Sooner los sis tom qab, tab sis peb txhua tus ntsib teeb meem kev kho hniav. Qee zaum cov kab mob hniav yuav tuaj yeem ua rau tsis yog hloov ntawm lawv qhov muag xwb, tab sis kuj tshem tawm. Raws li qhov pom tau tias, muaj kev xav tau rau cov kws kho mob los kho qhov kev txheeb ze lossis kev ua kom zoo nkauj. Ib qho ntawm feem ntau cov kev xaiv rau prosthetics los yog restoration ntawm ib tug raug mob hniav yog lub tsev ntawm ib tug hlau-ceramic crown.
Indications thiab contraindications rau lub installation ntawm lub crown
Tsis tas li ntawd rov qab kho cov hniav cuav (prosthetics), cov hlau-ceramic crowns yuav muab ntsia tau rau hauv cov nram no:
- ua txhaum ntawm koj tus kheej cov hniav (chipped, discolouration, qhov ncauj qhov quav, qhov tsis zoo, thiab lwm yam);
- ua kom cov hniav zoo dua (cov kab mob pathological thiab nrhiav tau);
- qhov muaj cov hniav cuav uas tsis raug tshem tawm , nrog rau kev sib thooj ua rau lawv cov khoom yas.
Hlau ceramic crowns tsis siv:
- hauv thaum yau;
- yog tias muaj ib tug neeg tsis txaus ntseeg rau cov ntaub ntawv muaj nyob hauv nws cov lus sib sau ua ke;
- nrog cov kab mob ntawm cov pos hniav (cov nyom ncig nyuab thiab qhov chaw mob ntsws);
- nyob rau hauv lub xub ntiag ntawm mob hlwb (bruxism);
- thaum tsis muaj peb lossis plaub zaug ua ke;
- yog hais tias tus neeg mob muaj cov hniav me.
Kev tsim thiab hom ntawm crowns
Ua kom cov yas, tom qab ua tiav qhov kev huv huv ntawm lub qhov ncauj, thiab tom qab tshem tawm ntawm lub pulp ntawm cov hniav uas yuav nyob rau hauv lub crown. Cov txheej txheem no muaj ob kauj ruam:
- Tsim ntawm ib lub cev pob txha. Nws siv qee cov txaij (cobalt-chromium, nickel-chromium, kub-palladium, kub-platinum).
- Daim ntawv thov rau lub thav duab ntawm ib qho tshwjxeeb phom hauv ntau cov khaubncaws sab nraud povtseg, txhua tus uas raug rho tawm haujlwm ntawm kev kub.
Thaum lub sij hawm daim ntawv thov ntawm ceramic txheej, xim ntawm ceramic-ceramic crown yog kho mus rau xim ntawm nws tus kheej cov hniav, txiav txim siab thaum lub sij hawm tshem tawm ntawm cov molds.
Nyob ntawm txoj kev siv tsim, ntau hom hlau-ceramic crowns yog qhov txawv:
- Cov ntoo ua los ntawm ib lub thawv ntoo uas muaj stamped. Nyob rau hauv cov ntaub ntawv no, mob ntawm tsis xws luag thiab inaccuracies nyob rau hauv lub formulation tsis yog tsawg.
- Crowns tau nrog ib lub tshuab tshwj xeeb milling. Lawv muaj feem xyuam rau cov tib neeg kab ntawm cov hniav.
- Crowns, nyob rau hauv uas txheej txheem ceramic yog loj dua nrog ib simultaneous txo ntawm cov hlau cev pob txha.
Kev saib xyuas thiab kev pab cuam lub neej
Tus kws kho mob qhia tias yuav tu zoo li cas ntawm lub qhov ncauj tom qab lub installation ntawm cov hlau-ceramic crowns. Tab sis txoj cai tswj xyuas kev kho mob tsis muaj kev txawv txav ntawm cov hniav qub, thiab muaj cov txhuam hniav ob zaug los yog peb zaug ib hnub twg. Tsis tas li ntawd, nws raug nquahu kom coj kev ntsuam xyuas tiv thaiv ntawm tus kws kho hniav ib zaug lossis ob zaug hauv ib xyoos.
Qhov kev pab cuam lub neej ntawm hlau-ceramic crowns, nrog kev pom zoo ntawm kev tsim cov tswv yim thiab kev tsim hluav taws xob, yog los ntawm 10 mus rau 15 xyoo.
Qhov tshwm sim ntawm cov teeb meem thiab tshem tawm ntawm lub crown
Yog hais tias nyob rau hauv txoj kev ntawm ib tug piece ntawm ib tug hlau-ceramic crown yog tawg tawm, thiab lub zoo nkauj tsos nqaij daim tawv yog disturbed, muaj tseem rov restoration. Tab sis nws yuav tsum raug sau tseg tias qhov no yog qhov kev daws teeb meem rau ib ntus. qhov ncaj ncees ntawm cov khoom raug cuam tshuam thiab qhov teeb meem no yuav rov tshwm sim rau lub sijhawm. Yog hais tias lub nti tau tshwm los ntawm sab hauv, nws tsuas yog hauv av kom tsis txhob raug mob rau ntawm tus nplaig. Nyob rau hauv txhua rooj plaub, nyob rau ntawm thawj lub sij hawm, nws yog pom zoo los hloov lub crown damaged.
Txij li thaum lub crown yog tsau nrog ib tug tshwj xeeb kev kho hniav cement, nws tshem tawm rau rov qab yuav tsum tau ua siv ib tug ultrasonic device. Nyob rau hauv nws lub hwj, xis mas yog rhuav tshem, thiab lub crown yog yooj yim muab tshem tawm.