Tooth migration during the transitional dentition.

Posteruptive tooth migration between 6 and 14 years involves both total arch displacement and intra-alveolar tooth movement. Central incisors, canines, and permanent first molars all drift forward within the alveolar bone. The molars, and to a lesser extent the incisors, drift occlusally. With respect to lingual arch contour, lateral movement of molars and canines is negligible.