https://www.aarp.org/health/healthy-living/info-2018/healthy-teeth-longer.html?CMP=KNC-DSO-COR-Dental-21458-GOOG-HEALTH-HealthyLiving-HealthyLiving-HealthyTeeth-Phrase-NonBrand&gclid=EAIaIQobChMI59j1yLme-AIVEcCGCh02tQ2uEAMYASAAEgJH0PD_BwE&gclsrc=aw.ds
https://www.verywellhealth.com/top-facts-your-dentist-wants-you-to-know-1059131
https://www.medicalnewstoday.com/articles/241721