“…Concerning the diminished growth of the intertuberosity distance, it can be probably ascribed to the wearing of the plate, which holds the palate off from the outward pull of the clefted palatal muscles. Moreover, in contrast to the frontal side of the plate, which is grinded away at least every three weeks, the tuber side was left unchanged during this period (Hotz and Gnoinski, 1976). Additionally, a positive growth velocity in transverse width of the premaxilla was observed during the same period, while growth velocity of the premaxilla depth was less and even negative after lip closure.…”