Ayizizo zonke iipowder ze-zirconia ezithengiswayo ezifanayo.Umahluko phakathi kweemveliso kwisayizi yengqolowa kunye nezongezo zilawula kakhulu amandla e-zirconia block material, ukuzinza kwexesha elide, kunye nokuguquguquka.
1. Ngaphezu koko, iinkqubo ezahlukeneyo apho i-zirconia yamazinyo powders yenziwa kwiibhloko ze-zirconia zokugaya zichaphazela kakhulu umgangatho wemveliso yokugqibela.I-unidirectional axial pressing idala i-milling zirconia block shape echanekileyo kakhulu kodwa ayinakho ukuhambelana kwezinto kwaye ngoko ayifanelekanga ukubuyisela okukhulu.
2. Ngakolunye uhlangothi, ukucinezela kwe-isostatic ebandayo (CIP) isebenzisa i-medium medium, njengamanzi, ukufaka uxinzelelo ngokulinganayo kuwo wonke amacala kwi-zirconia powder efakwe kwi-mold ukugcina imilo yayo.
3. Uxinzelelo oluphezulu kakhulu olubandakanyekayo kunye ne-CIP lunciphisa kwaye lususe i-voids kwi-powder ukunyusa ubuninzi bezinto eziphathekayo kunye nokuvelisa ibhloko ye-zirconia eluhlaza (engafakwanga) kunye ne-homogeneity egqwesileyo kuyo yonke into.Ibhloko ye-zirconia ye-green-state ke i-pre-sintered ukuze ivumele ukuba ifakwe ngokulula kwaye iqhutywe yi-technician.Inyathelo lokugqibela lokuvelisa libandakanya ukucwilisa i-zirconia kumaqondo aphezulu kakhulu (1350 ° C ukuya kwi-1500 ° C) apho ukubuyiselwa kokugqibela kuqinisa kwaye kuyancipha ngokulandelelana nge-20% ukuya kwi-25% ukufezekisa amandla afunwayo kunye neempawu ezibonakalayo.
Izizukulwana zokuqala zezixhobo zokugaya i-CIP zirconia eziphezulu zakhokelela ekubuyiselweni kwe-monochromatic kunye ne-densely opaque ebonisa i-esthetics elinganiselweyo ngaphandle kokuba ibekwe.Nangona kunjalo, kwisithuba seminyaka emi-5 edlulileyo, ukuphinda-phinda okutsha kwemathiriyeli yebhloko ye-zirconia iye yavela kwiibhloko ze-zirconia zokusila ezityekele kwicala eliphakamileyo lokuguquguquka kunye nebhloko ye-zirconia enomthunzi wangaphambili okanye iibhloko ze-zirconia ezininzi ezandisa kakhulu iziphumo zobuhle ngelixa zinciphisa iinkqubo zemveliso.Inzuzo enkulu kwezi zixhobo eziphezulu ze-translucency kukuba zifuna ukunciphisa ngaphantsi kwe-monolithic glass-ceramic restorations kwaye zinobubele kwi-dentition yendalo echasayo.
Kulo nyaka uphelileyo, ukuqulunqwa okutsha kweebhloko zokugaya i-zirconia kubandakanye ezo zinokufakwa kwi-sintered nje ngeeyure ezi-2.Njengomkhiqizi webhloko ye-zirconia ephezulu e-china, ibhloko ye-zirconia yaseYucera ifikelela ngokupheleleyo le mfuneko ngenkqubo yokuvelisa ingentla, enokuthi ifakwe ngokukhawuleza kwiiyure ze-2 kwimeko engxamisekileyo, ngaphantsi kweeyunithi ezi-3 zesithsaba se-zirconia.Ibhloko ye-zirconia ene-preshaded kunye ne-multilayer zirconia block ngokufanelekileyo igcina ixesha lochwephesha wamazinyo kwimibala efayo, ilungele ukubuyiswa kwe-span enkulu.
Ungayithenga phi ibhloko ye-zirconia yamazinyo?Ngokuqinisekileyo Yucera, wamkelekile uqhagamshelane nathi.
Ixesha lokuposa: Jun-17-2021