Porcelain-fused-rau-hlau (PFM) crowns yog ib qho kev xaiv classic hauv kev kho hniav kho hniav rau ntau tshaj 35 xyoo, tawm tsam qhov sib npaug zoo ntawm lub zog thiab kev zoo nkauj. Ntau tus neeg mob thiab kws kho hniav tseem xav txog lawv qhov kev xaiv txhim khu kev qha. Yog li, koj tuaj yeem cia siab tias PFM crown yuav kav ntev npaum li cas?Raws li ntau yamkev tshawb fawb soj ntsuam thiab cov lus qhia, PFM crowns muaj qhov nruab nrab ntawm lub neej ntawm 5-15 xyoo, thiab nrog kev saib xyuas zoo, ntau tus tuaj yeem nyob tau 15 xyoo lossis ntev dua-qee zaum txog 20 xyoo lossis ntau dua.
Hauv kev xyaum, lub neej ntev ntawm PFM crown feem ntau yog nyob ntawm tus kheej tus cwj pwm, qhov zoo ntawm cov yas yas, thiab tus neeg mob lub qhov ncauj tag nrho. Tsab ntawv xov xwm no yuav siv sijhawm los saib ze dua ntawm qhov nruab nrab ntawm lub neej ntawm PFM crowns thiab cov ntsiab lus tseem ceeb uas cuam tshuam rau lawv txoj kev ua haujlwm ntev -.
PFM Crowns: Nruab Nrab Lifespan
PFM crowns muaj lub zog hlau zoo rau kev txhawb nqa, sib tshooj nrog cov plooj (porcelain) uas ua rau cov xim thiab kev ntxhib los mos ntawm cov hniav ntuj. Lawv lub neej ntev yog 5-15 xyoo. Cov peev txheej muaj kev ntseeg siab xws li Cleveland Clinic, Healthline, thiab ntev - cov kev tshuaj xyuas lub sij hawm soj ntsuam tas li qhia tau hais tias nrog kev saib xyuas kom raug, feem ntau PFM crowns ua tau zoo rau 10-15 xyoo, txawm tias cov hniav tom qab (molars) tuaj yeem hnav sai dua vim muaj kev zom zom ntau dua.
Sib piv nrog lwm cov ntaub ntawv nrov (raws li kev tshawb fawb thiab cov ntaub ntawv tsis ntev los no):
- Zirconia crowns: Cov ciaj sia taus ntau dua 5 xyoos yog qhov sib piv lossis siab dua me ntsis PFM (feem ntau 95–98% vs. nyob ib ncig ntawm 92–97% rau PFM hauv ntau yam kev tshawb fawb). Zirconia muaj lub zog zoo heev, biocompatibility, thiab txhim kho kev zoo nkauj hauv cov qauv niaj hnub no, tab sis cov hom ua ntej tuaj yeem ua rau nkig ntau dua -tam sim no daws tau ntau dua.
- Tag nrho -ceramic crowns: Superior translucency thiab ntuj tsos, tshwj xeeb tshaj yog rau cov hniav pem hauv ntej, tab sis nrog me ntsis siab dua ntawm chipping. Zuag qhia tag nrho lifespan kuj feem ntau ntog nyob rau hauv 10-15 xyoo ntau yam.
PFM tseem muaj zog, tus nqi - kev xaiv zoo rau cov hniav tom qab qhov chaw ruaj khov thiab tom qab yog qhov tseem ceeb.
Yam tseem ceeb cuam tshuam rau PFM Crown Longevity
1. Kev Kho Hniav Hniav & Kev Npaj
- Cov hniav uas tau kho hauv paus kwj dej yog nkig ntau dua; crowns txo qis kev pheej hmoo ntawm pob txha (los ntawm 60% piv rau tsis muaj yas).
- Kev txhaws loj lossis kev lwj loj heev ua rau cov hniav tsis muaj zog- siab- kev npaj tau zoo thiab lub qhov dej zoo- haum lub kaus mom pab rov ua kom muaj zog tom qab zoo.
2. Khoom & Fabrication Zoo
- Tsis zoo marginal haum tuaj yeem ua rau microleakage, ua rau kev lwj tom qab.
- Tsis sib xws porcelain thickness los yog kev sib txuas tsis txaus ua rau muaj feem cuam tshuam rau kev ntxhov siab.
- Noble hlau alloys (piv txwv li, kub-raws li) muab zoo biocompatibility thiab corrosion kuj dua li cov hlau puag.
