Nyob rau hauv xyoo tas los no, kev siv zirconia hauv kev kho hniav kho hniav tau txais txiaj ntsig tseem ceeb. Qhov no feem ntau yog vim muaj cov khoom tshwj xeeb ntawm zirconia uas ua rau nws yog cov khoom siv zoo heev rau kev kho hniav prosthetics. Ib qho kev nce qib zoo tshaj plaws hauv kev siv zirconia rau kev kho hniav kho hniav yog kev tsim kho hniav zirconia blocks.
Kev kho hniav zirconia blocks yog tsim los ntawm cov hmoov ntshiab zirconia. Cov hmoov no yog tov nrog stabilizers thiab binders uas tso cai rau kev tsim ib homogenous thiab ruaj khov thaiv. Cov blocks yog ces milled los ua ntau yam duab thiab ntau thiab tsawg uas yog siv nyob rau hauv zus tau tej cov hniav prosthetics xws li crowns thiab txuas hniav.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm kev siv kev kho hniav zirconia blocks yog lawv cov khoom siv zoo tshaj plaws. Zirconia muaj zog flexural siab thiab tawg toughness, ua rau nws tsis yooj yim rau chipping los yog tawg. Yog li ntawd, lawv muaj lub neej ntev dua thiab muab cov txiaj ntsig kev kho mob zoo dua. Tsis tas li ntawd, zirconia yog biocompatible, uas txhais tau tias nws tsis ua rau muaj kev phiv tshwm sim hauv lub cev.
Kev kho hniav zirconia blocks kuj muaj ntau yam thiab pab kom tsim tau cov kev kho hniav zoo nkauj heev. Lawv muaj nyob rau hauv ntau qhov ntxoov ntxoo thiab translucencies uas ze ze rau cov hniav ntuj. Qhov no ua rau lawv zoo tagnrho rau siv nyob rau hauv qhov chaw pom ntawm lub qhov ncauj, xws li cov hniav pem hauv ntej.
Kev siv cov kev kho hniav zirconia blocks tau hloov kho kev lag luam kho hniav. Lawv tsis tau tsuas yog txhim kho qhov zoo ntawm kev kho hniav prosthetics tab sis kuj tau ua cov txheej txheem ntau lawm. Tsis tas li ntawd, lawv tau ua cov kev kho hniav kho hniav kom yooj yim dua vim lawv pheej yig dua lwm yam khoom xws li kub lossis plooj (porcelain).
Hauv kev xaus, kev kho hniav zirconia blocks yog qhov kev ua si-hloov hauv kev lag luam kho hniav. Lawv cov cuab yeej zoo tshaj plaws, cov khoom zoo nkauj, thiab kev pheej yig tau ua rau lawv yog cov khoom siv zoo tagnrho rau kev kho hniav kho hniav. Raws li qhov kev thov rau kev kho hniav zoo nkauj prosthetics tseem loj tuaj, kev siv cov kev kho hniav zirconia blocks yuav tsum nce ntxiv.