Dental Porcelain yog iav-tej ntaub ntawv thiab khoom siv rau kev kho hniav thiab kev rov ua haujlwm
Cov Plawv Hniav Porcelain yog iav-tej ntaub ntawv thiab khoom siv rau kev kho hniav thiab kev kho kho hniav. Nws zwm rau qeb ntawm cov khoom siv kho mob.
Kev piav txog
Iav cov ntaub ntawv cov khoom siv rau kev kho hniav thiab kev rov ua haujlwm
Cov Ntawv Thov
Cov Khoom Siv Kho Mob
Kev kawm txuj ci
Cov Khoom Siv Av
1. Cov ntsiab lus
Cov Plawv Hniav Sib faib ua hom I thiab hom II. Ntaus Kuv Kho Hniav yog cov khoom lag luam muab rau hauv daim hmoov hmoov, thiab hom II Kev Kho Hniav yog cov khoom siv hauv ntau hom ntawv uas tsis yog hmoov. Cov xim nyob rau hauv lub rooj yog pom zoo thaum cov xim ntxiv rau lawv los ntawm kev paub qhov sib txawv hom porcelainain hmoov. Hom II Chav Kawm 1 Cov Khoom Siv Hniav yog siv rau kev tsim cov yas, cov qauv II hauv cov chav ua si nyob rau hauv chav ua si, thiab ntau lub inlays, thiab siab inlays.
2. Kev Kho Hniav Cov Khoom Kho Hniav
Kev kho hniav hlau plooj me nyuam ob lub zog ntawm cov hlau thiab kev zoo nkauj ntawm cov neeg, hauv kev ua haujlwm ntawm Orthopedic hauv qhov ncauj tau hloov kho qhov ncauj. Txawm li cas los xij, kev siv hauv tsev ntawm cov plooj (porcelain) Hmoov ntshuam los ntawm txawv teb chaws, tus nqi kim kim, tus nqi ib phaus rau kaum txhiab daus las. Tshawb nrhiav thiab kev txhim kho los hloov cov ntaub ntawv sib xyaw rau cov pob ceramic) Nws txoj kev tsim khoom siv txhua qhov siv tshuaj lom neeg cov tshuaj lom neeg, cov ntaub ntawv raw yooj yim tau txais, muaj ntau npaum li cas; Kauj ruam-cua crystal nag los nag lossis daus, cov qauv yooj yim, txuag lub zog txuag hluav taws xob; Nrog cov menyuam zeb sib tsoo rau hauv qhov ntxoov ntxoo ntawm plooj (porcelain) Nws lub zog siab, thiab hlau substrate ua ke khov kho, cov kev nthuav dav coefficient thiab alloy submentic ruaj khov, yuav ua tau zoo tshuaj lom neeg ua yeeb yam ci rau cov khoom thov sib xyaw. Cov cuab yeej tshawb nrhiav paub tab, cov khoom siv ntau lawm, tsim tau yooj yim.
Laser kho tshuab los txhim kho cov khoom sib zog ntawm cov hniav sib luag
Kev Kho Mob High-Speed Kev Kho Mob Laser Kev Kho Hniav Cov Khoom Siv Nanocrystalline ntau dua li 50%. Tsis muaj cov ntaub ntawv sib luag
Cov tshuaj thev naus laus zis no cov duab thiab microstructureureureure, thiab cov khoom siv kho tau zoo ib yam li lub fawm fawm ua qauv.
