Rahmat Hidayat, and Helmi Fatchurrahman. 2021. “The Effect of Silica Dioxide (SiO2) Nanoparticle Coating and Duration of Coffee Immersion on Discoloration of Thermoplastic Nylon Denture Base”. DENTA JURNAL KEDOKTERAN GIGI 14 (1):38-43. https://doi.org/10.30649/denta.v14i1.6.