Iav-Ceramics hauv Kev Kho Hniav: 5 Qhov Tseeb Tseem Ceeb Txog Cov Khoom Siv Kho Hniav Iav-Ceramic

Mus rau hauv yuav luag txhua lub chaw kho hniav niaj hnub no thiab nug seb cov yas "porcelain" ua los ntawm dab tsi. Cov lus teb yog tsis yog porcelain ib txwm muaj. Nws yog iav-ceramic: ib tsev neeg ntawm cov ntaub ntawv tsim los kom zoo li cov enamel ntuj, khi tau zoo rau cov qauv hniav, thiab raug tsim los ntawm CAD / CAM milling hauv ob peb feeb es tsis txhob tsim los ntawm tes dhau ob peb hnub.

Phau ntawv qhia no yog qhov thib ob hauv peb cov khoom siv kho hniav, tom qab5 Cov Lus Tseeb Tseem Ceeb Txog Cov Khoom Siv Kho Hniav PMMANws qhia txog cov iav-ceramics yog dab tsi, hom twg koj yuav ntsib hauv kev xyaum, qhov twg lawv zoo tshaj plaws thiab qhov twg lawv tsis zoo, vim li cas lawv thiaj li xav tau cov khoom siv milling tshwj xeeb, thiab qhov twg cov thev naus laus zis tab tom mus. Txawm hais tias koj yog tus kws kho mob, tus tswv chav kuaj lossis tus neeg faib khoom uas ntsuas cov txheej txheem digital, cov no yog cov ntsiab lus tsim nyog nkag siab.

Qhov Tseeb 1: Cov Iav-Ceramics Yog Dab Tsi - thiab Vim Li Cas Lawv Thiaj Tseem Ceeb Hauv Kev Kho Hniav

Kev Txhais thiab Cov Qauv

Ib lub iav-ceramic yog ib yam khoom siv los ntawm kev tswj hwm crystallization ntawm ib lub iav. Qhov tshwm sim yog ib qho qauv ob-theem: ib lub matrix glassy nrog cov crystals zoo faib thoob plaws nws. Hom, qhov loj me thiab ntim ntawm cov crystals feem ntau txiav txim siab seb cov khoom siv ua li cas. Hauv cov khoom siv lithium disilicate uas siv dav dav, piv txwv li, cov theem crystalline ua rau kwv yees li 70% ntawm cov khoom siv los ntawm ntim.

Cov qauv no piav qhia txog qhov zoo nkauj ntawm cov khoom siv. Lub matrix iav muab qhov pom tseeb, qhov chaw ci ntsa iab thiab lub peev xwm raug etched thiab bonded. Cov siv lead ua cuam tshuam txoj kev ntawm qhov tawg loj hlob, uas ua rau cov khoom siv tawv dua li iav ib leeg. Cov iav-ceramics hniav yog tsim los zaum ntawm qhov zoo nkauj ntawm iav thiab lub zog ntawm ceramic.

Iav-Ceramics, Hniav Porcelain thiab Zirconia

Peb lo lus no feem ntau siv tsis meej, yog li kev qhia sai sai yuav pab tau.

• Cov khoom siv kho hniav(ib txwm feldspathic) yog ib yam khoom siv iav nplua nuj nrog cov ntsiab lus siv lead ua tsawg. Nws zoo nkauj heev tab sis tsis muaj zog, yog vim li cas nws thiaj li tau muab tso rau ntawm cov hlau lossis cov tub ntxhais muaj zog dua.
• Iav-ceramicsmuaj cov theem crystalline uas tau tsim tshwj xeeb, muab lub zog siab dua thaum khaws cov matrix glassy uas ua rau kev sib txuas thiab kev zoo nkauj ua tau.
• Zirconiayog polycrystalline thiab tsis muaj iav theem. Qhov ntawd yog qhov ua rau nws muaj zog heev, thiab kuj yog vim li cas nws thiaj kho thiab ua tiav txawv.

Qhov no tsis yog qeb duas. Feem ntau cov iav-ceramics muab qhov tseem ceeb rau qhov zoo nkauj thiab kev sib txuas ntawm cov nplaum, thaum zirconia muab qhov tseem ceeb rau lub zog, thiab txhua tus yog qhov kev xaiv zoo hauv cov xwm txheej kho mob sib txawv. Zirconia yuav raug them rau hauv phau ntawv qhia sib cais hauv cov koob no.

