Temple’s Kornberg School of Dentistry, the nation’s second-oldest dental school, is preparing to celebrate its 150th anniversary this weekend as hundreds of alumni gather in Philadelphia. Dean Amid Ismail gave 6ABC a guided tour of the school’s museum, which houses an enormous collection of dental artifacts, including 19th-century utensils and old X-ray machines. Today the school boasts a state-of-the-art facility. Dozens of the school's current patients will get free non-surgical dental procedures on Saturday as part of the school's 150th anniversary celebration.