The Intact® Youth Mouthguard is recommended for athletes who are in primary and mixed dentition. Given all the pertinent information (i.e. sequence of exfoliation, type of orthodontic movement being accomplished) the mouthguards can be modified to allow for these changes. Because children’s arches continue to change, it is necessary to have a guard that will provide an adequate amount of retention and protection, yet is inexpensive enough to be replaced throughout growth. This guard is usually 3-4 mm in thickness.