505.3 kilometers. According to the map, the distance between the two places is 505.3 kilometers, which can be reached by car in 5 hours and 26 minutes, passing through Shen Chang Expressway and Beijing-Shanghai Expressway. Jiangsu Stomatological Hospital, also the School of Stomatology of Nanjing Medical University, was established in 1974, which is the only third-class first-class stomatological hospital in Jiangsu Province.