Whitening Products Sold in Stores Cannot Whiten Deeply Stained Teeth
Your tooth enamel has microscopic pores and textures on the surface that can trap dark particles from the foods and beverages you consume. If they're not removed in short order, they will gradually start to penetrate the tooth enamel. Sometimes you can prevent this from happening by using whitening toothpaste or whitening strips. Using whitening toothpaste is a popular method... read more »