MTA (Mineral Trioxide Aggregate) is composed of the ingredients of Portland cement and has been used as root and pulp treatment materials. It is not easy to control contamination. In order solve the issues, Sukgyung AT provides synthetic cement powder of which ingredients are tricalcium silicate (C3S), dicalcium silicate (C2S), tricalcium aluminate (C3A), calcium sulfate dehydrate (CaSO₄ ·1/2H₂O, gypsum), and ytterbium oxide (Yb₂O₃) which is a special ingredient for radiopacity. The radiopaque cement powder and its single ingredients are all available to supply in the market so that customers can combine for their own formulations by themselves.