"Smile is an inexpensive way of enhancing your appearance, attractiveness, as well as increasing your personal influence and achievement"- (Charles Gordy)An attractive smile plays a prominent role in the overall perception of physical attractiveness. The appearance of a smile is influenced by several factors such as the size, shape, position, texture, and color of teeth. Among these, tooth color is one of the most noticeable features and plays a vital role in the esthetic appeal of the smile. Discolored anterior teeth are often perceived as an aesthetic detraction, leading to psychological and social discomfort. Because of the growing desire for beautiful, white teeth and the establishment of esthetic treatment methods, tooth bleaching has become increasingly important in recent years.
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