Easy Teeth Whitening Method       Materials:   3 Drops Apple Cider Vinegar   1 dessertspoon of baking soda   1 teaspoon salt   Preparation and application:   Take the salt and baking soda into the tea plate and mix well.   Add apple cider vinegar to the mixture.   Dip the toothbrush into the mixture and apply it to your teeth.   Brush for 2 minutes.   Rinse mouth with plenty of water.   NOTE:   Do this method, which you can easily prepare at home, once a day for 1 week.   With this method, which shows…