When you don’t have enough room in your jaw for your teeth to fit normally, your teeth can bunch up, overlap and twist, sometimes getting pushed to the front or the back.
Crowded teeth can make it hard to brush and floss well. Then it’s easier for plaque, tartar, and harmful bacterial to build up — and down the line, this can lead to tooth decay and gum disease. Your crowded teeth can also get worse over time.
Yes, @-aligners can fix crowded teeth.