Dental braces move teeth by applying low constant gentle forces on teeth. This has to be done slowly or the teeth and their supporting gum and jaw bones will be damaged. That is why orthodontic treatment takes between one to two years. Orthodontists by virtue of their extensive training, are skilled in applying precise calibrated constant forces to the teeth. This will allow the orthodontist to move teeth precisely into preplanned positions so as to improve teeth alignment and bite.