3. Kev tu qhov ncauj & Kev Coj Txhua Hnub
- Plaque tsub zuj zuj ntawm cov gumline tuaj yeem ua rau cov kab mob pos hniav thiab lwj hauv qab lub kaus mom.
- Hmo ntuj bruxism (cov hniav sib tsoo) ua kom hnav- kev cai hmo ntuj pom zoo.
4. Cov cwj pwm phem phem
Kev tom dej khov, khoom qab zib nyuaj, cwjmem, lossis lwm yam tsis yog -cov khoom noj feem ntau ua rau cov pob txha tawg.
Cov laj thawj vim li cas PFM Crowns Fail
- Porcelain Fracture: Cov txheej plooj (porcelain) txheej txheej chips los yog tawg, tshwj xeeb tshaj yog tias nyias los yog qis zog.
- Recurrent (Secondary) Decay: Kev tu cev tsis zoo tso cai rau cov kab mob nkag mus rau hauv cov npoo npoo.
- Gum Recession & Dark Lines: Cov npoo hlau raug pom zoo li cov pos hniav rov qab, cuam tshuam rau cov tsos mob (ntau pom ntawm cov hniav hauv ntej).
- Cement Failure: Adhesive degradation los yog tsis muaj zog ua rau loosening lub sij hawm.
Yuav Ua Li Cas PFM Crowns Ntev Ntev
1. Txhim kho qhov ncauj huv si
- Txhuam txhuam ob zaug ib hnub nrog cov tshuaj txhuam hniav fluoride thiab siv cov tshuaj txhuam hniav los yog siv cov tshuaj ntxuav hniav nyob ib ncig ntawm cov npoo npoo.
- Tau txais kev ntxuav txhua txhua 6 lub hlis kom tshem tawm cov quav hniav thiab tartar buildup.
2. Tiv thaiv kev nyuaj siab ntawm lub cev
- Tsis txhob zom cov khoom tawv xws li dej khov, txiv ntoo hauv cov plhaub, lossis siv cov hniav ua cov cuab yeej.
- Hnav ib qho kev cai hmo ntuj yog tias koj zom koj cov hniav thaum hmo ntuj.
3. cog lus rau kev kuaj xyuas tsis tu ncua
Mus ntsib koj tus kws kho hniav txhua 6 lub hlis txhawm rau txhawm rau kuaj pom cov kab nrib pleb, xoob, lossis tawg ntxov.
4. Xaiv High-Cov ntaub ntawv zoo & Craftsmanship
- Xaiv rau lub hauv paus hlau zoo rau kev ua haujlwm ntev ntev -.
- Siv digitally fabricated PFM crowns (xws li cov los ntawmADS Dental Laboratory Ltd's CAD/CAM cov txheej txheem), uas muaj qhov ua tau zoo tshaj plaws, cov khoom siv plooj (porcelain) txheej txheej, thiab txo cov kev pheej hmoo ntawm chipping los yog leakage -pab txuas lub neej ntev.
Xaus
PFM crowns yog qhov txhim khu kev qha, tus nqi - kev xaiv kho kom zoo dua qub nrog qhov nruab nrab ntawm lub neej ntawm 5-15 xyoo- thiab cov xwm txheej zoo heev feem ntau dhau ntawm qhov no. Thaum cov ntaub ntawv tshiab xws li zirconia excel nyob rau hauv qee yam kev zoo nkauj thiab ntev - lub sij hawm kev ua tau zoo, PFM tseem tuav tus nqi muaj zog rau cov hniav tom qab vim nws qhov pov thawj ruaj khov thiab pheej yig. Txhawm rau ua kom lub neej ntev ntev, ua qhov tseem ceeb ntawm kev tu lub qhov ncauj zoo, ua tib zoo zom cov cwj pwm, thiab kev saib xyuas zoo ib yam.
Xav txog PFM crowns, los yog twb muaj lawm thiab xav soj ntsuam kev hloov lossis kho? Thov hu rau ADS Dental Laboratory Ltd. Ua tus thawj cojDigital Dental Lab hauv Suav teb, peb tshwj xeeb hauv siab -precision CAD/CAM workflows thiab cov ntaub ntawv hwm kom xa tau ntau dua, ruaj khov kho rau cov kws kho hniav thiab cov neeg mob. Tau txais kev sib tham daws teeb meem digital pub dawb lossis hais lus hnub no-pab koj lub ntsej muag nrog kev ntseeg siab!
