Invisalign First is designed for children aged 6 to 10, while Invisalign Teen is for older children. Both can treat simple to difficult teeth straightening issues in children, including crowding, spacing and narrow dental arches. In addition, Invisalign is removable for easier hygiene management, making it easier for growing children to brush and floss!   Kids’ after-school activities won’t be affected, and they can remain active in sports like ballet, cricket, soccer, rugby and just about any other sport. In addition, we can order, at no charge, an optional compliance indicator dot. This helps you check your kids wearing time.