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
http://www.everydayhealth.com/oral-head-and-neck-cancer/dentures-and-oral-cancer.aspx
http://blog.doctoroz.com/you-wanted-to-know/you-wanted-to-know-canker-sores