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目的：探讨发育性牙龈增生的临床及病理特点，并进行回顾性总结，为该疾病的临床诊断和治疗提供理论依据。方法：详细采集病史和细致的临床检查。患者女性，11周岁，下颌前牙区牙龈粘膜异常生长8年，家族中无类似疾病史；检查见下颌41-32区唇侧牙龈粘膜自膜龈联合处向冠方可见一带片状牙龈增生物，上端游离至下前牙唇面中1/3 处，约2.5×1.0cm 大小，颜色略红，翻起增生物可见41-32处边缘龈及龈乳头形态正常，略有红肿，增生物无压痛，表面无糜烂，探诊无出血。常规手术切除增生龈组织，局部粘膜修整，标本送病检。结果：术后创口一期愈合，粘膜平整无瘢痕，前庭沟及下唇系带形态良好。术后追踪2年无复发，口腔前庭及牙龈乳头和下唇系带形态正常，患者及家属满意。结论：手术治疗是对发育性牙龈增生的有效治疗方法。

英文摘要:

Objective: To investigate the clinical and pathological features of developmental gingival hyperplasia, and to provide a theoretical basis for the diagnosis and treatment of the disease. Methods: The detailed disease history and clinical examination of 11 years old girl were collected, whose mandibular anterior teeth gingival mucosa abnormal grew for 8 years, and who has no family history of similar disease. Dental examination showed a prominent ribbon gingival hyperplasia in the labial side of the mandibular anterior region. It was slightly red, about 2.5 CM×1.0 CM in size, and grew from the labial side of mucogingival junction to dental crown. The hyperplastic gingival was like a flower petal and covered the middle 1/3 of the anterior teeth. Opened the flower petal could find that the marginal gingiva and gingival papilla of the 41-32 region were almost normal. There were little swollen, almost no tenderness, no erosion of the surface, no bleeding while probing on the hyperplastic gingival. Resected the hyperplastic gingiva by conventional surgical, repaired the local mucosal, and sent the specimen to pathological examination. Results: After the first healed period, there was no scar formation, and the vestibular sulcus and lower labial frenum had a good form. There was no follow 2-year later. The vestibular sulcus, gingiva papillae and lower labial frenum were the normal form. The patient and their families were satisfied. Conclusion: The surgical treatment was an effective treatment for developmental of the gingival hyperplasia.

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