Jan Linhart, D.D.S., P.C. 230 Park Ave., Ste. 1164, at E. 46th St., 682-5180, drlinhart.com. Named one of America’s top dentists in Castle Connolly’s 2005 guide to America’s Cosmetic Doctors and Dentists, Dr. Linhart provides dental specialties such as porcelain veneers, Pearlinbrite€Ÿ laser tooth whitening and color restoration.