Desai Dental Care's Dr. Chetna K. Desai touts more than 20 years of tooth-soothing experience, beautifying mouthscapes with advanced brightening technology. The in-office Power Bleach teeth whitening blasts away smile blemishes in about an hour, imbuing dull, stained, tie-dyed, or discolored chompers with an ivory gleam. Dentally adept incisor artists apply a protective gel or rubber shield to gums, and then slather tooth formations with a bleaching agent. Special light beams then bathe bicuspids, inspiring the bleach's peroxide to whiten teeth five to seven shades, cutting through discoloration caused by age, coffee, or tobacco products. Due to their impenetrable, half-robot nature, dental accessories, such as crowns, bridges, and fillings do not bleach.