Zirconia

Isithsaba se -Metal-ceramic zisetyenziswe kwintsebenzo yamazinyo ixesha elide kwaye ngokuphumelelayo. Bomelele, kodwa banokungabikho kwemithintelo ngokwemvelaphi. Impembelelo yezinyo eziphilayo idalwa kuphela, kungakhathaliseki ukuba ikhethiweyo yecaram ikhethiweyo. Oku kuchazwa yinyaniso yokuba isitya sesakhelo sinombala wayo, akunakwenzeka njalo ukuyiguqula ngokupheleleyo. Olunye utyalo lwama-prostheses anjalo luyiphumo elibi lensimbi kwi-gum. Izithsaba ze-ceramic ezipheleleyo zikhululekile kule miqobo, kodwa zihlala zingapheli kangangoko kunezithsaba ezinezakhiwo zetsimbi.

Kwamanje amazinyo, xa ukhetha izinto eziphathekayo kwi-prosthetics, kungekhona nje kuphela izinto ezisebenzayo kodwa nezakhiwo ze-esthétique ziyaqwalaselwa. Zirconia , Eyasetyenziswa kwi-prosthetics kwindlela yezokwelapha ukususela ngo-1969, isetyenziswa ngokuphindaphindiweyo ukwenza amazinyo. Ngamanye amaxesha, ungasebenzisi igama elichanekileyo lemichiza, le nto ibizwa ngokuba yi-zirconium kuphela. Kwamazinyo, ngokuqhelekileyo isetyenziselwa ukwenza isithsaba sezintloko zamathanga.

Amakhanda aneesakhelo se-zirconia, anokukwazi ukuhambisa ukukhanya, ngokuthelekiswa nokuguqulwa kwamazinyo ezendalo, ngoko kukhangeleka ngokwemvelo kwaye akufani nazinyo zemvelo. Ngexesha elifanayo banamandla afana nokuqina kwezithsaba ze-metal-ceramic.

Xa kuveliswa amazinyo, isiseko sesithsaba siyancibilika. Iintsika ezenziwe nge-zirconia zodwa. I-scanner laser igqiba umlo wesithsaba esizayo, idatha iqhutywe yinkqubo yekhompyutheni, kunye nekhompyutheni iklanyelwe imodeli yesithsaba. Emva koko umatshini okhethekileyo, ngokuhambelana nenkqubo yekhompyutheni echaziweyo, ubonakalisa iqela elilodwa le-zirconia. Isithsaba esiphumelayo asikho kuphela ukuchaneka okuphezulu, kodwa kunika nebonakalayo engabonakaliyo.

Kuze kube kutshanje, izithsaba ezenziwe ngezixhobo zeramic zafakwa kuphela kumazinyo angaphambili, oko kukuthi, ukusetyenziswa kwabo kubangelwa, kunoko, ngokubaluleka kwezinto zobugcisa kunokusetyenziswa kwesenzo. Ukusetyenziswa kwe-zirconia akukho mingcele. Yifanele i-prosthetics yamazinyo angaphambili kunye nokuhlafuna, kwaye idibanise ngokufanelekileyo kunye nezimpembelelo. Ukusebenzisa le teknoloji, yenza izithsaba ezingatshatanga kunye neebhanji. I-Zirconium dioxide ingu-hypoallergenic kwaye iyilungelelaniso ngokumalunga nomzimba womzimba, ngoko ke ingasetyenziselwa i-prosthetics ngisho nasezigulini ezijongene nokuphendula. Ngokwezinga le-bioinertity, lidlula negolide.

I-Zirconia inezixhobo eziphezulu zokushushumbisa ukushisa, ngoko ke izithsaba zikhusela amazinyo ukusuka kutshintsho olushushu. Olu lusindiso lwangempela kulawo gulane anamazinyo azivala kwiindawo ezibandayo nokutya.

Isalathisi sesincinci kakhulu, ubukhulu bayo buyi-0.4 mm kuphela. Ngako oko, ukukhululeka koyilo lwe-denture kunika ngokukhawuleza ukulungelelaniswa "kwamazinyo amatsha". Ukongezelela, isakhelo se-zirconia, ngokungafani nesinyithi, asiyi kuguqulwa ngexesha. IiCeramics ezicwangciselwe ngokukodwa ezi njongo kwaye zinokubakho ukukhanya okufanayo okusetshenziselwa ukukhahlela kwesikimu.

Abantu abaninzi baqhelana noloyiko lokonakalisa isithsaba sezinyo xa besitya ukutya okunzima. I-Zirconium dioxide iya kuvumela ukulahla ukuxhalabisa ngonaphakade. Ukuba i-microcrack ivela, izinto ezizimeleyo zibuyisela ngokuzimeleyo isakhiwo sayo kwinqanaba le-molecular.

Xa i- denture kunye neesithsaba zombini kunye ne-cermet, i-black rim ibonakala ihlala kwindawo yegama. Amakhanda aneesakhelo se-zirconium dioxide, nangona esebenzise ixesha elide, angabangeli naluphi utshintsho kwizinsini.