http://www.dentistryiq.com/articles/2017/02/the-surprising-link-between-periodontal-disease-and-heart-health-what-dental-professionals-need-to-know.html
https://youtu.be/3SwYRfMc53U
https://www.tcdentalpros.com/before-and-after-photos/
https://www.bing.com/videos/search?q=periodontal+disease+video&qpvt=periodontal+disease+video&view=detail&mid=6309824462C735AE4E8F6309824462C735AE4E8F&&FORM=VDRVRV
https://www.mayoclinic.org/healthy-lifestyle/adult-health/in-depth/dental/art-20047475
http://www.deardoctor.com/dental-videos/
http://www.colgate.com/en-us/oral-health/life-stages/adult-oral-care/looking-after-your-teeth-five-new-years-resolutions-for-a-healthier-mouth-1214
https://www.livestrong.com/article/529504-is-apple-cider-vinegar-bad-for-tooth-enamel/
https://www.sciencedaily.com/releases/2015/10/151021115120.htm
https://www.deltadentalins.com/oral_health/holiday-sweets.html