Tetracycline yog ib hom tshuaj siv los kho cov kab mob. Nws muaj cov nyhuv staining rau menyuam yaus cov hniav. Yav dhau los, kev kho mob tsis tau saib xyuas cov nyhuv staining ntawm tetracycline cov hniav. Tam sim no cov tshuaj no tsis siv rau hauv cov menyuam yaus thiab cov poj niam cev xeeb tub lawm, tab sis qee cov niam txiv tsis muaj kev nkag siab zoo hauv cheeb tsam no. Thaum tus me nyuam mob, lawv blindly thov tetracycline tshuaj. Yog li ntawd tetracycline cov hniav tseem tuaj yeem pom hauv menyuam yaus.
Txawm hais tias tus kab mob no hu ua tetracycline hniav, nws yog tiag tiag tsis tsuas yog tshwm sim los ntawm tetracycline, tab sis kuj tshuaj nyiam oxytetracycline, norchlortetracycline, thiab lwm yam. Vim tias cov qauv ntawm cov tshuaj no zoo ib yam li tetracycline. Cov saum toj no yog cov tshuaj tetracycline tsev neeg. Ntawm lawv, tetracycline thiab norchlortetracycline muaj qhov muaj zog tshaj plaws ntawm kev hloov xim. Lawv puas cov hniav thaum lub sij hawm mineralization ntawm cov hniav.
Lub sijhawm no, cov tshuaj tetracycline uas nkag mus rau tib neeg lub cev ua ke nrog cov calcium hauv cov hniav los tsim cov khoom ruaj khov, uas cuam tshuam rau calcification ntawm cov nqaij tawv tawv ntawm cov hniav thiab ua rau hypoplasia ntawm cov hniav enamel.
Thaum tus me nyuam tseem tsis tau yug los los yog tseem nyob rau hauv me nyuam mos sai tom qab yug me nyuam, txawm los ntawm 1 mus rau 7, 8 xyoo, cov hniav nyob rau hauv lub sij hawm no yog nyob rau hauv lub mineralization lub sij hawm, thiab kev siv ntawm cov hniav. tetracycline tshuaj tuaj yeem ua tau yooj yim cov hniav discoloration. Tsis tas li ntawd, tetracycline yog rhiab heev rau lub teeb, yog li lub hnub ci thiab ultraviolet rays tuaj yeem ua rau nws hloov xim, thiab xim yuav maj mam zuj zus mus rau lub sijhawm.
Tej zaum koj yuav xav tias tej zaum yuav tsis muaj teeb meem nrog kev siv tetracycline ib zaug? Qhov tseeb, qhov txaus ntawm tetracycline ib zaug tuaj yeem ua rau muaj kev tu siab rau lub neej. Tetracycline cov hniav tsis muaj xim tsis sib xws, uas tsis sib xws ntawm cov hniav. Nws feem ntau stains lub dentin. Cov xim hloov hauv lub teeb daj, tsaus daj, daj xim av, lub teeb grey, grey thiab dub. Qhov no muaj feem xyuam rau qhov loj thiab hom tshuaj. Qee qhov hnyav tetracycline cov hniav tuaj yeem tsim cov enamel hypoplasia, ua rau cov hniav tawv nqaij tsis xws luag. Raws li kev txheeb cais, ze li ntawm 1.3 feem pua ntawm cov tub ntxhais kawm muaj tetracycline cov hniav.
BALLYA muab a tetracyclines xeem los qhia koj yog tias muaj tetracyclines seem hauv cov khoom siv mis uas koj noj txhua hnub.
Thaum lub sij hawm ntawm kev loj hlob ntawm cov hniav thiab mineralization, tetracycline tsev neeg cov tshuaj noj tuaj yeem nqus tau rau hauv cov ntaub so ntswg kom stain cov hniav.
Cov nyhuv tseem ceeb ntawm tetracycline ntawm cov hniav yog staining, thiab nws tuaj yeem ua rau enamel hypoplasia. Kev cuam tshuam ntawm tetracycline ntawm cov hniav staining thiab enamel hypoplasia muaj feem xyuam rau cov hauv qab no:
Nws yog qhov tsim nyog rau cov neeg mob uas tsis kam tshem cov hniav ntau dhau thiab xav tau cov nqi kho mob tsawg thiab ua kom dawb ceev.
