E. Dean Powell, DDS, PA Cosmetic, Restorative, and Family Dentistry. We offer several teeth whitening system options designed to fit your needs, including a One-Hour Teeth Whitening System. With the remarkable technology available with the One-Hour Teeth Whitening System, you can schedule your appointment and have whiter teeth on the same day! Cosmetic dentistry, Whitening, Cleanings, Crowns & bridges, Fillings, Periodontal treatment, & Root canals, TMJ Treatment.- In business for over 30 years- Serving greater Hickory area and the state of North Carolina