Even though we’ve been brushing our teeth for years, most of us don’t exactly know if they’re doing it properly or not. Just for instance, not many are aware of the fact that an effective brushing session should last about 2 minutes. Do you come close to brushing that long, I seriously don’t think so. Perhaps the toothpaste industry is to be credited for the two-times-a-day brushing rule, which most people aspire today. And those of us, who successfully follow the regime, feel secure in this knowledge. And they have every reason to feel so.