This study aimed to discuss some inborn and acquired changes in the oral cavity young children under three years of age. Based on current literature, eruption cyst, Riga-Fede disease, natal neonatal teeth, congenital epulis, Epstein pearls, Bohn’s nodules, gingival cyst newborns have been described. The symptoms, clinical presentation, histological features these changes, their epidemiology, pr...