William Aroldi
LABORATORY ORTHODONTIC, PROSTHETIC
mail. wlm75@libero.it
tel. 349-1417013
I.T.C.A 01033322
via Cavalieri di Vittorio Veneto,8 46010 Redondesco (MN)
(Laboratory)
ZIRCONIA:
.La correct definition for the material and' zirconium (ZrO2) dioxide. Zirconia and' the English definition of zirconium dioxide.
The zirconium in wafers fresabili and' had composed since 95% of zirconium dioxide and from 3/5% of doping that is':
*oxide of Ittrio
*oxide of kick
*oxide of alumina
*impurity' for the 0,5%
*these materials stabilize the zirconia., otherwise it would not be usable in dental field.
An important study clinical party in 2005, has examined the longevity' clinic of crowns (back) in zirconia-ceramics comparing her with crowns in metal-ceramics.The result of this study and' is introduced 2010 IADR to the scientific congress to Barcellona from the prof. Markus B.Blatz.The result was that the survival of the devices in zirconia and' comparable
