Periodontal tissue changes 40 years after periodontal regenerative therapy using hydroxyapatite granule bone graft materials

• Keisuke Seki,
• Nobuhiro Katahira,
• Kazuki Kudo,
• Masaya Torii

Affiliations

Keisuke Seki

Corresponding author. Department of Comprehensive Dentistry and Clinical Education, Nihon University School of Dentistry, 1-8-13, Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-8310, Japan.; Department of Comprehensive Dentistry and Clinical Education, Nihon University School of Dentistry, Tokyo, Japan; Division of Dental Education, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan

Nobuhiro Katahira

Private Practice, Tokyo, Japan

Kazuki Kudo

Department of Comprehensive Dentistry and Clinical Education, Nihon University School of Dentistry, Tokyo, Japan

Masaya Torii

Department of Comprehensive Dentistry and Clinical Education, Nihon University School of Dentistry, Tokyo, Japan