Abstract:Zirconia has been widely used in the field of prosthodontics owe to its good mechanical properties and biocompatibility. However,due to its low translucency and grey appearance, the traditional zirconia still lacks in aesthetic performance. With the development of material technology, researchers has developed new ultra-translucent zirconia material which processes both the good characteristics of traditional zirconia and extraordinary translucency by improving sintering process and other methods. The material has great potential in aesthetic dentistry. In this paper, the properties of ultra-translucent zirconia such as translucency, mechanical properties, aging behaviors were reviewed.