https://hsdm.harvard.edu/news/new-research-links-periodontitis-treatment-improved-cancer-outcomes
https://dentalsignal.com/what-is-periodontal-disease-and-how-to-prevent-it/
https://www.verywellhealth.com/why-is-my-mouth-so-dry-1059299
https://www.colgate.com/en-us/oral-health/basics/fluoride/what-does-fluoride-do-0316
https://youtu.be/cxAVc4SEXlw?list=PLid94FrDeAX5Pt8OnxeqliBRBeJ_erWxQ
https://www.colgate.com/en-us/oral-health/conditions/dry-mouth/dry-mouth-at-night–the-causes-and-management-tips-?fbclid=IwAR2vTVYpnrS88vB_GA6IXEtI5DsaIjRf019yderzqxwHGyaoz-01gQg6Poc
https://youtu.be/CtpsOTh9UNw
https://youtu.be/S5wpCLnXmMc
https://www.colgate.com/en-us/oral-health/conditions/dry-mouth/ada-05-dry-mouth?fbclid=IwAR2jmLqkKUwAO8WV4xpSy9STa-AyzNt0GAo5qe-VjqAParBx4DgDj9HjAfU
https://www.simplemost.com/10-things-your-dentist-can-tell-about-your-health-just-by-looking-in-your-mouth/?fbclid=IwAR0jwOJH9y-jQ1TG7j5cOvlhyYT1TDL7B6Q9SqZNnWwwS9ICdkTyPoAwivw