The use of CAD/CAM dental impression material has been on the rise currently. Digital scanning provide comfort for patients because it takes less chair-time than conventional impression. This increases the efficiency and productivity in the office. The content of TiO₂ is important for the impression materials to ensure the scannability. Conventional dental impression material contains about 1% TiO₂, but CAD/CAM impression materials should contain 10% or more for a clear scanning without noise. As the content of TiO₂ continues to increase, physical property has changed in setting time, strength and etc. Therefore, the control of TiO₂ content is important for good scanning without changing the physical properties.