Txhua yam -ceramic crown thiab choj cov ntaub ntawvtau hloov ntau PFM kev kho dua tshiab hauv cov chaw sim thiab chaw kho mob thoob ntiaj teb. Tsis muaj ib qho khoom siv ua haujlwm rau txhua rooj plaub. Kev xaiv nyob ntawm tus hniav txoj hauj lwm, ncua ntev, tom rog, xav tau kev zoo nkauj, thiab cov ntsiab lus ntawm kev npaj.
Txoj Cai Tag Nrho -Ceramic Materials nyob ntawm rooj plaub
Tag nrho -ceramic restorations xa superior esthetics thiab biocompatibility piv rau hlau -raws li kev xaiv. Lawv tshem tawm cov npoo tsaus thiab cov hlau tsis haum thaum txhawb kev ua haujlwm ntawm CAD / CAM.
Zirconia tuav cov hniav tom qab, txuas hniav, cog, thiab siab - load.Lithium disilicatethiab cov iav ceramics ua tau zoo nyob rau sab hauv ib leeg crowns, veneers, thiab siab - thaj chaw zoo nkauj. Cov seem ntawm tsab xov xwm no rhuav tshem cov khoom siv, qhov sib txawv ntawm qhov kev ua tau zoo, kev xaiv cov logic, thiab vim li cas qhov kev ua haujlwm ua haujlwm zoo feem ntau txiav txim siab txog qhov kawg.
Dab tsi yog tag nrho -Ceramic Crown thiab Choj Khoom?
Txhua yam -ceramic crown thiab choj cov ntaub ntawv yog hlau-dawb restorations ua los ntawm ceramic systems. Lawv vam khom iav los yog polycrystalline qauv rau lub zog thiab zoo li.
Tsis zoo li PFM crowns nrog ib tug hlau substructure, cov kev xaiv no zam grey qhia-los ntawm cov gingiva thiab muab lub teeb kis tau zoo dua rau cov txiaj ntsig ntuj. Biocompatibility khiav siab, nrog cov ntaub so ntswg tsawg heev hauv cov neeg mob feem ntau.
Tag nrho -ceramic tsis txhais hais tias ib qho - loj- haum- tag nrho. Lub zog sib txawv ntawm qis dua 100 MPa hauv cov iav ceramics mus rau ntau dua 1000 MPa hauv monolithic zirconia. Translucency, bonding protocols, thiab kev kho mob qhia txawv sharply ntawm pawg.
Yam tseem ceeb ntawm txhua yam -Ceramic Crown thiab Choj Khoom
Feldspathic Porcelain thiab Leucite -Cov Ceramics
Cov iav tsoos no-raws li ceramics tseem ceeb rau kev zoo nkauj.Flexural zogFeem ntau zaum ntawm 80-160 MPa.
Cov kws kho hniav siv lawv rau veneers, inlays, onlays, thiab qis -kev nyuaj siab anterior crowns. Lawv ua raws li cov hniav zoo nkauj thiab sib xyaw ua ke nrog cov hniav uas nyob ib sab.
Cov kev txwv tshwm sim sai sai hauv kev thauj khoom. Lawv tawg yooj yim dua hauv cov chaw tom qab lossis txuas hniav. Tuav lawv rau qhov tsawg kawg nkaus -prep, esthetic- cov neeg uas tau tsav nrog qhov kev pom zoo occlusion.
Lithium Disilicate
Lithium disilicate iav ceramics, xws li IPS e.max, sib npaug zog thiab kev zoo nkauj. Flexural zog ncav cuag 360-500 MPa nyob ntawm hom thiab kev ua.
Cov khoom siv no haum rau cov yas anterior, premolars, veneers, inlays, onlays, thiab luv -span anterior txuas hniav. Nws bonds ntseeg tau rau cov qauv ntawm cov hniav tom qab HF etching thiab silane, txhawb kev txuag kev npaj, thiab xa cov translucency lifelike thiab xim.
Zam nws kom ntev - ncua txuas ntxiv tom qab lossis mob hnyav heev. Kev pheej hmoo ntawm pob txha nce ntxiv thaum cov khoom sib txuas ua pov thawj qis dua lossis cov khoom thauj tau siab.
Zirconia dominates siab - kev siv zog ntawm tag nrho cov - ceramic xaiv. Tag nrho -lub zog monolithic versions xa 900–{5}} MPa, thaum siab - cov qauv kev hloov pauv hloov pauv ntawm 650–850 MPa.
