1. Department of Oral and Maxillofacial Surgery, Tsurumi University, School of Dental Medicine , 2-1-3 Tsurumi, Tsurumi-ku, Yokohama-city, Kanagawa, 230-8501 , Japan
2. Department of Plastic and Aesthetic Surgery, Kitasato University, School of Medicine , 1-15-1 Kitasato, Minami-ku, Sagamihara-city, Kanagawa 252-0374 , Japan
3. Division of Oral and Maxillofacial Surgery , Department of Reconstructive Oral and Maxillofacial Surgery, , 19-1 Uchimaru, Morioka, Iwate 020-8505 , Japan
4. School of Dentistry, Iwate Medical University , Department of Reconstructive Oral and Maxillofacial Surgery, , 19-1 Uchimaru, Morioka, Iwate 020-8505 , Japan
5. Department of Oral and Maxillofacial Surgery, Saiseikai Yokohamashi Tobu Hospital , 3-6-1 Shimosueyoshi, Tsurumi-ku, Yokohama-city, Kanagawa 230-8765 , Japan