How old is this technology?
In 1945, Dr. H.D. Kesling envisioned that one day, modern technology would enable the use of a series of tooth positioners to produce the kinds of movements required for comprehensive orthodontic treatment. Technology has made this vision a reality. Using advanced computer technology, Align crafted Invisalign, a series of customized clear appliances called "aligners." Each aligner is worn sequentially by the patient to produce extensive tooth movements in both upper and lower arches.
How does Invisalign effectively move teeth?
Like brackets and arch wires are to braces, Invisalign aligners move teeth through appropriate placement of controlled force on the teeth. The principal difference is that Invisalign not only controls forces, but also controls the timing of the force application. At each stage, only certain teeth are allowed to move, and these movements are determined by the orthodontic treatment plan for that particular stage. This results in an efficient force delivery system.