Siv nws rau cov yas tom qab, ntau- cov txuas txuas txuas, kev cog qoob loo, thiab cov neeg mob uas muaj kev sib tsoo hnyav lossis kev sib tsoo. Monolithic designs txiav chipping kev pheej hmoo piv rau txheej txheej.
Tsis yog txhua tus zirconia ua tau zoo ib yam. Siab -translucency blocks txhim kho anterior esthetics tab sis pauv qee lub zog. Tag nrho -contour monolithic zirconia tseem nyob rau hauv- mus rau qhov siab tshaj plaws.
Hybrid, Resin-Ceramic, thiab cov ntaub ntawv qib
Cov kev xaiv no pab cov kev xav tau tshwj xeeb xws li inlays, onlays, lossis kev kho dua tshiab ib ntus. Lawv muab cov resin thiab ceramic kom yooj yim milling thiab kho tab sis tsis muaj lub sij hawm ntev - lub zog ntawm zirconia los yog lithium disilicate rau tag nrho cov yas thiab txuas hniav. Kho lawv raws li cov kev daws teeb meem niche es tsis yog cov kev xaiv tseem ceeb rau kev thauj khoom -cov haujlwm ua haujlwm.
Yam Tseem Ceeb Thaum Xaiv Txhua Yam -Ceramic Materials
Kev xaiv cov khoom hloov pauv los ntawm cov npe lag luam mus rau qhov tseeb kho mob. Hniav txoj hauj lwm, hom kev kho dua tshiab, thiab tus neeg mob yam ua rau muaj kev txiav txim siab.
Strength, Esthetics, thiab Translucency
Zirconia ua rau lub zog. Lithium disilicate raws li nram no. Feldspathic thiab leucite cov ntaub ntawv taug kev. Esthetics thim rov qab qhov kev txiav txim: iav ceramics kis lub teeb zoo tshaj plaws, thaum laus zirconia zoo li opaque. Newer multilayer thiab siab -translucency zirconias nqaim qhov sib txawv.
Cov neeg mob sab nrauv tsis tshua xav tau lub zog siab tshaj plaws. Posterior choj thov nws. Ua haujlwm ua ntej tshaj qhov translucency qhov uas tsis ua haujlwm yog tus nqi siab dua.
Crown los yog Choj, anterior los yog Posterior
Ib leeg crowns tso cai ntau dua. Cov choj yuav tsum tau ua tib zoo sib txuas tsim thiab cov khoom siv zog scaled rau ncua thiab txoj hauj lwm.
Sab hauv cov hniav hais txog xim, translucency, thiab gingival kev sib raug zoo. Cov hniav tom qab yuav tsum hnav tsis kam thiab tawg toughness nyob rau hauv hnyav quab yuam.
Kev Npaj Chaw, Cementation, thiab Occlusion
Kev txo qis tsis txaus cuam tshuam cov khoom siv thiab qhov kawg ntxoov ntxoo. Lithium disilicate cia siab rau cov nplaum nplaum nrog HF acid etch, silane, thiab resin cements. Zirconia siv sandblasting ntxivMDP primerslos yog cov cements tshwj xeeb rau kev tuav ruaj khov.
Siab -occlusion lossis bruxism mob thawb mus rau zirconia nrog rau qhov sib txuas txaus. Implant restorations xav tau passive haum thiab ceev faj occlusal tswj tsis muaj periodontal ligament cushioning.
Txhua yam zoo tshaj plaws -Ceramic Materials for Crown Cases
Lub Rooj Sab Laj
High -esthetic anterior crowns ua tau zoo nrog lithium disilicate, feldspathic porcelain, los yog siab -translucency zirconia. Sib sib zog nqus stump ntxoov yuav xav tau ntau cov ntaub ntawv opaque los yog cov txheej txheem txheej txheem.
Kev sib txuas lus ntxoov ntxoo tseem ceeb. Xa cov duab meej, npaj ntxoov ntxoo, thiab cov ntaub ntawv ntawm cov hniav uas nyob ib sab mus rau qhov chaw kuaj xyuas kom pom tau qhov tshwm sim.
Posterior Crowns
Monolithic zirconia dominates posterior ib crowns, tshwj xeeb tshaj yog molars thiab siab -load scenarios. Lithium disilicate ua haujlwm rau qee qhov premolars nrog qhov chaw zoo thiab kev sib koom ua ke, tab sis tsis txhob txi cov kav ntev rau cov translucency ntxiv ntawm no.
