William Mestichelli, D.D.S. Dr. Mestichelli has been practicing dentistry in South Philadelphia since 1982 when he graduated from Temple Dental School. During his career, Dr. Mestichelli has served the South Philadelphia community with his easy-going approach to patient care and his expertise in a variety of general dental procedures, including root canals, crowns, teeth whitening and lumineers. Since September 2007, Dr. Mestichelli has been practicing in his state-of-the-art office, where the latest technology combines with the personal care that patients have come to expect.     Yvette Zerggen, Hygienist Yvette Zerggen graduated from the Community College of Philadelphia in 2001 with an Associates Degree in Applied Science and has been practicing since then. She is a rather recent addition to the staff, having joined Dr. Mestichelli in 2007.       Hank, Office Mascot