ucsdhealthsciences: Moment of ToothIf nothing else, the scanning electron micrograph above of a human tooth should encourage proper oral hygiene. While you’re at it (remember to brush for at least two minutes and don’t overlook those back molars),
ucsdhealthsciences: Moment of ToothIf nothing else, the scanning electron micrograph above of a human tooth should encourage proper oral hygiene. While you’re at it (remember to brush for at least two minutes and don’t overlook those back molars),
