Invisalign will not move the deciduous teeth, but we use them to hold the Invisalign trays in place so that we can create proper skeletal movement. With our new Invisalign product, first of all, we can widen the arch which was not possible before. Now we can replace an expander (also known as a palate expander) and we use Invisalign clear alignment therapy to get the space we need to put the new teeth in place.