Clear aligners are a type of orthodontic treatment used to straighten teeth. They are made from a transparent plastic material and are custom-fitted to each patient's mouth. Unlike traditional braces, which use metal brackets and wires, clear aligners are removable and nearly invisible, making them a popular choice for adults and teens seeking a discreet option for improving their smile. Patients typically wear a series of aligners, changing to a new set every one to two weeks. Each aligner gradually shifts the teeth into the desired position. Treatment duration varies, but it usually lasts between six months to two years, depending on the complexity of the case.