Penggunaan Mahkota All Ceramic Zirconia pada Gigi Anterior dengan Gigitan Dalam dan Bayangan Hitam pada Dentin

Abstract

As ceramics materials for dentistry evolve and patients demand for esthetic restorations increases, practitioners must keep up with science as well as demand. Historically, strength concerns compromised some of the beauty of ceramics crown.Because of the relatively low tensile strength and brittleness of the ceramics, it has been generally fused to metal a substrate to increase resistance to fracture. No all-ceramics restoration has been shown to have a life span equivalent to that of metal-ceramic restorations. However, this metal base can affect this esthetics by decreasing the light transmission and creating metal ion discolorations. However, all ceramic systems are not all the same. Zirconia-ceramics crowns are the strongest all ceramic system and may provide improved esthetic result compared with metal-ceramic crowns. Ceramics with high strength tend to be more opaque and pose a challenge when trying to match natural tooth color, but they can mask discoloration when present, especially on anterior teeth. Based of the advantages of this nature, all ceramic zirconia is ideal when used in patients with damage to the anterior teeth with the deep bite and black shadow of dentine.