No more needles at the dentist—just a tiny electric current instead
Monday, January 18, 2016 - 12:50
in Physics & Chemistry
If you're scared of the dentist's needles you're not alone – but new research means you might not have to put off that appointment again. A study published in Colloids and Surfaces B: Biointerfaces reveals how the dentist could give you anesthetic using a tiny electric current instead of a needle.