https://medicalxpress.com/news/2021-04-good-dental-health-heart-infection.html
https://www.phdental.com/oral-health-news/2021/march/habits-that-are-harmful-to-your-teeth/
https://www.washingtonpost.com/lifestyle/wellness/dental-care-pandemic-stress-teeth/2021/06/16/348d3576-cd5a-11eb-8cd2-4e95230cfac2_story.html?fbclid=IwAR1g9fFHP_Oqy0F6zbn5VscGeo9z2608FUycPpQtjGRZOXe2Ldzvw3hB-98
https://www.huffpost.com/entry/what-your-gums-are-trying-to-tell-you_n_5aa91d77e4b0f7a689ce31cd
https://www.everydayhealth.com/hs/healthy-teeth-guide/enamel-erosion/
https://www.usnews.com/news/health-news/articles/2021-02-09/add-gum-disease-to-list-of-risk-factors-for-severe-covid-19?src=usn_fb&fbclid=IwAR0G8g6i-93_ZURnvuvjZOX7xv011VpIfG7ydQDF193jJe2KJQPs4Bnr7PI
https://youtu.be/FXfe7OCiFxI
https://dentalsignal.com/what-is-periodontal-disease-and-how-to-prevent-it/
https://www.ada.org/en/publications/ada-news/2020-archive/august/ada-respectfully-yet-strongly-disagrees-with-who-guidance-recommending-delay-of-dental-care#