Photo Credit: On Pixabay. CC0 license For people who want a smile that is brighter, the process of tooth whitening can be easily administered. Tooth whitening can reduce staining and discoloration and ultimately grant a patient a whiter and brighter set of teeth. But how much really can your teeth become whiter? Some tooth whitening products claim that your teeth can become nine shades whiter. This is exaggerating. A whitening of two or three shades is more possible and can…