pyri Co gh Not for Publicationt CLINICAL APPLICATION b y Q u i N n o t t r f e o ssence The Concept of the Interdental Gingival Midpoint Line in Cervical Line Management Takeshi Nozawa, DDS Private Practice, Ojiya, Niigata, Japan Shunzo Tsurumaki, CDT Sanjo, Niigata, Japan Satoshi Yamaguchi, DDS Private Practice in Orthodontics, Yotsukaido, Chiba, Japan Hiroaki Enomoto, DDS Clinical Professor, Oral Implant Center, Nippon Dental University, Niigata Hospital, Niigata, Japan Koichi Ito, DDS, MSD, PhD Professor and Chairman, Department of Periodontology, Nihon University School of Dentistry, Tokyo, Japan Correspondence to: Dr Takeshi Nozawa, Nozawa Dental Office, 9-7 Sakae-cho, Ojiya-shi, Niigata-Ken, 947-0011, Japan Tel: 81 258 82 0468; Fax: 81 258 82 0357; e-mail:
[email protected] 46 THE EUROPEAN JOURNAL OF ESTHETIC DENTISTRY VOLUME 4 • NUMBER 1 • SPRING 2009 pyri Co gh Not for Publicationt NOZAWA ET AL b y Q u i N n o t t r f e o ssence Abstract The first purpose of this study was to inves- ment through some clinical cases. In a tigate the relationship between the lowest thick-flat biotype case using a clinical cervical point and the interdental gingival crown lengthening procedure, the lowest midpoint (IGM) line in the maxillary anteri- cervical points were adjacent to the IGM or region. After marking the lowest cervical lines following long-term coronal gingival points and the mesial and distal interden- growth. In a short-term observation of a tal gingival midpoints on study models of thin-scalloped biotype case, untouched fa- 77 patients, the shortest distances from the cial gingiva increased following interdental IGM lines that connect both interdental gin- gingival augmentation.