Chen Run, Qiu Bing-Yan, Cheng Hui
Department of Prosthodontics, School and Hospital of Stomatology, Fujian Medical University. Fuzhou 350002, China. E-mail:
Shanghai Kou Qiang Yi Xue. 2019;28(2):175-178.
To explore the reconstruction method of buccal keratinized gingiva around implant in posterior maxillary area, and to evaluate its clinical effects and periodontal condition around the implants.
A total of 11 implants were selected by screening from 11 patients who had inadequate keratinized gingiva and needed to undergo secondary operation. An optimized root directional flap technique was applied to reconstruct keratinized gingiva in the stage of secondary operation. Crown restoration was finished 6 weeks after surgery and the patients were recalled 3 months after dental restoration. Effective keratinized mucosal width was recorded separately before the operation, crown restoration and 3 months after restoration. Clinical periodontal examination was conducted 3 months after restoration including probing depth (PD), bleeding on probing (BOP) and periapical film. SPSS19.0 software package was used for paired t test.
The average keratinized mucosal width was (1.44±0.34) mm and (3.30±0.36) mm before operation and after crown restoration, respectively.There was an average increase of 1.86 mm in effective keratinized mucosal width compared with preoperative value (P<0.05). Three months after restoration, the newly health keratinized gingiva remained stable without obvious inflammation. The mean width was (3.34±0.33) mm (P=0.58). Clinical periodontal examinations showed a mean PD of 2.83±1.20 and the mean BOP of 18.2%.
By using modified root directional flap technique in the secondary implant operation, the buccal keratinized gingiva around the implants can be effectively reconstructed. The short-term outcomes are satisfactory.
探讨上颌后牙区种植体周围颊侧角化龈的重建方法，并评估其临床效果及种植体周围的牙周状况。
从11例角化龈不足且需二期手术的患者中筛选出11枚种植体。在二期手术阶段应用改良根向瓣技术重建角化龈。术后6周完成冠修复，修复后3个月对患者进行回访。分别记录术前、冠修复时及修复后3个月的有效角化黏膜宽度。修复后3个月进行临床牙周检查，包括探诊深度（PD）、探诊出血（BOP）及根尖片检查。采用SPSS19.0软件包进行配对t检验。
术前及冠修复后角化黏膜平均宽度分别为（1.44±0.34）mm和（3.30±0.36）mm。有效角化黏膜宽度较术前平均增加1.86mm（P<0.05）。修复后3个月，新形成的健康角化龈保持稳定，无明显炎症。平均宽度为（3.34±0.33）mm（P=0.58）。临床牙周检查显示平均PD为2.83±1.20，平均BOP为18.2%。
在种植二期手术中应用改良根向瓣技术可有效重建种植体周围颊侧角化龈。短期效果满意。