Kev Kho Hniav Kho Hniav Kom Txhim Kho Thiab Lub Zog Siv Zog thiab lawv cov ntawv thov tam sim no
Cov kws kho hniav cov khoom noj muaj cov tshuaj lom neeg zoo, hnav thiab corrosion tsis kam, thiab lawv cov khoom zoo nkauj tshwj xeeb yog qhov tsis suav nrog cov khoom lag luam hlau thiab cov khoom siv polymer thiab lwm yam khoom siv. Rov qab ua kom muaj txiaj ntsig ua los ntawm Ceramics yog ntom, muaj kev nyab xeeb thiab lawv cov chaw yog tus quav hniav, thiab cov kab mob uas tsis yooj yim rau kev ua raws li. Cov khoom siv tej hub ua cov khoom kho hniav rov qab siv tau dav siv, los ntawm feem ntau ntawm cov neeg mob thiab cov kws kho hniav. Txawm li cas los xij, qhov xam pom brittleness thiab tsawg zog ntawm cov khoom siv ceramic tsis txwv lawv daim ntawv thov kev kho hniav ntxiv. Mus txog rau xyoo pua 50s ntawm lub xyoo pua no tom qab kev loj hlob ntawm cov plooj (porcelain yuav fused rau cov hlau saum npoo av, cov ntaub ntawv ceramic hauv cov ntawv thov kho hniav tuaj yeem nce kev kho hniav. Cov tsiaj txhu kev kho hniav tshwj xeeb (dCA kaus hniav, DCA) siv hauv cov pob zeb ua khoom siv (PFM) hlau substrate, muaj lub zog siab, cov yam ntxwv siab. Nyob rau tib lub sij hawm, daim phiaj hniav txheej fused ntawm cov hlau hauv paus txheej yog corrosion-resistant thiab zoo nkauj xim, thiab kev sib xyaw ua ke ua rau tag nrho cov kev ua kom zoo nkauj thiab ruaj khov. Yog li ntawd, PFM yog dav siv nyob rau hauv cov tebchaws. Nyob rau hauv tom qab chaw kho mob tom qab-ceramic ua haujlwm tau pom tias muaj kev sib xyaw ua ke ntawm cov log tsheb hlau ntawm cov xim hlau lub hauv paus ntawm cov xim tsis sib xws thiab lwm yam. Txhawm rau kom ua rau qhov tsis txaus ntseeg ntawm PFM, cov neeg tau pib mob siab rau lawv tus kheej-ceramic tau ua kom muaj zog ntawm brittleness thiab muaj zog tsawg. Yog li, cov neeg ua haujlwm siv khoom tau ua ntau lub sijhawm ua ntau yam kev sim ua kom muaj zog thiab kev ua kom zoo nkauj, tab sis kuj ua rau muaj kev pab cuam lub zog rau cov khoom siv kho hniav. Ntau txoj kev ntawm kev ua kom nruj thiab txhawb nqa cov ntaub ntawv sib xyaw ua ke thiab muaj ntau cov khoom siv kho hniav thiab siv cov khoom siv kho kom zoo rau hauv cov hauv paus ntawm lawv lub hauv paus ntseeg tau raug qhia.
Cov hau kev los txhim kho lub zog thiab tawv ntawm cov ntaub ntawv kho hniav
(1) Sab Nraud Zub Dag Zog
Kev ntxiv dag zog ntawm kev kho hniav ceramics yog ua tiav los ntawm dispersing thib ob, cov lus, lossis cov fibers hauv matrix. Cov tshuaj thib ob yog dispersed rau hauv matrix, uas tuaj yeem deflect, ceg, blunt lossis abort los yog ua rau muaj zog thiab tawv ntawm cov khoom siv. Feem ntau siv cov tshuaj-theem thib ob suav nrog cov muaju al2o3, LOUCITE Crystals, Fluorite Particate, fluorite Niam muaju, thiab lwm yam. Nws yog pom tias AL2O3 tuaj yeem txhim kho lub zog thiab tawv ntawm kev loj hlob ntawm cov ceramics yog 986mpa, thiab cov pob txha flexcpa, thiab cov pob txha flexcpa, thiab cov pob txha flexpa, thiab cov pob txha flexpa, thiab cov pob txha flexpa, thiab cov pob txha flexpa, thiab cov pob txha flexpa, thiab cov pob txha flexpa, thiab cov pob txha muaj zog, thiab cov pob txha muaj zog, thiab cov pob txha sib zog, thiab cov pob txha sib zog, thiab cov pob zeb loj heev, thiab cov pob txha FLEXURING)
(2) kev kho mob saum npoo
Brittle Briccele ntawm cov chaw ua haujlwm plooj (veneers) yog feem ntau tshwm sim los ntawm tiam, yog li kev kho kom nyob saum npoo av, yog li kev kho sab saum npoo tau ua rau lub ntsej muag dos ntawm kev npaj. Cov kev kho deg xws li sib tsoo, glazing, tshuaj lom neeg ntxiv thiab ua kom sov. Muaj ob txoj hauv kev ntawm glazing: glazing ntawm enameled porcelainin thiab tus kheej glazing. Enameling yog daim ntawv thov ntawm sinineded enamel nyob rau saum npoo ntawm kev ua kom zoo thiab av porcelain rov qab tsim cov iav nyias nyias. Tus kheej-glazing yog kom muab cov pob zeb pleev xim rov qab rau hauv cov kab cercastain, kom cov kub hloov mus rau lub khob kub txheej, kho qhov saum npoo ntawm cov microcacks. Ntxiv rau qhov no, cov khoom sib luag ceramic tuaj yeem kho nrog laser kom muab lub zog ntxiv. Ceramic sib luag nrog 308rm XECL Laser Kev Kho Mob, lub roughness yog tsawg heev, thiab nrog lub zog 6.28j / cm2, thiab nrog lub zog ntawm cov nplaim hluav taws xob rau tib lub npoo ntawm cov roughness yog qis dua. Txawm li cas los xij, kev kho hniav kho hniav kho nrog XECL Laser xav tau kev kho ntxiv vim tias qee cov micrbacks thiab npuas tseem muaj nyob ntawm lawv cov npoo. Kev kawm cov nyhuv ntawm kev kho deg thiab kev kho cua sov ntawm lub zog ntawm kev kho cov ceramics, lawv pom tias cov cua sov ua kom muaj zog dua vim yog cov theem hloov pauv. Ntxiv rau qhov no, hnoos qeev nrog kev sib tsoo cov kev taw qhia mus thaum tus me me muaj zog dua li cov kab sib tsoo ntawm cov kab sib tsoo ntawm cov quav.
