Crown-molded: lub thickness ntawm cov kev yees duab, cov theem ntawm kev siv thiab ua

Lub sab feem ntawm lub qhov ncauj kab noj hniav feem ntau yog ntsia yas nrum hlau. Qhov no yog tsim nyog los anatomical ntseeg ntawm tus dentition, thaum twg rau ntau yam yog vim li cas ib tug neeg poob ib los yog ntau tshaj cov hniav. Qhov no hom ntawm prosthesis muaj nuj nqi tso cai rau koj mus cawm lub puab tsaig apparatus.

Yuav ua li cas cov ntaub ntawv no yog ua los yas

Zus tau tej cov yas hau hniav siv integrally nrum alloys uas muaj siab muaj zog. Nyob rau hauv niaj hnub kho hniav siv chromium-raws li cov ntaub ntawv, ntxiv alloyed nrog npib tsib xee, cobalt. Zoo-cov pov thawj kev siv ntawm titanium. Qhov no hlau muaj ib tug high kuj mus txhoj puab heev xov xwm, nws tsis darken mus rau tib muaj siab biocompatibility. Crown-molded yuav tsum muaj thiab zoo zoo nkauj tshooj. Kub crowns cia los mus ua kom cov feem ntau pes tsawg haum, vim hais tias cov hlau muaj ib tug high ductility. Lawv yog cov zoo siv, tsis tshua zom. Txawm li cas los, cov kub yas hnav tsis tau, nyob rau hauv tas li ntawd, muaj ib tug high nqi. Lub ntsiab indications rau prosthetic crowns khoom roj hmab yog tag nrho tsis muaj ib tug los yog ntau tshaj cov hniav, es ua dentition functionality.

Lub ntsiab yam ntawm tag nrho cov-daim hniav cuav

Rau hnub tim, faib tej yam ntawm cam khwb cia crowns:

• Uncoated prostheses - muaj rau hauv daim ntawv ntawm cov niam txiv hlau, polished ci.
• Crown-molded hmoov coated (feem ntau kub). Qhov no hom muaj ib tug drawback - Txau muaj tsis nkaus nyhuv lig rau hauv lub qhov ncauj mucosa.
• Qhov thib peb hom - yas nrog hauv ob sab phlu. Raws li siv yas npog cov ntaub ntawv uas los cermet. Tshwj xeeb laths coated nto ntawm lub prosthesis nyob rau hauv lub luag cheeb tsam. Txawm tias ib tug zoo zoo nkauj tsos, xws npog tej zaum yuav chais ya cov plaub. Nyob rau hauv tas li ntawd, lawv tus nqi yog ho muaj zog vim kev siv ntawm kim ntaub ntawv.

Thawj ob hom yog siv los hloov cov posterior hniav. Yog hais tias koj xav tau cov hniav yas rau pem hauv ntej ntawm lub dentition, nws yog qhov zoo tshaj plaws rau txoj kev ua tus thib peb tsos. Nws yuav tsum tau muab sau tseg hais tias lub crown phab ntsa heev nyias (1 hli). Qhov no ho muaj feem xyuam rau lub pre-sawdust nyob hniav.

Qhuav ntawm cam khwb cia crowns. Tus thawj soj ntsuam thiab kuaj theem

Ua ntej ntawm tag nrho cov, cov kws kho hniav yog yuam ua hauj lwm los ntsuam xyuas lub qhov ncauj kab noj hniav. Yog hais tias koj muaj lub cheeb tsam cov, lawv yuav tsum tau tsau tshuaj. Thawj kauj ruam yuav qhov kev npaj ntawm cov kev soj ntsuam lub tswv yim ntawm cov dentition thiab cov hniav nws tus kheej rau nws cov ntxiv casting. Ua li no feem ntau siv tshwj xeeb silicone khoom uas yuav siab tso saib tag nrho cov anatomical nta. Thaum lub sij hawm lub sij hawm no, tus neeg mob tej zaum yuav kom ib ntus tsim tshwj xeeb. Lawv ua hauj lwm - leeb hom ntawm cov pos hniav los ua ib tug zoo nkauj ntxim. Thaum tus thawj theem ntawm lub lab nws ua dismountable plaster qauv. Ntxiv muaj yog ib tug prosthetic occluder nyob rau hauv lub gypsum qauv ciab yas. Tom qab ntawd, cov ciab yog hloov nrog hlau (ib tug tshwj xeeb casting Laboratories). Ces muab pov steel yas kom daws kom zoo.

