Zirconia Bioceramics as All-ceramics Crowns Material: a Review
نویسندگان
چکیده
Zirconia (ZrO 2 ), known as a kind of bioceramics widely applied in prosthodontics, is considered as a promising alternative to conventional bioceramics owing to its desirable mechanical strength, toughness, wear resistance, corrosion resistance, biocompatibility etc. However, the development of zirconia is hindered due to its instability in long-term clinical observations such as the cracking (chipping) of veneering porcelain and deterioration of mechanical properties of zirconia dental crowns under intraoral condition. The aim of this study is to review the development and actuality of ZrO 2 in prosthodontics. In addition, stability problems in commercial zirconia crowns are discussed in detail and the potential solution has been proposed. dacWTa aTcWTPdcWabn]VX]VfaZbP]S TabTRcXeTWPbP[b QTT] dcUafPaS
منابع مشابه
veneering external layer of the structure. Delamination and chipping of veneering porcelain from the underlying ceramic
CAD/CAM (computer aided design/computer aided manufacturing) processing or zirconia frameworks and overpressing of the veneer are modern methods available to achieve all-ceramic bilayered crowns. Besides materials strength, other factors affect restorations’ clinical longevity, such as prosthesis design and technological steps. The aim of the study is to display alternative modern technologies ...
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