Yoshinuma Naoto, Sato Shuichi, Makino Noritsugu, Saito Yuichi, Ito Koichi
Department of Periodontology, Nihon University School of Dentistry, Chiyoda-ku, Tokyo, Japan.
J Oral Sci. 2009 Dec;51(4):651-4. doi: 10.2334/josnusd.51.651.
Discrepancy in the labial gingival margin of the maxillary incisors poses a major aesthetic problem. Orthodontic extrusion can improve the aesthetic problem caused by gingival margin levels before restoration. In these case reports, orthodontic extrusion was performed with palatal circumferential supracrestal fiberotomy for improving the discrepancy of the labial gingival margin. Two years postoperatively, the position of the tooth and gingival margin remained stable. Orthodontic extrusion with palatal circumferential supracrestal fiberotomy was effective in improving the discrepancy of the labial gingival margin of maxillary incisors.
上颌切牙唇侧牙龈边缘的差异会造成严重的美学问题。正畸性牙伸长可以改善修复前牙龈边缘水平导致的美学问题。在这些病例报告中，采用腭侧环切龈上纤维切断术进行正畸性牙伸长，以改善唇侧牙龈边缘的差异。术后两年，牙齿和牙龈边缘的位置保持稳定。腭侧环切龈上纤维切断术联合正畸性牙伸长在改善上颌切牙唇侧牙龈边缘差异方面是有效的。
