Abstract：
Hereditary gingival fibromatosis (HGF) is characterized by sub-epithelial fibromatosis of keratinized gingiva resulting in a fibrotic enlargement of keratinized gingiva. The treatment choice is gingivectomy, which can be performed with an internal or external bevel incision conventionally. However, both techniques can hardly resume the natural status of gingiva, and have a certain recurrence rate, especially in the cases which have limited width of attached gingiva.
Two cases of HGF with the chief complaint of difficulty in mastication, pronunciation, and poor esthetics were presented. After the initial periodontal therapy, a novel gingivoplasty modified with a crevicular incision was applied. A full thickness flap above the mucogingival junction and a split flap below the junction were raised. Then, fibrotic connective tissue was completely eliminated and keratinized gingival epithelium was preserved. The fibrotic alveolar bone was shaped by handpiece and bur. Finally, the flap was apically repositioned and sutured. Twelve months after surgery, the gingiva recovered with normal color, contour and consistency.
Compared to traditional gingivectomy, modified gingivoplasty which focuses on eliminating pathological fibrotic connective tissue can completely resume the natural appearance of gingiva and demonstrate no tendency of recurrence.
Two cases of HGF with the chief complaint of difficulty in mastication, pronunciation, and poor esthetics were presented. After the initial periodontal therapy, a novel gingivoplasty modified with a crevicular incision was applied. A full thickness flap above the mucogingival junction and a split flap below the junction were raised. Then, fibrotic connective tissue was completely eliminated and keratinized gingival epithelium was preserved. The fibrotic alveolar bone was shaped by handpiece and bur. Finally, the flap was apically repositioned and sutured. Twelve months after surgery, the gingiva recovered with normal color, contour and consistency.
Compared to traditional gingivectomy, modified gingivoplasty which focuses on eliminating pathological fibrotic connective tissue can completely resume the natural appearance of gingiva and demonstrate no tendency of recurrence.
摘要：
遗传性牙龈纤维瘤病（HGF）的特征是角化牙龈的上皮下纤维瘤病，导致角化牙龈的纤维化增大。治疗的选择是牙龈切除术,这可以用常规的内部或外部斜面切口来执行。然而,这两种技术都很难恢复牙龈的自然状态，并且有一定的复发率，特别是在附着牙龈宽度有限的情况下。
2例HGF主诉咀嚼困难，发音,提出了不良的美学。最初的牙周治疗后，应用了一种用牙沟切口改良的新型牙龈成形术。粘膜牙龈交界处上方的全厚皮瓣和交界处下方的裂开皮瓣被抬起。然后，完全消除了纤维化结缔组织，并保留了角化的牙龈上皮。纤维化的牙槽骨由手持件和钻头成形。最后,皮瓣顶端重新定位并缝合。手术后12个月,牙龈颜色恢复正常，轮廓和一致性。
与传统的牙龈切除术相比，以消除病理性纤维化结缔组织为重点的改良牙龈成形术可以完全恢复牙龈的自然外观，并且没有复发的趋势。
2例HGF主诉咀嚼困难，发音,提出了不良的美学。最初的牙周治疗后，应用了一种用牙沟切口改良的新型牙龈成形术。粘膜牙龈交界处上方的全厚皮瓣和交界处下方的裂开皮瓣被抬起。然后，完全消除了纤维化结缔组织，并保留了角化的牙龈上皮。纤维化的牙槽骨由手持件和钻头成形。最后,皮瓣顶端重新定位并缝合。手术后12个月,牙龈颜色恢复正常，轮廓和一致性。
与传统的牙龈切除术相比，以消除病理性纤维化结缔组织为重点的改良牙龈成形术可以完全恢复牙龈的自然外观，并且没有复发的趋势。
