HA HA, good one lol. Look folks, at least once a day, and the dentist said the most important time for brushing your teeth is before bed... so you know it will be twice a day because nobody starts their day with a dirty mouth peewwwweee. lol I'm not a big Crest brand fan, but they got some cool new products out that guarantee results. If you want sparlkes and whitenss, baking soda and peroxide will do the trick. You may be sensitive to it, so beware. Remember, flouride is important. The USA has this in the drinking water, not sure about other countries, so check on that as a supplement for your teeth.
You must brush your teeth twice a day that will keep you free from germs!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!