https://www.health.harvard.edu/healthy-aging-and-longevity/lost-a-tooth-what-to-know-about-dental-implants
https://www.drbicuspid.com/dental-hygiene/oral-systemic-link/cardiovascular/article/15830231/gum-disease-germ-may-harden-heart-valves
https://www.colgate.com/en-us/oral-health/gum-disease/what-are-the-stages-of-gum-disease
https://today.uconn.edu/2016/01/uconn-dentist-leads-first-clinical-practice-guidelines-calling-for-lifelong-maintenance-of-restored-teeth/
https://dentistry.uic.edu/news-stories/the-surprising-connections-between-oral-health-and-well-being/
