zirconia-reinforced lithium silicate ceramic for an anterior rehabilitation with single metal-free
crowns. The maxillary-central incisor teeth crowns were made by zirconium-reinforced
lithium silicate and covered with porcelain were obtained with a digital impression with the
intra-oral scanner of the CEREC system as a basis for virtual design, as well as a laminate
for the left lateral maxillary incisor, based on a" double scanning" technique. Lithium silicate …