Tshuaj muaj kuab lom yog ua tiav los ntawm ion-pauv cov txheej txheem, uas yog tseem siv los ntawm kev sib pauv Sodium-Ion Feldspathic ceramics nrog cov diamet me me. Ion Txauv Kev Txhim Kho Cov Qauv Hluav Taws Xob Feem ntau muaj ob lub ntsiab lus hauv qab no los hloov pauv, qhov tsim ntawm lub siab txheej hauv txheej txheej saum npoo av; ② Lithium ions los hloov Sodium ions los txo cov khoom siv saum npoo av ntawm cov txheej txheem saum npoo av yog nyob rau hauv cov txheej txheem ntawm cov txheej txheem ntawm cov txheej txheem ntawm cov txheej txheem ntawm cov txheej txheem sib xyaw, ua kom muaj zog ntxiv rau kev nthuav dav. Cov nyhuv ntawm ion txauv tau cuam tshuam los ntawm cov yam xws li hloov sijhawm, ntsuas kub, thiab siab xav txog ntawm ions. Ntau feem ntau siv yog pastes nrog K2Hpo4 lossis cov poov xab yog cov khoom siv tseem ceeb, uas tau thov kom ua tiav cov tshuaj tiv thaiv kab mob kom tiav cov tshuaj tiv thaiv kab mob.
Tag
Txij li cov khoom noj kab ke sib cog lus rau kev kho tus kaus hniav rov qab, vim tias nws cov nyhuv zoo thiab muaj kev tsis txaus siab thiab lwm yam kev thov kho hniav. Yog li ntawd, cov neeg ua haujlwm cov ntaub ntawv tau ua ntau txoj haujlwm ntawm kev txhim kho kev kho mob ceramic, xws li lub teb chaws zoo tshaj plaws, theem kev hloov kho sab hauv Tsim GL GL GL GL GL GL GL GL ⅱ hom al2o3 iav permeable tsim los ntawm TEARY SCE-thiab cov ntawv thov kev kho mob tau nthuav dav los ntawm ANTERIOR CRUBS thiab txuas hniav.
Raws li high-zog crown thiab choj soundatorat, cov neeg muaj kev cia siab rau AL2O3 Ceramics, Al2O} Nws paub zoo tias cov qauv ntawm cov khoom txiav txim siab nws txoj kev ua tau zoo, thiab yuav ua li cas kom lub zog ua haujlwm yog qhov teeb meem tseem ceeb ntawm kev txhim kho ntawm Ceramics. Nrog kev txhim kho ntawm cov khoom siv tshuab cov khoom siv ceramic thiab cov kev thov kev ntseeg tau txoj kev kho hniav hauv kev kho hniav cerorations yuav yeej ua tau kev vam meej thiab kev loj hlob.
Ntawv Sawv cev
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2yang yinghui. Laser ua tshuab tuaj yeem txhim kho kev sib zog ntawm cov ntaub ntawv kho hniav tawv [J]. Cov ntaub ntawv niaj hnub Dynamics, 2008 (7): 15-15. Baidu kev kawm. 2008 [ite hnub 2018-07-18]
3 Chen Hanbin, Wen Jin. Kev ua kom nruj thiab txhawb txoj hauv kev rau kev kho hniav thiab lawv cov ntawv thov tam sim no [J]. Cov ntawv sau cov ntaub ntawv kho hniav thiab cov cuab yeej siv, 2007, 16 (3): 157-159. paub.cn. 2007 [hnub tim 2018-07-18]