Cosmetic Dentistry can refer to anything done to correct imperfections in the appearance of the mouth. Anyone who is unhappy with their smile can have it fixed. The upper teeth show, usually, only when smiling, while the lower teeth remain hidden. This is reversed when talking, with the upper teeth remaining hidden while the lower teeth show. The color, alignment, spacing as well as regularity of the teeth are the characteristics that give the overall appearance. Any of these can be repaired to give a stunning look to the mouth.