https://www.mouthhealthy.org/en/az-topics/e/dietary-acids-and-your-teeth
http://www.dentalnews.com/2015/06/12/tooth-surface-loss-dental-erosion/
https://vimeo.com/292993796
http://www.checkdent.com/en/videos/what-is-a-dental-bridge-37.html
https://www.verywell.com/why-you-should-consider-all-on-4-dental-implant-treatment-1059328
http://www.checkdent.com/en/videos/what-are-dental-veneers-207.html
https://en.wikipedia.org/wiki/Human_tooth