1. Dental Implant Clinic; Dental Hospital; Tokyo Medical and Dental University; Bunkyo-ku Tokyo Japan
2. Oral Implant Center; Kanagawa Dental University Hospital; Yokosuka Kanagawa Japan
3. Department of Oral Implantology and Regenerative Dental Medicine; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Bunkyo-ku Tokyo Japan