Vim Li Cas Cov Iav-Ceramics Thiaj Li Siv Dav Dav

Plaub yam zoo piav qhia txog lawv qhov chaw hauv kev kho hniav niaj hnub no:

• Kev Zoo Nkauj:Lawv lub teeb ci ntsa iab thiab ntau yam xim ua rau cov hniav kho kom sib xyaw nrog cov hniav enamel ntuj, yog vim li cas lawv thiaj yog thawj qhov kev xaiv rau cov cheeb tsam pom.
• Kev nplaum nplaum:Cov iav theem tuaj yeem raug etched thiab silanated, tso cai rau micromechanical thiab tshuaj lom neeg sib txuas rau cov resin cements. Qhov no txhawb nqa kev npaj kho kom zoo.
• Kev Siv Tau:Cov iav-ceramics raug muab los ua cov blocks tsim rau CAD / CAM, thiab lawv tuaj yeem sib tsoo kom meej rau cov npoo zoo.
• Cov ntaub ntawv kho mob:Cov iav-ceramics, thiab lithium disilicate tshwj xeeb, tau siv rau hauv kev kho mob tau ntau xyoo thiab tau sau tseg zoo hauv cov ntaub ntawv.

Qhov Tseeb 2: Cov Hom Iav-Ceramics Tseem Ceeb thiab Txhua Yam Siv Rau Dab Tsi

Tsis yog txhua yam iav-ceramics zoo ib yam. Cov hom siv lead ua thiab cov ntsiab lus sib txawv, thiab nrog lawv lub zog, kev pom tseeb thiab cov lus qhia pom zoo.

Feldspathic thiab Leucite-Reinforced Glass-Ceramics

Cov khoom siv ua los ntawm cov khoom siv Feldspathic yog cov khoom uas pom tseeb tshaj plaws thiab zoo nkauj tshaj plaws ntawm pawg, tab sis kuj tsis muaj zog tshaj plaws. Cov iav-ceramics uas muaj Leucite ntxiv cov siv lead ua los txhim kho lub zog thiab txo qhov tawg. Ob qho tib si feem ntau raug xaiv qhov twg qhov tsos tseem ceeb tshaj plaws thiab cov khoom thauj me me, xws li veneers, inlays, onlays thiab qee cov yas pem hauv ntej.

Lithium Disilicate

Lithium disilicate yog cov khoom siv kho hniav iav-ceramic uas paub zoo tshaj plaws thiab yog qhov uas feem ntau cov neeg txhais tau thaum lawv hais tias "iav-ceramic." Nws cov khoom siv sib txuas, zoo li koob muab nws lub zog siab dua li cov khoom siv leucite thaum tseem khaws cov qauv zoo nkauj. Nws yog siv rau cov yas ib leeg, inlays, onlays thiab veneers, thiab yog ib qho ntawm cov khoom siv milled feem ntau hauv kev xyaum CAD / CAM. Cov lithium disilicate ceramic blocks feem ntau muaj ntau yam translucents thiab ntxoov ntxoo, yog li tus kws kho mob tuaj yeem phim cov khoom siv rau rooj plaub.

Zirconia-Reinforced Lithium Silicate (ZLS)

Cov ntaub ntawv ZLS yaj zirconia rau hauv lub iav matrix (kwv yees li 10% ntawm qhov hnyav hauv qee yam khoom), ua ke nrog lithium silicate crystals. Lub hom phiaj yog cov qauv crystal zoo uas txhawb nqa lub zog thiab kev ua kom du. ZLS yog siv rau cov cim zoo sib xws li lithium disilicate: crowns, inlays, onlays thiab veneers.

Cov Blocks Uas Muaj Pre-Crystallized vs. Cov Blocks Uas Muaj Crystallized Tag Nrho

Dhau li ntawm chemistry, muaj qhov sib txawv uas tseem ceeb heev hauv chav milling.

