Dab tsi ua rau tsis xis nyob hauv Zirconia Crowns
Mar 25, 2022
In this article YUAV UA LI CAS THIAJ LI QHOV CHAW-TSHIAB NTAWM ZIRCONIA CROWNS, peb txheeb xyuas yuav ua li cas los daws qhov teeb meem sib dhos ntawm zirconia crowns, thiab sab laug saib ua ntej ntawm tsab xov xwm no. Yog li hauv tsab xov xwm no, peb tsom mus rau kev tshuaj xyuas qhov ua rau tsis xis nyob hauv zirconia crowns thiab peb txoj hauv kev tshem tawm phosphate pawg.
Dab tsi tuaj yeem ua rau mob -Fitting Zirconia Crowns?
l Kev kho hniav yas tau maj.
When crowns are rushed, errors occur, such as incorrect margins.There are gaps in the edge bonding, and saliva seeps into the crown, which can cause gum decay.
l Crown tsis cemented zoo.
Hauv qhov no, zoo ib yam li thawj zaug, tus kws kho hniav yuav tsum ua tib zoo tshuaj xyuas cov npoo ntawm lub hau kom tsis txhob ua yuam kev thaum lub sij hawm sib txuas. Yog hais tias qaub ncaug los yog kab mob nkag mus rau hauv lub kaus mom, raws li saum toj no, muaj feem ntau kis tau tus mob.
l Kev xav tau questionable.
Cov hnab ris huab cua, luag lossis rub cov cim, cov ntaub ntawv tsis txaus ntseeg, cov kev xav tsis raug thiab cov khoom siv tsis zoo yuav cuam tshuam rau qhov zoo ntawm qhov kev xav.
l Kev npaj anomalies.
Peb Txoj Kev Tshem Tawm Phosphate Pawg
n Sandblasting.
Although 50 micron diameter alumina is sometimes not recommended for sandblasting interior surfaces, most manufacturers do recommend very light blasting of interior surfaces at low pressure. Be sure to consult the manufacturer's recommendations before trying this method.
n Sodium hypochlorite.
Lub intaglio ntawm lub crown yog so nrog gauze soaked nyob rau hauv 5 feem pua ntawm sodium hypochlorite los yog ib hydrogen peroxide, ces lub restoration yog tshem tawm los ntawm yaug nrog dej thiab cua- kom qhuav.
n Ivoclean.
When building a digital image of the patient's teeth, any irregularities are removed because milled restorations have smooth surfaces inside that will not fit irregularities or undercuts. Typically, a die spacer is used on conventional models, which creates a space of about 50-100 microns. When making zirconia restorations, ask your clinician to ensure that the computer program is set up to create a good margin while specifying the size of the space between the appropriate surface and the preparation. This simple step replicates the function of a traditional mold spacer and will prevent the zirconia crown from rocking on the face-lingual side.
