1 https://www.aaoinfo.org/blog/parent-s-guide-post/glossary-of-terms/
2 https://www.cdc.gov/oralhealth/conditions/periodontal-disease.html#:~:text=47.2%25%20of%20adults%20aged%2030,and%20older%20have%20periodontal%20disease.
https://www.aaoinfo.org/blog/why-do-straight-teeth-matter/ 
4 https://www.healthnavigator.org.nz/health-a-z/g/gingivitis/
5 https://aaoinfo.org/blog/parent-s-guide-post/what-parents-should-look-for/
6 https://www.aaoinfo.org/blog/7-common-bite-problems/
7 https://www.aaoinfo.org/blog/7-common-bite-problems/
8 https://www.aaoinfo.org/blog/why-do-straight-teeth-matter/
9 https://www.aaoinfo.org/blog/why-do-straight-teeth-matter/