Implant Crowns
Implants hloov rog ncaj qha. Posterior implant crowns nyiam zirconia. Cov anterior sib npaug zirconia lossis lithium disilicate nrog abutment xim, tshwm sim profile, thiab cov nqaij mos esthetics.
Zoo tshaj txhua yam -Ceramic Materials for Choj Cases
Luv-Span thiab Peb-Unit Bridges
Peb -cov txuas txuas yuav tsum tau ntsuas los ntawm qhov chaw. Kev ncua luv luv tuaj yeem siv lithium disilicate lossis siab -translucency zirconia raws li kev tswj xyuas. Posterior peb- cov txuas txuas feem ntau xav tau zirconia rau lub zog txuas.
Posterior thiab Ntev -Span Choj
Ntev spans thiab posterior txuas hniav default rau zirconia moj khaum los yog monolithic designs. Cov iav ceramics zoo li tus qauv lithium disilicate tsis muaj kev ntseeg txaus rau siab -kev pheej hmoo configuration.
Implant-Txoj kev txhawb nqa
Zirconia tuav ntau-unit thiab tag nrho- arch implant txuas hniav thaum cov qauv tsim kom ntseeg tau tias tsis haum. Kev sib txuas lus ntawm STL cov ntaub ntawv, occlusion, thiab kev txheeb xyuas cov kauj ruam txo cov kev rov ua dua tshiab rau cov xwm txheej txawv teb chaws.
Zirconia vs Lithium Disilicate: Yuav Ua Li Cas Xaiv Cov Tswv Yim
Zirconia yeej qhov twg muaj zog txoj cai: tom qab lub kaus mom thiab txuas hniav, ntev spans, implants, bruxism. Lithium disilicate yeej qhov kev zoo nkauj ua rau: anterior ib chav nyob, veneers, conservative preps.
Lo lus nug tiag tiag tsis yog "qhov twg zoo dua." Nug seb qhov xwm txheej tshwj xeeb no xav tau dab tsi tshaj plaws - kev puas tsuaj los yog lub teeb kis tau zoo.
|
Khoom siv |
Lub zog ntau (MPa) |
Esthetics |
Kev siv zoo tshaj plaws |
Kev txwv |
Lab Notes |
|
Lithium Disilicate |
360–500 |
Zoo heev |
anterior crowns, veneers, luv anterior txuas hniav |
Txwv rau qhov ntev tom qab spans |
Adhesive bonding tseem ceeb |
|
Tag nrho -Zirconium muaj zog |
900–1200+ |
Zoo (kev txhim kho) |
Posterior crowns / choj, implants, bruxism |
Muaj peev xwm tshwm tsawg dua translucent |
Monolithic txo qhov chipping |
|
Siab -Zirconium Translucency |
650–850 |
Zoo heev |
Kev sib npaug sab hauv / tom qab |
Lub zog qis dua me ntsis |
Multilayer xaiv muaj |
Vim li cas Lab Kev Ua Haujlwm Tseem Ceeb npaum li kev xaiv cov khoom
Kev xaiv khoom tsim lub hauv paus. Digital tsim thiab fabrication txiav txim siab ua tiav.
Cov kws kho hniav txawv teb chaws thiab cov chaw kuaj mob xa cov ntaub ntawv STL, tshuaj ntsuam xyuas sab hauv, duab ntxoov ntxoo, thiab cov ntaub ntawv xov xwm. Qhov tseeb CAD tswj cov npoo, kev sib cuag, occlusion, tuab, thiab qhov sib txuas qhov ntau thiab tsawg. Kev sib tham txog cov ntaub ntawv thaum ntxov tiv thaiv kev rov tsim dua tshiab.
Milling, sintering nkhaus, staining, thiab glazing cuam tshuam zirconia zog thiab tawm tsam cov hniav hnav. Lithium disilicate nias lossis milling ntxiv rau crystallization cuam tshuam rau ntug zoo thiab ntxoov ntxoo. Monolithic txoj kev txiav chipping tab sis xav tau meej contouring thiab polishing.
Kev tswj xyuas kev ua tau zoo yog qhov zoo sib xws, kev sib txuas sib txuas, occlusion, ntxoov ntxoo, thiab choj passivity ua ntej xa khoom. Kev xa khoom tsis tu ncua thiab tus nqi qis dua tseem ceeb dua li cov npe lag luam rau kev coj ua tsis khoom.
ADS Dental Laboratory Ltd ua haujlwm ua ib tugTuam Tshoj -raws li digital dental labtshwj xeeb hauv kev ruaj khov, siab - zoo tag nrho -ceramic crown thiab choj outsourcing rau cov kws kho hniav txawv teb chaws thiab chaw kuaj mob.
