Amelogenesis imperfecta (AI) is a serious developmental defect of the enamel with a heterogeneous etiology and a wide variety of symptoms that affect both primary and permanent dentition. Pacients with AI have unaesthetic teeth, more sensitive and mainly less functioning and primarily or secondarily decreased occlusal vertical dimensions.The aim of this report is to give information about the time - proven possibilities of a prosthetic treatment using glazed zirconia copings for a temporary rehabilitation in the period of mixed dentition.