Invisalign is the best alternative option to align teeth without metals in mouth. These are clear plates that are designed to deliver the required force to align the teeth. These are CAD/CAM designed under the supervision of the certified orthodontist. This is best suitable for people who cannot visit the dentist every 6-8 weeks and foreign patients who are in town for a shorter period of time. The multiple clear plates with the changing chart will be given to the patient as a kit. The only disadvantage of this method is that the result of the treatment is in the hands of the patient (How long they wear the plates and how they follow the changing chart).