Nyob rau sab nraud ntawm lub qhov ncauj kab noj hniav, ib lub kaus mom feem ntau ntsia. Qhov no yog qhov tsim nyog los kho qhov kev ncaj ncees ntawm cov hniav thaum, rau ntau yam, ib tug neeg poob ib los yog ntau dua cov hniav. Hom prosthetics no tso cai rau koj txuag lub zog ntawm lub puab tsaig apparatus.
Cov khoom siv dab tsi yog cov kaus mom ua los ntawm
Rau cov khoom siv yas, cov hlau nplaum yog siv uas muaj lub zog siab. Hauv kev kho hniav niaj hnub no, cov khoom siv chromium yog siv, ntxiv rau alloyed nrog npib tsib xee thiab cob alt. Kev siv titanium tau ua pov thawj nws tus kheej zoo. Cov hlau no muaj zog tiv taus qhov chaw nruj heev, tsis ua kom tsaus, thiab tseem muaj biocompatibility siab. Ib daim yas tuaj yeem muaj cov hlau muaj txiaj ntsig. Kub crowns tso cai rau koj ua kom haum tshaj plaws, txij li cov hlau muaj ductility siab. Lawv ua haujlwm zoo thiab tsis tshua tawg. Txawm li cas los xij, cov nyiaj kub kub tseem hnav tawm, thiab nws kuj muaj tus nqi siab. Mainindications rau prosthetics nrog cam khwb cia crowns yog tag nrho cov poob ntawm ib los yog ntau tshaj cov hniav, lub restoration ntawm functionality ntawm cov hniav.
hom cam khwb cia hniav
Hnub no, cov hom cam khwb cia no txawv:
- Prostheses yam tsis muaj tshuaj tsuag - muaj qhov zoo ntawm cov hlau qub, polished kom ci.
- Ib-thooj yas nrog txheej (feem ntau golden). Hom no kuj muaj qhov tsis zoo - kev tshuaj tsuag tsis muaj txiaj ntsig zoo rau cov mucous membrane ntawm qhov ncauj kab noj hniav.
- Hom thib peb - crowns nrog hauv ob sab phlu. Raws li cov khoom siv, yas lossis cermet yog siv. Tshwj xeeb overlays npog qhov chaw ntawm lub prosthesis nyob rau hauv lub luag nyav cheeb tsam. Txawm hais tias qhov zoo nkauj zoo nkauj, xws li overlays tuaj yeem nti tawm. Tsis tas li ntawd, lawv cov nqi nce ntau vim yog siv cov khoom kim.
Thawj ob hom yog siv los hloov cov hniav sab. Yog tias koj xav tau prosthetics ntawm lub xub ntiag ntawm cov hniav, ces hom thib peb yog qhov zoo tshaj plaws. Nws yuav tsum tau muab sau tseg tias cov phab ntsa ntawm lub crown yog heev nyias (txog 1 hli). Qhov no cuam tshuam rau qhov kev sau ua ntej ntawm tus hniav nyob.
Kev tsim cov yas yas. Thawj qhov chaw kho mob thiab chaw kuaj mob
Ua ntej tshaj plaws, tus kws kho hniav yuav tsum kuaj xyuas lub qhov ncauj. Yog tias muaj cov chaw cuam tshuam, lawv yuav tsum tau ua kom huv. Thawj theem kho mob muaj xws li tau txais kev xav ntawm kev kho hniav thiab tus hniav nws tus kheej rau kev nruam ntxiv. Rau qhov noFeem ntau siv cov khoom siv silicone tshwj xeeb, uas tso cai rau koj kom pom tag nrho cov anatomical nta. Thaum lub sijhawm no, tus neeg mob tuaj yeem txhim kho kev tsim kho ib ntus tshwj xeeb. Lawv txoj hauj lwm yog kom ceev cov pos hniav, ua kom muaj kev zoo nkauj. Nyob rau hauv thawj lub sij hawm kuaj, ib tug collapsible plaster qauv yog ua. Tom ntej no, lub prosthesis yog plastered rau hauv lub occluder, thiab ib tug ciab crown yog ua qauv. Tom qab ntawd, cov wax yog hloov los ntawm hlau (nyob rau hauv ib tug tshwj xeeb foundry laboratory). Tom qab ntawd, cov cam khwb cia hlau tau ua tiav zoo.
