Amalabhorethri amaningi kanye nemitholampilo okungenani kube nale mpikiswano: ingabe unamathela emjikelezweni wendabuko wobusuku obubodwa, noma utshala imali esithandweni sejubane bese uqala ukushintsha imiqhele yosuku olufanayo? Impendulo ayilula njengoba "ukushesha kungcono njalo" - kodwa futhi akuyona inkimbinkimbi njengoba abanye abathengisi bekwenza kuzwakale. Lesi sihloko sidlula ezinkimbinkimbi zangempela zezokwelapha nezokusebenza, ezisekelwa idatha eqinile.
Ukushisa okuvamile akulona ubuchwepheshe obuphelelwe yisikhathi. Kuyinqubo yokushisa elawulwa kahle lapho i-zirconia ikhuphuka kancane kancane — ngokuvamile i-10–20°C ngomzuzu — ibanjwa ekushiseni okuphezulu, bese yehliswa ngejika lokupholisa elihleliwe. Umjikelezo wonke uthatha amahora angu-8–12 , futhi leso sikhathi eside singesokuhloswa: ukusatshalaliswa kokushisa okuhamba kancane, okufanayo kuvumela amakristalu e-zirconia ukuthi akhule futhi ahlangane ngaphandle kwemingcele yokucindezeleka kwangaphakathi.
Inzuzo iyalinganiswa. Ukusika kwendabuko kunikeza amandla okuguquguquka njalo ebangeni le-1,100–1,200 MPa , yingakho kuhlala kuyinto ezenzakalelayo yamabhuloho amade angemuva nanoma yikuphi ukuvuselelwa lapho i-margin yesakhiwo ingaxoxiswana. Iphinde iphathe cishe yonke i-zirconia efomini emakethe ngaphandle kwemingcele yokuhambisana.
Kwabelabhu abenza ukukhiqiza kweqoqo — ukulayisha ithileyi egcwele ubusuku bonke bese beyiqoqa ekuseni — ukuhlanza okwendabuko kuyinto enhle kakhulu. Isithando sisebenza ngenkathi ilebhu ivaliwe. Lapho ihluleka khona: noma yini ethinta isikhathi.
Ukushisa ngesivinini kungaqeda umjikelezo ogcwele we-zirconia ngemizuzu engama-35-90 , kufaka phakathi ukupholisa. Lelo nani liyiqiniso, kodwa liza nezimo ezintathu ezibaluleke kakhulu esigabeni sokuthenga.
Okokuqala, isithando somlilo kumele sakhiwe ukuze sihambisane nokushisa okusheshayo — okulinganiselwe amazinga okuma afinyelela ku -200°C/min . Okwesibili, i-zirconia ngokwayo kumele ibe yindlela ehambisana nesivinini enohlelo lwe-binder oluguquliwe. Ukusebenzisa ama-blank ajwayelekile ngokushesha kakhulu kukhiqiza ukuqhekeka okuncane kanye nokungahambisani kombala. Okwesithathu, ukunemba kwezinga lokushisa kumele kube kuqinile kunasemijikelezweni yendabuko — ku-200°C/min, ngisho nokuphambuka okuncane kuveza ukwehluka okulinganiselwe kobuningi kanye nomthunzi.
Uma zonke izidingo ezintathu sezihlangatsheziwe, i-speed sintering ihlinzeka nge -1,000–1,150 MPa — ehambisana ngokuphelele nokwamukelwa kwe-ISO 13356 kwama-single crowns, amabhuloho amafushane, kanye nokulungiswa okusekelwa yi-implant.
| Ipharamitha | Ukuhlanza Kwendabuko | Ukusika Isivinini |
|---|---|---|
| Isikhathi somjikelezo | Amahora angu-8–12 | Imizuzu engama-35–90 |
| Amandla okugobeka | 1,100–1,200 MPa | 1,000–1,150 MPa |
| Ubuningi / ubulukhuni | Ireferensi eyisisekelo | Kuqhathaniswa noma kuphakeme kancane |
| Izindleko zemishini | $3,000–6,000 | $8,000–15,000 |
| Iphrofayili yamandla | Ukudonsa okuphansi, okuzinzile | Inani eliphakeme kakhulu / inani eliphansi |
| Ukuhambisana kwezinto ezibonakalayo | Zonke izinto zobumba ze-zirconia/ceramics | Izinto ezilinganiselwe ngesivinini kuphela |
| Ukulingana okusemaphethelweni | Kuyamukeleka ngokwezokwelapha | Kungcono kancane |
| Umthamo weqembu | Inani eliphezulu (iqembu lobusuku bonke) | Amaqoqo amancane aphuthumayo |
| Ukulethwa ngosuku olufanayo | Akunakwenzeka | Icala lokusetshenziswa eliyinhloko |
Imikhiqizo ye-zirconia engenisiwe ephezulu kakhulu — iKatana, i-IPS e.max ZirCAD, i-Aidite, nabanye — yaklanywa ngezinqubo zokusinta ezilinganiswe kahle. Uma uphambuka kuzo, uthola ukushintsha kombala, ukubamba okungafani, noma ukukhanya okungafani nomhlahlandlela wombala. Yilapho izitofu eziningi zesivinini sokuqala zingaphumeleli khona: zingenza i-ramp esheshayo, kodwa azikwazi ukuzivumelanisa ngokuguquguqukayo nokwehluka kwesikhathi sangempela kwesisindo somthwalo, izinga lokushisa elizungezile, noma izici ze-lot engenalutho.
Zombili izithando ze-DNTX Q7 kanye ne-Q56 zinobuchwepheshe be-ARCS obungobomuntu siqu — uhlelo lokulingisa izinga lokushisa lezinto oluthuthukiswe ngokuzimela oluhlanganiswe nendlela yokuphakamisa engenazo izidlidliza elungisa ngokuguquguqukayo ibanga phakathi kwento yokushisa kanye ne-workpiece ngesikhathi sangempela.
Ukutshalwa kwezimali okuvikelayo kakhulu kwamalebhu aphakathi nendawo: isithando somlilo esinemodi emibili njenge-DNTX Q7 noma i-Q56. Imodi yesivinini yama-crown aphuthumayo angawodwa, imodi yendabuko yokukhiqiza inqwaba ubusuku bonke — ucezu olulodwa lwemishini, inhloko eyodwa yokulungisa.