• Cov blocks ua ntej crystallizedtau muab rau hauv qhov nruab nrab, mos dua. Lawv yooj yim dua thiab sai dua rau kev sib tsoo thiab mos dua rau cov cuab yeej. Tom qab sib tsoo, kev kho dua tshiab mus dhau los ntawm kev siv hluav taws xob hauv lub cub tawg ceramic kom mus txog nws lub zog kawg, xim thiab pom kev.
• Cov blocks crystallized tag nrhotwb nyob rau hauv lawv cov khoom kawg, yog li ntawd kev kho dua tshiab tuaj yeem ua kom ci lossis ci ntsa iab thiab xa tuaj yam tsis tas yuav hlawv. Qhov ntawd txuag lub sijhawm hauv kev ua haujlwm ib zaug xwb, tab sis cov khoom siv tawv dua yuav tsum tau siv ntau dua rau cov cuab yeej thiab lub tshuab.

Ob qho tib si tsis zoo dua li lwm tus. Cov blocks uas tau ua ntej lawm pauv ib kauj ruam ntawm lub cub tawg kom yooj yim dua rau kev txiav; cov blocks uas tau ua tiav lawm pauv kev txiav nyuaj dua rau kev ua haujlwm luv dua.

Qhov twg Resin-Ceramic Hybrids Haum

Koj yuav pom cov khoom siv resin-ceramic lossis hybrid blocks muag ua ke nrog cov iav-ceramics. Cov no tsis yog iav-ceramics: lawv muab cov khoom siv ceramic filler nrog cov polymer matrix, muab cov khoom siv yooj ywm dua, nqus tau qhov cuam tshuam uas yooj yim dua rau milling thiab kho. Lawv zaum hauv tib CAD / CAM workflow, thiab sib koom qee yam ntawm cov khoom uas tau tham hauv pebCov ntaub ntawv qhia txog PMMA kho hniav.

Hom Sib Xws rau Qhov Qhia

*Tsuas yog cov ntsuas xwb. Cov nqi sib txawv ntawm cov chaw tsim khoom thiab los ntawm txoj kev sim, yog li ntawd ib txwm xyuas cov ntaub ntawv ntawm cov khoom tshwj xeeb.

Rau cov inlays thiab onlays tshwj xeeb, iav-ceramics yog cov khoom siv xaiv tsa, raws li tau piav qhia hauv peb tsab xov xwm ntawmtib hnub ceramic inlays nrog lub rooj zaum CAD / CAM.

Qhov Tseeb 3: Cov Txiaj Ntsig Tseem Ceeb thiab Cov Kev Txwv ntawm Iav-Ceramics

Kev Zoo Nkauj thiab Kev Sib Txuas Lus

Ob lub zog loj tshaj plaws ntawm cov iav-ceramics muaj feem cuam tshuam. Vim tias cov iav theem tuaj yeem raug etched, qhov kev kho dua tshiab tuaj yeem sib txuas nrog enamel thiab dentin. Qhov no txhawb nqa cov qauv tsim tsawg kawg nkaus uas khaws cov qauv hniav ntuj ntau dua, thiab kev kho dua tshiab sib txuas pab faib cov khoom thauj mus rau hauv cov hniav. Ua ke nrog lawv cov translucency, qhov no yog vim li cas cov iav-ceramics muaj feem cuam tshuam nrog kev kho hniav zoo nkauj thiab kev kho mob.

Cov Kev Xav Tau Txog Lub Zog, Kev Nyuaj Siab thiab Kev Thickness

Cov iav-ceramics yog brittle. Ib yam li txhua yam ceramics, lawv tsis deform ua ntej ua tsis tiav, yog li qhov me me tuaj yeem ua rau muaj kev tawg. Piv nrog zirconia lawv muaj zog qis dua, uas yog vim li cas cov chaw tsim khoom teev cov tuab tsawg kawg nkaus rau txhua qhov cim thiab vim li cas lawv feem ntau tsis yog thawj qhov kev xaiv rau kev kho kom ntev lossis hnyav. Kev ua raws li cov lus qhia ntawm kev npaj thiab tuab ntawm cov khoom tshwj xeeb tsis yog xaiv tau.

