T. Phayuha, P. . . Chanatapaporn, T. Sookto, and S. Puasiri, “Effect of Nano-Titanium Dioxide on the Color Stability and Mechanical Properties of Factor II A-103 Compare with Multisil-Epithetics Maxillofacial Silicone Elastomer”, Khon Kaen Dent J, vol. 24, no. 1, pp. 28–40, Mar. 2021.