 This study investigated the effects of porosity on the formation of calcium-phosphate crystal structures during the sintering process. It was found that the presence of pores affected the growth patterns of calcium-phosphate crystals, while the amount of porosity did not significantly influence the type of crystal structure formed. This article was authored by Erika Lorena Rosario-Alzate, Miguel Angel Zapata-Pernet, Duvenvago Ortiz, and others.