Qhov uas yooj yim saib tsis taus: Kev rhiab heev ntawm cov txheej txheem

Vim tias cov iav-ceramics yog brittle, qhov zoo ntawm kev kho kom tiav lawm nyob ntawm seb nws tau machined li cas nrog rau lub thaiv twg tau xaiv. Microcracks lossis chipping ntawm ntug, qhia thaum lub sijhawm milling, tuaj yeem dhau los ua qhov tsis muaj zog tom qab. Ob qho kev kho kom tiav txiav los ntawm tib lub thaiv tuaj yeem ua haujlwm sib txawv yog tias lawv tau tsim nyob rau hauv cov xwm txheej sib txawv. Qhov no yog tus choj mus rau qhov tseeb tom ntej.

Qhov Tseeb 4: Vim Li Cas Milling Iav-Ceramics Xav Tau Ntau Ntxiv Los Ntawm Lub Tshuab

Kev txiav yog qhov chaw uas cov khoom siv tau piav qhia saum toj no ntsib lub ntiaj teb tiag. Iav-ceramics yog tawv tab sis brittle, uas yog kev sib xyaw ua ke nyuaj rau lub tshuab.

Vim Li Cas Kev Sib Tsoo Ntub Dej Yog Tus Qauv

Cov iav-ceramics raug sib tsoo nrog cov cuab yeej uas muaj pob zeb diamond, thiab lawv raug ua tiav ntub. Cov dej txias ntws tas li ua peb txoj haujlwm: nws nqa cua sov, yog li cov khoom siv tsis raug kev ntxhov siab los ntawm cua sov ntawm ntug txiav; nws yaug cov khib nyiab tawm, yog li cov cuab yeej tsis txhaws; thiab nws txo qhov kev pheej hmoo ntawm chipping thiab microcracking ntawm cov npoo nyias. Kev sib tsoo qhuav feem ntau yog tseg rau lwm cov khoom siv, yog vim li cas cov tshuab sib tsoo ntub raug suav hais tias yog ib pawg sib txawv.

Dab Tsi Ua Rau Qhov Zoo Ntawm Cov Nyiaj Tau Los

Muaj ntau yam tshuab uas txiav txim siab seb qhov kho kom zoo nkauj iav-ceramic puas yuav huv si:

• Qhov ceev thiab kev ruaj khov ntawm lub spindle:Ib lub spindle uas khiav du thiab tsis muaj kev khiav tawm ntau ua rau muaj kev co tsawg dua rau cov khoom tawg yooj yim.
• Cov cuab yeej mob:Cov cuab yeej pob zeb diamond uas siv lawm txiav tsis huv thiab siv zog nias rau ntawm cov khoom siv. Yuav tsum tau saib xyuas kev siv cuab yeej, thiab yuav tsum tau hloov cov cuab yeej raws sijhawm.
• Kev ntsuas thiab kev hloov chaw precision:Feem ntau cov kev kho dua tshiab raug txiav ua ntu zus, thiab cov cuab yeej yuav tsum rov qab mus rau tib qho chaw. Cov qhov yuam kev me me tshwm sim ncaj qha ua qhov sib txawv ntawm ntug.
• Kev tswj cov dej txias:Cov dej txias ntws thiab lim dej huv si thiab sib xws ua rau qhov txiav ruaj khov rau ntau lub tshuab.
• Txoj Kev Npaj Siv:Cov tswv yim roughing thiab finishing ntawm CAM software tseem ceeb npaum li cov kho vajtse.

Cov blocks uas tau ua kom tiav tag nrho ua rau muaj kev pheej hmoo rau txhua yam no, vim tias cov khoom siv tawv dua hnav cov cuab yeej sai dua thiab tso chaw tsawg dua rau qhov yuam kev.

Cov Haujlwm Ua Haujlwm ntawm Chairside thiab Small-Lab Muaj Qhov Tseem Ceeb Sib Txawv

Hauv kev xyaum ua haujlwm ntawm lub rooj zaum, qhov tseem ceeb tshaj plaws yog qhov ceev thiab yooj yim: ib chav yuav tsum npaj txhij thaum tus neeg mob tos, nrog kev cuam tshuam tsawg kawg nkaus ntawm tus neeg teb xov tooj. Hauv chav kuaj me me, qhov tseem ceeb tshaj plaws yog qhov zoo sib xws ntawm ntau chav, nrog lub neej cuab yeej kwv yees tau. Lub tshuab zeb ntub me me yuav tsum ua haujlwm ob qho tib si, uas txhais tau tias kev ua haujlwm tsis siv neeg (xws li kev hloov cuab yeej tsis siv neeg thiab kev ntsuas) tseem ceeb npaum li kev ua haujlwm raw.

