Dr. Okada received his DDS degree from Gifu Dental College and his PhD from Okayama University. He then attended the Graduate School of Dentistry, Osaka Dental University where he obtained his DDSc degree. Dr. Okada is an active member of Academy of Osseointegration, European Association of Osseointegration and American Association of Periodontology. He belongs to numerous professional organizations also in Japan, including: Japan Prosthodontics Society, The Academy of Gnathlogy and Occlusion, Japanese Society of Oral and Maxillofacial Surgeon, and Japanese Society of Oral Implantology. Dr. Okada has published several articles in journals. He has lectured extensively at international and national scientific meetings. Dr. Okada has private practices in Osaka.