Qhov thib ob theem ntawm txoj kev soj ntsuam thiab kuaj

Thaum lub thib ob theem (soj ntsuam) tshwm sim haum yog cov khoom. Tsis tas li ntawd ua lapping deb hniav crowns kom zoo installation. Lub prosthesis yog lawm ua tus sau nrog ciab yog thov mus rau lub installation ntawm qhov chaw. Tshaj khoom nyob ntawm lub pre-drilled qhov. Ces lub crown yog muab tshem tawm, smoothed tawm tej inaccuracies, soj ntsuam cov occlusal piv. Qhov npaj cov khoom xa mus rau cov kev kuaj. Nws ua polishing, sib tsoo. precision raug mus kuaj ib tug plaster qauv. Nws tseem yog ib qho tseem ceeb los ntsuam xyuas thiab yuav ua li cas koom lub prosthesis nrog thaum uas tig mus hniav-antagonists. Nws yog ib nqi sau cia hais tias lub chaw ua hauj lwm yuav tsum tau ib tug ntau ntawm concentration. Txawm tias ib tug me me tsis sib xws ntawm qhov luaj li cas muaj peev xwm ua rau muaj teeb meem thaum hnav lub crown, lub qhov mob thiab tsis xis nyob.

kawg qhov kev tso kawm

Lub tiav lawm yas yog tsau nyob rau hauv lub qhov ncauj kab noj hniav. Nyob rau hauv cov ntaub ntawv no, qhov kawg ntawm lub prosthesis los ntawm ntsw cov pos hniav yuav tsum tsawg heev. installation zoo soj ntsuam thiab los ntawm yuav ua li cas nruj nreem them los ntawm tus neeg mob lub hniav. Tsis tas li ntawd, yuav tsum muaj tsis muaj tsis xis nyob thaum lub kaw ntawm lub antagonists. Yog hais tias tsim nyog, tej zaum koj yuav xav tau lapping deb ib feem ntawm cov khoom. Tsis tas li ntawd, lub shortage ntawm crown khoom tej zaum yuav rov xa mus rau cov kev kuaj. Yog hais tias lub prosthesis yog tsim neeg nws tsis xav tias hais tias muaj yog ib tug mus tas fixation xis mas. Nws yuav tsum tau muab sau tseg, yog hais tias tus set-cam khwb cia crowns, raug cov kauj ruam coj lawv heev ib tug ntev lub sij hawm - txog li ob peb lub lis piam.

Lub ntsiab zoo ntawm cov crowns

Ua ntej ntawm tag nrho cov-cam khwb cia crowns muaj ib tug ntev kev pab cuam lub neej. Vim qhov no technology tso cai rau koj mus rau tag nrho tso saib tag nrho cov ntsiab lus ntawm cov anatomical qauv, hniav cuav haum txig nyob rau hauv lub dentition, rau lawv tsis noj cov zaub mov thiab thiaj li nyob .. Tag nrho cov no ua rau nws tau hnav lawv rau ntau tshaj 10 xyoo. Nyob rau hauv lub chaw ua khoom ntawm cov txuas hniav tsis thov soldering, uas ntxiv yuav ntxiv zog rau lub crown, tom lawv lub neej. Lwm zoo dua - ib tug crown tsawv rau ntau tshaj cov kev kho hniav daim ntawv so ntswg (tsis zoo li cermets). Txij li thaum lub thickness ntawm cov cam khwb cia crown yog tsis ntau tshaj 0.3-1 hli, ib tug hniav tsawg kawg yog amenable mus sib tsoo. Raws li ib tug tshwm sim, nws lub neej ntawm kev ncua. Nyob rau hauv tas li ntawd, cov prostheses yog ib qho yooj yim los tsim. Thiab, ntawm chav kawm, muab pov steel yas (yees duab hauv qab no) yog xav paub ntau npaj meej muaj nyob, nws them yog kuj tsis tshua muaj.

Tsis zoo-cam khwb cia lug

Ntawm cov hoob kawm, cov crowns yog tsis haum rau pem hauv ntej cov hniav. Qhov tsawg kawg nkaus ntau ntawm cov xim - golden, nyiaj - qhov no yog ib yam ntawm cov loj disadvantages ntawm no prosthesis. Hlau muaj ib tug loj thermal conductivity, nws yuav ua rau tsis kaj siab ncus nyob rau hauv lub qhov ncauj kab noj hniav ntawm tus neeg mob. Raws li siv nyob rau hauv qhov siv thiab ua cemented carbides, crowns yuav ntxias coj, deformation ntawm tawm tsam lub puab tsaig dentition. Nyob rau hauv tas li ntawd, ntau lawm-cam khwb cia crowns yuav tsum tau heev txawj tshwj xeeb.