ua kom zoo nkauj zoo nkauj thaum ua tiav.

Zirconia thiab emax tuaj yeem siv rau ntawm cov hniav pem hauv ntej tab sis zirconia yuav tsum nyob rau hauv daim ntawv yas. Zirconia yuav tsum muaj micromechanical tuav haum rau cov hniav uas yuav tsum yog nyob rau hauv daim ntawv ntawm ib tug crown. Los ntawm qhov ntawd, tus kws kho hniav tuaj yeem cement ntawm zirconia restoration.

Kev xaiv ntawm ib qho twg los siv yog nyob ntawm tus neeg mob tus neeg mob thiab cov yam ntxwv ntawm lub zog. Yog hais tias tus hniav yog qhov tsim nyog muaj zog thiab tus neeg mob tsis muaj qhov mob hnyav heev, kev kho emax tej zaum yuav yog txoj hauv kev zoo tshaj plaws mus rau qhov zoo tshaj plaws lub zog thiab kev zoo nkauj.

FELDSPATHIC PORCELAIN

Muaj lwm hom porcelain siv los ntawm cov kws kho hniav cov neeg tseem ceeb. Thaum zirconia thiab emax yog cov kev kho kom zoo nkauj uas ua rau cov hniav zoo nkauj, nws yuav siv cov txuj ci los tsim kev zoo nkauj thiab kev zoo nkauj uas tsis txawv ntawm cov neeg saib cov neeg mob. Lwm cov khoom siv porcelain siv los ntawm cov kws kho hniav cov neeg tseem ceeb yog hu ua feldspathic porcelain thiab feem ntau yog siv rau hom veneer. Nyob rau hauv ib txheej nyias nyias ntawm cov plooj (porcelain), tus kws kos duab ceramic tuaj yeem rov tsim qhov xwm txheej yog li tsis muaj leej twg yuav tuaj yeem qhia tau tias tus neeg mob muaj cov hniav veneers.

Yuav kom tswj tau qhov kawg tshwm sim, tus neeg mob xav tau ib tus neeg paub zoo ntawm kev sib koom ua ke ntawm kev kho kom rov zoo li qub hauv ntiaj teb kev kos duab thiab xim thiab kev tswj hwm. Txhawm rau tsim kom muaj lub ntsej muag luag ntxhi zoo nkauj, tus kws kho hniav yuav tsum yog tus kws kos duab zoo li tus kws kos duab ceramic.

Yog tias tus kws kho hniav tswj qhov tom kom raug, qhov kev kho kom zoo yuav muaj zog heev. Txawm li cas los xij, feldspathic tsis tuaj yeem sib tw lub zog ntawm zirconia core.

Kev kho mob

Tsis txhob siv cov tshuaj txhuam hniav abrasive. Tsis tas li ntawd, tsis txhob muaj tus neeg tu cev siv cov tshuaj niaj hnub siv los txhuam hniav vim tias cov grittiness yog abrasive. Nws yuav nplawm cov plooj (porcelain) thiab cov plooj (porcelain) sab nrauv yuav zoo li txaus ntshai thaum lub sijhawm dhau mus. Cov tshuaj txhuam hniav tsis raug lossis cov tshuaj txhuam hniav tsis raug tuaj yeem pib txhuam hniav thiab glaze ntawm cov plooj (porcelain).

Tus yuam sij rau kev saib xyuas kev zoo nkauj mus sij hawm ntev ntawm cov plooj (porcelain) yog tswj xyuas cov glaze ntawm cov plooj (porcelain). Lub glaze yog qhov tseem ceeb heev rau kev muaj kev vam meej mus ntev hauv kev luag nyav. Micro pob zeb diamond polishing muab tshuaj txhuam tuaj yeem siv niaj hnub los txhuam cov kev kho dua tshiab. Hauv tsev, gel lossis tshuaj pleev tuaj yeem siv tau ntev npaum li nws tsis muaj gritty.

THAUM TSEEM CEEB

Cov hniav nyiaj hniav kub tshwj xeeb yog siv los kho cov hniav uas tsis muaj zog heev. Txawm hais tias tus kws kho hniav siv zirconia lossis emax crown yog nyob ntawm tus neeg mob thiab ntau npaum li cas lawv xav tau los ntawm lub kaus mom. Cov neeg mob yuav tsum tau teem sijhawm sib tham nrog tus kws kho hniav uas muaj ntawv pov thawj los txiav txim seb qhov kev xaiv twg yog qhov kev xaiv zoo tshaj plaws rau lawv cov kev xav tau kho hniav.

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