Four out of five dentists can’t be wrong, but that doesn’t mean we all heed their advice.

And while most of us know how important dental hygiene is, not all of us put that knowledge into practice as consistently as we should — brushing twice a day for two minutes, plus flossing, can be easier said than done when you’re hurrying out the door in the morning or dozing off at night. Not feeling your dentist’s judgment — to say nothing of their sharp instruments — every six months is pretty strong motivation to brush for the full two minutes, though.