Standard:
Resin kho kom zoo nkauj zoo li yog cov txheej txheem yooj yim, tab sis nyob rau hauv lub tsev kho mob, muaj ntau qhov ua tsis tiav tau pom. Yog vim li cas yog tias tsis muaj kev nkag siab tob txog niaj hnub ntau yam khoom siv cob thiab kev sib txuas lus. Nyob rau hauv cov txheej txheem kho mob, nws yog ib qho tsim nyog yuav tsum tau ua tib zoo sib piv cov xim, nruj me ntsis txwv tsis pub ya raws, tshem tawm cov caries, tiv thaiv cov tawv nqaij, txheej filling, ntse shading, txaus solidification, cwm pwm shaping, ceev faj blending, siab polishing, thiab ntug sealing. Txhua kauj ruam yuav tsum tau ua tib zoo saib xyuas, thiab txhua qhov kev tsis saib xyuas yuav ua rau poob qis ntawm kev ua tiav ntawm kev kho kom zoo nkauj. Tsuav nws tau ua tib zoo kho, qhov kev kho kom zoo tuaj yeem tau txais.
Kev kho mob tshiab kawg rau qhov hnyav tetracycline cov hniav Kev kho mob yog tsim rau cov neeg mob uas muaj tetracycline cov hniav uas tsis kam tshem tawm cov hniav ntau.
Cov Porcelain veneers pib hauv Tebchaws Meskas thaum xyoo 1980s. Vim hais tias cov hniav ntuj raug tshem tawm tsawg dua, thiab cov xim, cov duab, kev teeb tsa, thiab qhov loj ntawm cov hniav tuaj yeem hloov pauv kom ua tiav cov txiaj ntsig zoo nkauj thiab kav ntev, yog li nws dhau los ua txoj kev kho kom zoo nkauj nrov tshaj plaws hauv Tebchaws Europe thiab Asmeskas.
Cov Porcelain veneers yog cov pobzeb zoo li cov pobzeb uas tau nplaum rau ntawm cov hniav. Cov khoom siv feem ntau siv rau plooj (veneers) veneers yog feldspar porcelain thiab tshiab IPS EMPREE cam khwb cia ceramics. EMPRESS yog ib hom leucite-txhim kho nrog tsawg casting shrinkage thiab siab kho qhov tseeb. Porcelain veneer yog translucent, zoo ib yam li cov hniav enamel. Porcelain veneers siv cov enamel txheej ntawm cov hniav thiab cia siab rau lub zog siab resin bonding los muab kev tuav txaus.
zoo
A. Kev Nyab Xeeb
Muaj cov ntaub so ntswg tsawg uas tsim los ntawm kev sib tsoo, uas tuaj yeem txuag tau ntau cov ntaub so ntswg yam tsis tau tua cov hlab ntsha, tswj cov sequelae ntawm kev ua tiav cov yas rov qab zoo li cov tawv nqaij o thiab necrosis tom qab phais, thiab tuaj yeem tswj xyuas cov hniav mus ntev. .
B. Zoo nkauj
Zoo pob tshab thiab shading, nrog cov yam ntxwv kho qhov muag tib yam li cov ntaub so ntswg ntuj, tsis muaj cov khoom siv hlau, uas qhia qhov zoo nkauj zoo nkauj, thiab yuav tsis muaj cov kab dub ntau hauv cov hniav porcelain. Muaj tsib xim sib txawv ntawm cov plooj (porcelain blocks) xaiv los ntawm thaum ua cov plooj (veneer) cam khwb cia. Nyob rau tib lub sijhawm, dyeing sab nraud tuaj yeem siv los kho cov xim zoo nkauj. Muaj tsib qhov sib txawv ntawm cov nplaum nplaum thiab cov neeg ua haujlwm dawb opaque rau kev soj ntsuam kev sib raug zoo uas tuaj yeem siv los pab kho cov xim ntawm cov plooj (veneer) kom ua tiav cov txiaj ntsig kev zoo nkauj tag nrho. Thiab lub siab hnav tsis kam thiab tsis muaj xim ntawm cov plooj (porcelain) nws tus kheej tuaj yeem ua tiav cov nyhuv whitening mus tas li.
