Sumita Mitra’s why our restored teeth are so strong and aesthetic

If you have had a broken tooth that has been restored, and that tooth gels perfectly with the adjacent ones, you should probably thank Sumita Mitra. Mitra’s work in 3M helped create the first nanotechnology-based fillings, and these have now been used in over 1 billion tooth restorations worldwide.

from Gadgets Now https://ift.tt/36uQpKn