In recent years, aesthetic demands on dentistry by patients have
been increasing annually. It is now a trend for patients to choose bleaching to satisfy aesthetic demands. Bleached teeth cause
changes in the structure of the tooth, which results in changes in the appearance of the enamel layer and it is very difficult to reproduce. Beautiful pearly whites are what receive a lot of admiration. Of all the restorative materials, all-ceramic is advantageous for the aesthetics that the patient desires. Especially zirconia’s high strength of 1100 Mpa brings peace of mind to the dentist and technician. Furthermore, as a means to maximize the strength of zirconia and to prevent fracture, the technician can choose a different approach by keeping the restoration monolithic and cutting back on the facial for aesthetics. This technique gives us the best aesthetics and functionality. However, when the lingual side is covered with zirconia, the pressed ceramics shield the transmission of light, making it difficult to reproduce the translucency. In the case of a small number of prosthesis that are entangled with the central incisor, it is extremely difficult to reproduce the sense of transparency held by the surrounding natural teeth. In this course, the mechanism of bleached teeth and its reproduction method will be explained and demonstrated by Hiroaki Tada, RDT, to easily reproduce the transparency of the incisal area using GC Initial® Zr-FS ceramic and GC Initial™ IQ Lustre Pastes NF.