2011 https://www.sciencedaily.com/releases/2011/03/110330101038.h...
2017 https://www.independent.co.uk/news/science/damaged-teeth-reg...
2011 https://www.sciencedaily.com/releases/2011/03/110330101038.h...
2017 https://www.independent.co.uk/news/science/damaged-teeth-reg...