1. Department of Prosthodontics, Seoul National University School of Dentistry, Seoul 110-749, South Korea, Department of Oral Biochemistry and Craniomaxillofacial Reconstructive Science, Dental Research Institute, BK21 CLS, and IBEC, Seoul National University School of Dentistry, Seoul 110-749, South Korea, Department of Advanced Organic Materials and Textile System Engineering, and BK21 FTIT, Chungnam National University, Daejeon 305-764, South Korea, College of Pharmacy, Ewha Womans University, Seoul 120...