华西口腔医学杂志 ›› 2019, Vol. 37 ›› Issue (5): 537-540.doi: 10.7518/hxkq.2019.05.016

• 口腔正畸学专栏 • 上一篇    下一篇

正畸应力作用下牙龈肌成纤维细胞表达的初步研究

孟耀1,刘曼2(),邓倩楠1   

  1. 1.深圳市儿童医院口腔正畸科,深圳 518000
    2.深圳市职业技术学院医学技术及护理学院,深圳 518055
  • 收稿日期:2019-03-15 修回日期:2019-07-02 出版日期:2019-10-01 发布日期:2019-10-15
  • 通讯作者: 刘曼 E-mail:liumandentist@126.com
  • 作者简介:孟耀,副主任医师,博士,E-mail:573975227@qq.com
  • 基金资助:
    深圳市科技创新委员会基础研究项目(JCYJ201802281-64957104)

Expression of myofibroblast in gingival after orthodontic loading

Meng Yao1,Liu Man2(),Deng Qiannan1   

  1. 1.Dept. of Orthodontics, Shenzhen Children’s Hospital, Shenzhen 518000, China
    2.Medical Technic & Nursing School, Shenzhen Polytechnic, Shenzhen 518055, China
  • Received:2019-03-15 Revised:2019-07-02 Online:2019-10-01 Published:2019-10-15
  • Contact: Man Liu E-mail:liumandentist@126.com
  • Supported by:
    Basic Research Projects of Shenzhen Science and Technology Innovation Committee(JCYJ201802281-64957104)

摘要:

目的 初步探讨正畸应力加载后牙龈肌成纤维细胞的表达情况。方法 选取8例正畸应力加载后需要拔除牙牙龈组织,以应力加载前拔除牙牙龈组织为对照,进行α-平滑肌肌动蛋白(α-SMA)、Ⅰ型胶原、Ⅲ型胶原免疫组织化学染色。然后进行测量和统计分析。结果 正畸应力加载前牙龈组织内Ⅰ型胶原、Ⅲ型胶原免疫组化染色阳性,α-SMA除血管上皮外,其余为阴性表达。正畸应力加载后,Ⅰ型胶原、Ⅲ型胶原表达明显上升,差异有统计学意义(P<0.05);α-SMA在牙龈组织内出现阳性表达,与加力前差异有统计学意义(P<0.05)。结论 正畸应力加载后,牙龈组织内肌成纤维细胞出现表达,其可能在正畸牙术后复发中发挥一定作用。

关键词: 正畸, 牙龈, 肌成纤维细胞, α-平滑肌肌动蛋白

Abstract:

Objective To examine the expression of myofibroblast in gingival after orthodontic loading. Methods Eight patients were selected as experimental group and treated with orthodontic force for 4 months. Ten patients were selected as the control group, were not loaded. The gingival protein expressions of collagen typeⅠ, collagen type Ⅲ, α-smooth muscle actin (α-SMA) were evaluated by immunohistochemistry method. Results Positive expressions of collagen typeⅠ, collagen type Ⅲ were founded, while no positive staining for α-SMA in the gingival tissue except vascular epithelium before loading. In experimental group, collagen type I and collagen type Ⅲ were increased after orthodontic loading (P<0.05), the expression of α-SMA was detected and statistically significant (P<0.05). Conclusion The myofibroblast exists in gingival tissue after orthodontic loading, and it may be concerned with orthodontic teeth relapse.

Key words: orthodontics, gingival, myofibroblast, α-smooth muscle actin

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