3 ms·
Nope, it is to make sure you do a "good job" brushing. Increasing time increases plaque removal. http://skeptics.stackexchange.com/questions/6479/do-i-have-to-
by aestra 13y ago
Nope, it is to make sure you do a "good job" brushing. Increasing time increases plaque removal.
http://skeptics.stackexchange.com/questions/6479/do-i-have-to-brush-my-teeth-at-least-3-minutes-each-time http://skeptics.stackexchange.com/questions/6479/do-i-have-t...