This technique (www.invisalign.com) was invented in U.S.A in the early 2000s and is now widespread all over the world.
Treatment with this technique is as follows: the patient uses a series of invisible membranes which are made after high precision impressions are taken. These initial impressions (along with the treatment plan) are sent to Invisalign laboratories for scanning. After a few days, the 3D picture –the so called ClinCheck-is sent electronically. In this 3D picture we can see the future movements of the teeth. In this way, the patient knows before the start of the treatment the final position of his/her teeth. After the orthodontist and the patient agree on the treatment plan, the aligners’ construction begins. The customized membranes must be worn 20-22 hours a day and be changed every two weeks until the teeth are moved to their final positions. The number of aligners needed for each patient is different, depending on the complexity of the case, but usually ranges from 9-18 months for easier cases to 18-36 months for more demanding cases.