A winning smile can light up a room, as opposed to a losing smile, which can barely power a book lamp. Flash high beams with this Groupon.

$129 for Zoom Teeth-Whitening Treatment ($600 Value)

All three of the Zoom whitening treatments take place in one visit, over the course of three 15-minute sessions with little breaks in between. After a basic teeth polishing, hygienists paint teeth with a gentle hydrogen peroxide gel that a high-intensity light activates. Patients leave with a gift bag of toothpaste and a Colgate toothbrush, and can purchase additional customized take-home trays at a reduced price of $99 (a $300 value; requires additional visits). Please allow 90 minutes to complete the visit and treatment.

Smile Arts of NY

Dr. Mann likes to keep close to his practice, living several blocks away from his Midtown offices and giving patients his personal cell-phone number. Back at the office, he keeps customers cozy with warm-towel service, television, and blankets. This is all to defang the anxiety that many associate with dentistry.

Working like an architect on a miniature scale, Dr. Mann practices cosmetic dentistry solutions to change the size, shape, and alignment of teeth or close gaps in smiles. He also maintains the mouth’s solid infrastructure through general dentistry services, and fashions NTI night guards to keep teeth from grinding the score of Psycho.