How does toothpaste take the smell away?

Try brushing your teeth. Well, I would smell the toothpaste before you stick it into your mouth because with a question like this, I would assume you have never brushed your teeth, and your mouth stinks... tainting the MINTY FRESH smell of the toothpaste. Or you could have damaged your olfactory and taste system by smoking too many cigarettes, or snorting cocaine, which isn't unlikely, and the taste of the toothpaste does not soothe or smell refreshing to you in any way. I am sorry for you.