Braces help align a person’s teeth and bite. This orthodontic treatment helps teeth gradually move back into the correct position over time. Metal braces use stainless steel bands, brackets and wires to gently align crooked or overcrowded teeth. They require periodic tightening so the pressure can gradually straighten your teeth and align your jaw as needed. While metal braces still remain quite common, other treatment options for teeth straightening are growing increasingly popular, including ceramic braces and clear aligners like Invisalign.