https://www.oralhealthgroup.com/features/lips-the-forgotten-oral-tissue/
https://hsdm.harvard.edu/news/new-research-links-periodontitis-treatment-improved-cancer-outcomes
https://www.ada.org/publications/ada-news/2023/march/april-marks-oral-cancer-awareness-month
https://consumer.healthday.com/encyclopedia/dental-health-11/misc-dental-problem-news-174/warning-signs-of-oral-cancer-648305.html?xrs=RebelMouse_fb&ts=1643342461&fbclid=IwAR0zRn_K1zCt0N3zx7f9FR5_J4GEt8Zvl4jcgxzBnvWtwAmJRaVHYxcHjtI
https://www.verywellhealth.com/why-is-my-mouth-so-dry-1059299
https://www.medicalnewstoday.com/articles/how-long-do-canker-sores-last
https://www.colgate.com/en-us/oral-health/conditions/dry-mouth/dry-mouth-at-night–the-causes-and-management-tips-?fbclid=IwAR2vTVYpnrS88vB_GA6IXEtI5DsaIjRf019yderzqxwHGyaoz-01gQg6Poc