Ib Piv Txwv: Cov Kev Cai No Zoo Li Cas Hauv Kev Xyaum

Ua ib qho piv txwv, qhovDN-W4Z PRO tshuab txiav iav-ceramicyog lub tshuab zeb me me uas ua rau hom haujlwm no. Nws cov lus qhia qhia ncaj qha rau cov yam ntxwv saum toj no:

• Kev txiav ntub dej, nrog rau qhov ceev ntawm 10,000–60,000 RPM
• Kev hloov chaw raug ntawm ± 0.01 hli
• Ib lub tsev qiv ntawv cuab yeej 3-qhov chaw uas tshem tau rau kev hloov cuab yeej tsis siv neeg
• Lub sijhawm milling ib txwm yog 15–26 feeb ib chav
• Ib qho chaw loj ntawm 485 × 365 × 325 mm thiab qhov hnyav ntawm 40 kg, uas haum rau lub rooj zaum hauv tsev kho mob
• Kev sib raug zoo nrog iav ceramics, lithium disilicate, cov ntaub ntawv sib xyaw, PMMA thiab titanium rods

Nws qhov ntau thiab tsawg kuj qhia txog qhov dav dua: ib lub platform ntub dej me me tuaj yeem npog cov iav-ceramic kho dua tshiab nrog rau kev ua haujlwm sib xyaw thiab PMMA. Zirconia ua raws li kev ua haujlwm sib txawv thiab raug them nyias.

Daim Ntawv Teev Cov Khoom Siv Tau Zoo Rau Kev Sib Tsoo Iav-Ceramic

Thaum soj ntsuam txhua qhov kev teeb tsa milling ntub rau iav-ceramics, nws yuav pab nug:

• Lub tshuab puas tsim los rau kev sib tsoo ntub, nrog rau lub tshuab lim dej txias uas sib xyaw ua ke?
• Lub spindle qhov ceev thiab nws qhov ruaj khov ntawm kev kub ceev yog dab tsi?
• Qhov kev hloov chaw raug hais yog dab tsi, thiab lub tshuab puas calibrate tau?
• Puas hloov tau cov cuab yeej yam tsis tas siv neeg, thiab yuav ua li cas thiaj kho tau qhov puas tsuaj thiab kev hloov cov cuab yeej?
• Cov blocks thiab qhov loj ntawm block twg raug txhawb nqa, suav nrog ob qho tib si pre-crystallized thiab fully crystallized?
• Puas yog CAM software muaj cov kev ntsuas tshwj xeeb rau cov khoom siv?

Qhov Tseeb 5: Cov Qauv Yav Tom Ntej hauv Kev Kho Hniav Iav-Ceramic

Cov iav-ceramics muaj keeb kwm ntev hauv kev kho mob, tab sis daim teb tseem tab tom txav mus los.

Cov Khoom Siv: Muaj Zog Dua, Pom Kev Zoo Dua, Yooj Yim Dua Kom Tiav

Cov chaw tsim khoom tseem niaj hnub ua haujlwm rau cov ntaub ntawv uas muaj zog dua nrog rau qhov pom tseeb ntuj, yog li ntawd ntau cov cim qhia, suav nrog kev kho tom qab, tuaj yeem siv nrog ib yam khoom. Kuj tseem muaj kev hloov pauv mus rau cov ntaub ntawv uas xav tau kev ua tiav tom qab tsawg dua, xws li kev siv crystallization sai dua lossis yooj yim dua, thiab cov kev xaiv crystallized tag nrho uas tuaj yeem xa tau yam tsis muaj kauj ruam firing.