Feem ntau yuam kev thiab cov lus qhia xaiv cov khoom zaum kawg
Cov yuam kev feem ntau suav nrog kev xav tias qhov muaj zog tshaj plaws ib txwm sib npaug zoo tshaj plaws, kho txhua qhov zirconia tib yam, siv lub logic logic rau txuas hniav, tsis quav ntsej txog kev npaj ntim lossis occlusion, thiab tsom rau cov khoom siv xwb tsis yog tag nrho kev ua haujlwm zoo thiab kev sib txuas lus.
Kev xaiv cov khoom siv yuav tsum muaj qhov chaw ntawm cov hniav, hom kev kho dua tshiab, ncua sij hawm, kev xav tau zoo, kev pheej hmoo occlusal, qhov chaw npaj, thiab muaj peev xwm ua haujlwm.
Rau qhov nyuaj tag nrho -ceramic crown lossis choj, xa koj cov ntaub ntawv STL, duab, duab ntxoov ntxoo, thiab cov ntaub ntawv xav tau.ADS Dental Laboratory Ltdtuaj yeem tshuaj xyuas cov kev xaiv thiab xa cov kev sib raug zoo, qhov tseeb -milled restorations uas txhawb koj qhov kev coj ua ntev - lub sij hawm. Tiv tauj peb los tham txog koj rooj plaub tom ntej.
FAQ
Dab tsi yog qhov muaj zog tshaj tag nrho -ceramic crown khoom?
Tag nrho -lub zog monolithic zirconia yog qhov muaj zog tshaj plaws txhua yam -ceramic crown cov ntaub ntawv muaj, nrog lub zog flexural feem ntau yog li ntawm 900 txog 1200+ MPa. Nws ua tau zoo hauv cov hniav tom qab, ntev - txuas txuas, thiab siab - cov ntaub ntawv thauj khoom. Tseem, lub zog ib leeg tsis txiav txim siab qhov kev xaiv zoo tshaj - anterior esthetics thiab kev npaj yuav tsum tau hu rau cov khoom sib txawv.
Puas yog zirconia zoo dua lithium disilicate?
Zirconia tsis yog universally zoo dua lithium disilicate. Zirconia muaj lub zog zoo tshaj plaws rau cov kab mob tom qab, txuas hniav, cog, thiab bruxism mob. Lithium disilicate muab zoo dua translucency thiab esthetics rau anterior ib leeg crowns, veneers, thiab conservative restorations. Cov khoom siv yog nyob ntawm qhov chaw tshwj xeeb ntawm cov hniav, occlusion, thiab esthetic xav tau ntawm rooj plaub.
Puas tuaj yeem siv lithium disilicate rau txuas hniav?
Lithium disilicate tuaj yeem siv rau luv luv - ncua kev txuas txuas sab hauv raws li cov xwm txheej zoo tshaj plaws nrog qhov sib txuas txaus. Nws feem ntau tsis pom zoo rau ntev - ncua lossis tom qab txuas hniav vim muaj kev pheej hmoo tawg ntau dua. Hauv cov xwm txheej no, zirconia muab qhov tsim nyog ruaj khov thiab kev ntseeg tau.
Dab tsi yog cov khoom siv zoo tshaj plaws rau cov khoom siv tom qab ceramics?
Monolithic zirconia yog cov khoom siv zoo tshaj plaws rau feem ntau tom qab ceramics, tshwj xeeb tshaj yog cov molars thiab cov rooj plaub uas hnyav occlusion lossis txwv qhov chaw ntsug. Nws ua ke nrog lub zog siab nrog kev pheej hmoo tsawg chipping thiab zoo coj tus yam ntxwv. Lithium disilicate ua haujlwm tsuas yog nyob rau hauv cov kev xaiv premolar nrog rau cov xwm txheej zoo.
Dab tsi yog cov khoom siv zoo tshaj plaws rau anterior ceramics?
Lithium disilicate (xws li e.max) feem ntau yog cov khoom siv zoo tshaj plaws rau anterior ceramic crowns thaum siab tshaj plaws esthetics thiab ntuj translucency yog qhov tseem ceeb. High-translucency zirconia yog ib qho kev xaiv muaj zog thaum ntxiv dag zog los yog xav tau cov pob zeb tob. Kev xaiv zaum kawg yog nyob ntawm cov xim abutment, gingival zaub, thiab cov neeg mob xav tau.
