Something got me thinking, last time a friend of mine toothpaste got finished, and he forgot to buy one, and so the next day, he has to wake up early morning to go out, and when he realise that there was no paste in the house, he went to the kitchen and follow up salt. I remember those days when people not eve only use salt but they will grind charcoal and use it to brush teeth in the morning. I want to ask, is there really any health benefit to that or is it the lack of cash then to enter a shop and pick a toothpaste that cause people to indulge in that? Then they say it even makes the teeth whiter and heatlthier.

I know charcoal whitens the teeth.