Orthodontic treatment is a way of straightening or moving teeth, to improve the appearance of the teeth and how they work. It can also help to look after the long-term health of your teeth, gums and jaw joints, by spreading the biting pressure over all your teeth. How long will it take for orthodontic treatment? The length of your treatment is determined by many factors, including the severity of your alignment issue, your age, the health of your teeth, and the specific orthodontic procedure you need to undergo. Nevertheless, typical treatment usually takes between 12 and 36 months.