Cov Khoom Siv: Kev Ntsuas Tseeb Hauv Qhov Chaw Me Dua

Cov tshuab ua haujlwm me me tab tom muaj peev xwm ntau dua. Cov yam ntxwv uas tau siv nrog cov tshuab loj hauv chav kuaj, xws li kev hloov cov cuab yeej tsis siv neeg, kev ntsuas tsis siv neeg thiab kev tswj hwm kov tau, tau pom ntau dua hauv cov chav me me ntawm lub rooj zaum. Thaum cov ntaub ntawv nyuaj dua, qhov tseem ceeb ntawm qhov zoo ntawm lub spindle, kev ntsuas thiab kev tswj hwm cov cuab yeej yuav loj hlob tuaj.

Kev Ua Haujlwm: Txij ntawm Kev Luam theej duab mus rau Kev Xa Khoom hauv Ib Zaug Mus Xyuas

Qhov kev taw qhia ntawm kev mus ncig yog ib txoj haujlwm ua haujlwm ib zaug xwb: kev tshuaj xyuas hauv qhov ncauj, kev tsim qauv pab los ntawm AI, kev sib tsoo sai thiab kev ua tiav, thiab kev sib txuas lus tib hnub. Sab kev kho mob ntawm txoj haujlwm no tau tshawb nrhiav hauv peb phau ntawv qhia raucov khoom siv ceramic inlays tib hnub.

Xaus lus

Cov iav-ceramics sib xyaw ua ke qhov zoo nkauj, kev sib txuas ntawm cov nplaum thiab CAD / CAM sib xws, yog vim li cas lawv tau dhau los ua cov khoom siv tseem ceeb hauv kev kho hniav niaj hnub no. Kev nkag siab txog cov hom, los ntawm feldspathic mus rau lithium disilicate mus rau ZLS, thiab qhov sib txawv ntawm cov blocks pre-crystallized thiab cov blocks crystallized tag nrho, pab xaiv cov khoom siv zoo rau txhua rooj plaub.

Qhov tseem ceeb uas yuav tsum nco ntsoov yog tias cov khoom siv thiab tshuab ua haujlwm ua ke. Cov iav-ceramics yog cov khoom tawg yooj yim, yog li lawv qhov zoo kawg nkaus nyob ntawm qhov xwm txheej milling ntau npaum li ntawm lub block. Kev teeb tsa milling ntub zoo yog ib feem ntawm kev tau txais cov txiaj ntsig txhim khu kev qha, tsis yog ib qho kev xaiv ntxiv.

Yog tias koj xav pom lub tshuab milling ntub me me rau iav-ceramics zoo li cas, koj tuaj yeem nyeem txogDN-W4Z PRO.

Cov Lus Nug Feem Ntau

Puas yog lithium disilicate yog iav-ceramic?

Yog. Lithium disilicate yog ib qho ntawm cov iav-ceramics kho hniav uas siv dav tshaj plaws. Nws muaj cov lithium disilicate crystals nyob hauv ib lub matrix iav.

Qhov txawv ntawm iav-ceramic thiab porcelain yog dab tsi?

Cov khoom siv kho hniav ib txwm muaj cov iav nplua nuj nrog cov khoom siv crystal tsawg. Cov iav-ceramics yog tsim los nrog cov khoom siv crystalline siab dua, uas ua rau lawv muaj zog dua thaum tseem khaws cov qauv zoo nkauj thiab kev sib txuas zoo li iav.

Qhov txawv ntawm cov iav-ceramic uas tau ua ntej thiab cov uas tau ua tiav tag nrho yog dab tsi?

Cov blocks uas tau ua ntej crystallized lawm mos dua thiab yooj yim dua rau milling, tab sis xav tau kev crystallization firing tom qab milling. Cov blocks uas tau crystallized tag nrho twb muaj lawv cov khoom kawg thiab tuaj yeem ua tiav yam tsis tas yuav firing, tab sis lawv nyuaj dua rau cov cuab yeej thiab lub tshuab.

Cov iav-ceramics puas tuaj yeem milled lub rooj zaum?

Yog. Cov blocks iav-ceramic yog tsim los rau CAD/CAM, thiab cov tshuab milling ntub me me ua rau kev kho dua tshiab ib zaug xws li inlays, onlays, veneers thiab crowns ua tau hauv chaw kho mob.