Aging-resistant zirconia ceramic for dental restorations. KU Leuven
Zirconia ceramics are strong, tough and wear resistant and are used for orthopaedic implants since quite some time. Despite the susceptibility of zirconia to low temperature degradation ageing, i.e. the transformation of the metastable tetragonal to monoclinic ZrO2-phase in aqueous conditions at 20-250°C, zirconia ceramics are fast introduced for restoring and replacing teeth. So far, the dental community only reported minor shortcomings such as ...