1,9. Rejection calculated based on cumulative submissions of PVS and iTero scans from Jan 2017 to June 2018. data on file at Align Technology, as of July 2018. 
2,4. Compared to aligners made from single layer 0.030 inch (Ex30) material. aligners made from SmartTrack material provide better fit, better comfort, and are easier to insert and remove compared to aligners made from single layer 0.030 inch (Ex30) material. 
3. Gu, J et al. Evaluation of Invisalign Treatment effectiveness and efficiency compared with conventional fixed appliances using the Peer Assessment Rating index. Am J Orthod Dentofacial Orthop February 2017, 151 259-66. Buschang, P et al Comparative time efficiency of aligner therapy and conventional edgewise braces. Angle Orthodontist, Vol 84, No 3, 2014.
5. Data on file at Align Technology, as of October 2020.
6. Compared to aligners made from single layer 0.030 inch (Ex30) material.
7. Some Providers still take physical impressions using soft putty. These impressions are then scanned by Invisalign technicians to create the 3D image for use in the ClinCheck software and manufacturing aligners.
8. Data on file at Align Technology, as of November 7th, 2018.
10. Data on file at Align Technology, as of October 12, 2017.
11. With weekly aligner changes, compared with two-week aligner changes.