thib ob kho mob thiab kuaj theem
Ntawm theem thib ob (kuaj kho mob) kev sib haum ntawm cov khoom siv qhov chaw. Tsis tas li ntawd, cov hniav yog hauv av rau qhov zoo tshaj plaws installation ntawm lub crown. Lub prosthesis yog sau nrog ciab, thov mus rau lub installation site. Cov khoom siv ntau dhau los ntawm lub qhov pre-drilled. Tom qab ntawd lub crown raug tshem tawm, tag nrho cov tsis raug yog smoothed tawm, occlusal kev sib raug zoo raug soj ntsuam. Cov khoom npaj tau raug xa mus rau chav kuaj. Qhov no yog qhov chaw polishing thiab polishing tshwm sim. Qhov tseeb ntawm kev tsim khoom yog kuaj ntawm tus qauv plaster. Nws tseem yog ib qho tseem ceeb uas yuav tau soj ntsuam seb qhov prosthesis kaw nrog cov hniav sib luag antagonist. Nws yog ib qho tsim nyog sau cia tias kev ua haujlwm yuav tsum muaj ntau qhov kev xav. Txawm tias qhov sib txawv me ntsis ntawm qhov loj tuaj yeem ua rau muaj teeb meem thaum hnav lub kaus mom, qhov mob tas li thiab tsis xis nyob.
Final installation
Cov yas tiav yog tsau rau hauv qhov ncauj kab noj hniav. Qhov twgimmersion ntawm qhov kawg ntawm lub prosthesis nyob rau hauv cov pos hniav yuav tsum tsawg heev. Qhov zoo ntawm qhov kev teeb tsa tseem raug kuaj xyuas los ntawm qhov nruj npaum li cas tus neeg mob cov hniav raug them. Tsis tas li ntawd, thaum kaw cov antagonists, yuav tsum tsis muaj qhov tsis xis nyob. Yog tias tsim nyog, nws yuav tsum tau zom ib feem ntawm cov khoom siv. Tsis tas li, yog tias tsis muaj cov khoom siv, cov yas tuaj yeem raug xa rov mus rau qhov chaw kuaj. Yog hais tias tus prosthesis haum, tus neeg tsis hnov nws, ces fixation tshwm sim nrog cov cement mus tas li. Nws yog ib qho tsim nyog sau cia tias yog tias cov yas yas tau nruab, lawv cov txheej txheem tsim khoom siv sijhawm ntev heev - txog li ob peb lub lis piam.
Qhov txiaj ntsig tseem ceeb ntawm cov yas no
Ua ntej tshaj plaws, cov yas yas muaj lub neej ua haujlwm ntev. Txij li thaum lub tshuab no tso cai rau koj los ua kom pom tag nrho cov nuances ntawm cov qauv anatomical, cov prostheses organically haum rau hauv cov hniav, cov khoom noj tsis tau nyob rau hauv lawv, thiab lwm yam. Tag nrho cov no tso cai rau koj hnav lawv rau ntau tshaj 10 xyoo. Nyob rau hauv kev tsim cov choj, soldering tsis siv, thiab qhov no ntxiv dag zog rau lub crowns thiab prolongs lawv lub neej kev pab cuam. Lwm qhov zoo dua yog tias cov ntaub so ntswg ntau yog khaws cia hauv qab lub kaus mom (tsis zoo li cov hlau ceramics). Txij li thaum lub thickness ntawm cov yas yas tsis pub tshaj 0.3-1 hli, cov hniav yog tsawg amenable rau kev sib tsoo. Yog li ntawd, nws lub neej yog txuas ntxiv mus. Tsis tas li ntawd, xws li prostheses yog ib qho yooj yim los tsim. Thiab, ntawm chav kawm, cam khwb cia yas (duab hauv qab) yog pheej yig dua, nws tus nqi kuj qis.
Qhov tsis zoo ntawm cov qauv cam
Tau kawg, rau cov hniav pem hauv ntej, cov yas no tsis yoghaum. Qhov tsawg kawg nkaus xaiv ntawm cov xim - golden, nyiaj - yog ib qho tseem ceeb drawbacks ntawm xws li prosthetics. Cov hlau muaj cov thermal conductivity siab, qhov no tuaj yeem ua rau tsis xis nyob hauv tus neeg mob lub qhov ncauj kab noj hniav. Txij li cov alloys nyuaj siv hauv kev tsim khoom, cov yas tuaj yeem ua rau hnav thiab deformation ntawm cov hniav ntawm lub puab tsaig sab nraud. Tsis tas li ntawd, kev tsim cov cam khwb cia yas yuav tsum muaj tus kws tshaj lij tsim nyog.