C. Health
Porcelain veneer muaj lub teeb xa tawm zoo heev, thiab cov pos hniav tuaj yeem ua kom tiaj tus thaum npaj cov hniav, uas yog qhov zoo rau kev xav thiab kev sib txuas. Qhov chaw uas txuas nrog cov pos hniav kuj tsuas yog nyob rau sab labial, uas ua rau cov pos hniav tsawg dua. Yuav tsis muaj qhov hloov pauv ntawm cov pos hniav tshwm sim los ntawm cov hlau ions ntawm cov hniav hlau porcelain. Lub hardness ntawm cov plooj (porcelain crown) yog ntau dua li cov hniav enamel, uas tuaj yeem ua rau hnav ntawm cov hniav ntawm lub puab tsaig. Lub hardness ntawm IPS Empress cam khwb cia porcelain yog qis dua enamel, uas tuaj yeem tiv thaiv lub puab tsaig sab nraud.
D. Xis
Kev kho kom zoo nkauj tag nrho yuav tsum tau zom cov hniav ntuj ntawm sab lingual, thiab cov hniav ntawm sab lingual feem ntau noj qab nyob zoo, thiab nyob rau hauv lub xeev feem ntau sib koom tes nrog tus nplaig thiab cov hniav antagonist. Qhov zoo tshaj plaws plooj (porcelain crown) tsis tuaj yeem rov qab los rau cov xwm txheej dhau los. Porcelain veneer restoration khaws cia feem ntau lossis txawm tias tag nrho cov duab zoo nkauj, tiv thaiv lub puab tsaig sab nraud.
tsis zoo
Nws yog qhov tsim nyog rau tetracycline hnyav cov hniav nrog kev kho hniav hypoplasia lossis cov hniav tsis muaj zog, cov hniav rov tetracycline, thiab lwm yam.
Tetracyclic bisque plooj (porcelain crown restoration) tuaj yeem tau txais cov txiaj ntsig zoo nkauj zoo tshaj plaws, tab sis kev zoo nkauj tsis yog qhov teeb meem tseem ceeb tshaj plaws rau tetracyclic bisque porcelain crown kho dua tshiab. Txawm tias tus kws kho hniav nruab nrab feem ntau tuaj yeem ua rau lub plooj (porcelain crown) nrog cov xim sib txawv kiag li ntawm qhov qub.
Qhov tseem ceeb tshaj plaws yog kom tau txais cov txiaj ntsig zoo nkauj zoo tshaj plaws thaum tswj kev noj qab haus huv ntawm cov hniav mus ntev, vim tias muaj hnub nyoog ntawm cov neeg mob hnyav. tetracycline cov hniav yog nyob nruab nrab ntawm 30 thiab 40 xyoo, thiab lub hnub nyoog nruab nrab ntawm lub neej yog 80, uas txhais tau hais tias cov hniav no yuav tsum kav ntev li 40 xyoo.
Porcelain crown restoration yuav tsum muaj qee yam ntawm cov hniav kom tau abraded, yog li muaj qee qhov kev puas tsuaj rau cov hniav. Yuav ua li cas kom tau txais cov txiaj ntsig zoo nkauj zoo tshaj plaws nrog tus nqi tsawg kawg nkaus ntawm lub cev thiab cov txiaj ntsig zoo rau lub sijhawm ntev? Nws xav kom cov kws kho mob kom muaj lub luag haujlwm siab, kev hlub, kev ua haujlwm zoo thiab lub hauv paus zoo theoretical.
Tetracycline cov hniav feem ntau tshwm sim los ntawm kev nqus ntawm tshuaj tetracycline los ntawm cov placenta los yog pub mis thaum lub sij hawm tus me nyuam txoj kev loj hlob ntawm cov hniav. Tetracycline cov hniav tuaj yeem ua rau cov menyuam yaus muaj kev ntseeg tus kheej thiab kev ntseeg tus kheej. Txawm hais tias muaj ntau txoj hauv kev rau kev kho mob tom qab, nws nyuaj thiab siv sijhawm. Yog li txoj kev zoo tshaj yog tiv thaiv nws ntxov.
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