How many primary (deciduous) and permanent teeth are typically present in the mouth of an 8-year-old in mixed dentition?

By around age 8, a child is in mixed dentition with roughly half primary and half permanent teeth present (approximately 12 and 12), as incisors and first molars have erupted.Other options: All-primary or all-permanent counts describe younger or older ages; 16/16 is not the typical mixed-dentition count at age 8.Key exam takeaway: Around age 8 = mixed dentition, approximately 12 primary and 12 permanent teeth.