Jung Ui-Won, Um Yoo-Jung, Choi Seong-Ho
Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul, Korea.
J Periodontol. 2008 May;79(5):934-40. doi: 10.1902/jop.2008.070445.
The palatal area has been the major donor site for obtaining connective tissue for root-coverage procedures. This study evaluated the long-term outcome of using a gingival cuff from the maxillary tuberosity area as a donor site for root coverage procedures.
Case 1: A 26-year-old female patient complaining of tooth hypersensitivity and gingival recession on the maxillary left canine was treated with root coverage using a pouch technique. A connective tissue graft was obtained from the gingival cuff of the maxillary tuberosity area. An additional gingivectomy was performed at 3 months after surgery to trim the bulk of the grafted tissue. Regular recall check-up visits, including oral hygiene maintenance, occurred every 6 months. The patient was followed for 35 months after surgery. Case 2: A 24-year-old female patient with a chief complaint of tooth hypersensitivity and multiple areas of gingival recession in the maxilla was treated with a pouch and semilunar technique. The patient was treated with the same surgical protocol as in case 1. The patient was followed for 31 months after surgery.
Full coverage was achieved in both cases with uneventful healing. The gingival biotype changed from a thin scalloped biotype to a thick flat biotype, and the overall color match was successful. The histologic findings of case 1 revealed good adaptation of the grafted tissue with continuous epithelial lining into the recipient site. The grafted tissue remained consistently stable with no change in the probing depths.
The long-term evaluation of root coverage with a gingival cuff of the maxillary tuberosity area showed it to be an easier method than obtaining the graft from palatal masticatory mucosa, with a highly predictable prognosis.
腭部一直是获取结缔组织用于牙根覆盖手术的主要供区。本研究评估了以上颌结节区牙龈袖口作为牙根覆盖手术供区的长期效果。
病例1：一名26岁女性患者，主诉上颌左侧尖牙牙齿过敏和牙龈退缩，采用袋形技术进行牙根覆盖治疗。从上颌结节区牙龈袖口获取结缔组织移植物。术后3个月进行额外的牙龈切除术以修剪移植组织的体积。每6个月定期进行复查，包括口腔卫生维护。术后对患者进行了35个月的随访。病例2：一名24岁女性患者，主诉牙齿过敏和上颌多处牙龈退缩，采用袋形和半月形技术进行治疗。该患者采用与病例1相同的手术方案进行治疗。术后对患者进行了31个月的随访。
两例均实现了完全覆盖，愈合顺利。牙龈生物型从薄扇贝状生物型转变为厚扁平生物型，整体颜色匹配成功。病例1的组织学检查结果显示移植组织与受体部位的连续上皮衬里良好适应。移植组织始终保持稳定，探诊深度无变化。
对上颌结节区牙龈袖口进行牙根覆盖的长期评估表明，这是一种比从腭部咀嚼黏膜获取移植物更容易的方法，预后高度可预测。
