Before your treatment begins, our team will show you a range of different tooth shades and allow you to select your desired shade of white. We can also recommend one or more shades for you that will lighten your smile beautifully yet still look very natural. KöR bleaching can work well for patients who just want to brighten their smiles, but it is also very effective for patients who want to drastically change the color of their teeth. It has even been shown to improve the appearance of severely discolored teeth and teeth that have been stained by tetracycline.