1  https://www.healthline.com/health/dental-and-oral-health/crooked-teeth#causes

2 https://www.aaoinfo.org/blog/does-my-child-need-to-wait-to-see-an-orthodontist/

3 https://www.aaoinfo.org/blog/why-do-straight-teeth-matter/

4  https://www.aaoinfo.org/blog/why-do-straight-teeth-matter/

5  https://www.aaoinfo.org/blog/7-common-bite-problems/

6  https://www.aaoinfo.org/blog/7-common-bite-problems/

7  https://www.healthline.com/health/do-braces-hurt#tightening

8  https://orthodonticsaustralia.org.au/the-history-of-orthodontics-from-ancient-braces-to-invisalign/

9 Data on file at Align Technology, as of March 31, 2023

10 https://www.aaoinfo.org/blog/why-do-straight-teeth-matter/

11  https://www.aaoinfo.org/blog/braces-vs-clear-aligners/

12 In a study by Miller et al, with adults measuring pain in the first week of treatment.  Kevin Miller et al.  “A comparison of treatment impacts between Invisalign aligner and fixed appliance therapy during the first week of treatment.”  American Journal of Orthodontics and Dentofacial Orthopedics.  Volume 131, Issue 3, pp. 302. e1-302.e9, March 2007.

13 https://www.aaoinfo.org/wp-content/uploads/2020/03/AAO_HandlingOrthoIssuesAtHome_2020.pdf

14 Compared to Invisalign aligners previously made from single-layer (EX30) material.

15 https://www.healthline.com/health/do-i-need-braces#seeking-medical-help

16 Compared to Invisalign aligners previously made from single-layer (EX30) material.