Avendaño Arenas, Alejandro, Carlos Astorga Gallardo, and Verónica Cabezas Osorio. 2021. “Selection of Tooth Colour Using Spectrophotometry and a Visual Method. A Literature Review.”. Journal of Oral Research, no. 1 (February), 1-4. https://doi.org/10.17126/joralres.2021.041.