Many feel uncomfortable while laughing because of their problem with yellow teeth. Regular brushing sometimes is not enough for avoiding the problem with stains and yellow color. There are many means for teeth whitening which are effective but can cause painful sensitivity of the teeth and gums.
However, there is one natural way to whiten your teeth up to several shades without damaging them with chemicals:
In a bowl put little amount of baking soda and freshly squeezed lemon juice, stir it until it gets foamed mixture. With clean wool clean your teeth well before use. Apply the mixture and leave it to act for 1 minute and then wash your teeth normally with toothbrush.