口腔医学 ›› 2026, Vol. 46 ›› Issue (4): 283-288.doi: 10.13591/j.cnki.kqyx.2026.04.008

• 基础与临床研究 • 上一篇    下一篇

基于3dMD的正畸治疗后成人面部软组织变化的研究

钟悦1,2,3, 吕丹4, 张译尹4, 黄子铭4, 张元1,2,3, 谢理哲1,2,3, 钱雅婧1,2,3()   

  1. 1 南京医科大学附属口腔医院正畸科, 江苏南京 (210029)
    2 口腔疾病研究与防治国家级重点实验室培育建设点(南京医科大学), 江苏南京 (210029)
    3 江苏省口腔转化医学工程研究中心(南京医科大学), 江苏南京 (210029)
    4 南京医科大学口腔医学院, 江苏南京 (210029)
  • 收稿日期:2025-10-09 出版日期:2026-04-28 发布日期:2026-04-17
  • 通讯作者: 钱雅婧 E-mail:qianyajing@njmu.edu.cn
  • 基金资助:
    江苏省大学生创新创业训练计划(S202510312107);国家自然科学基金(82571165);江苏省科教能力提升工程——江苏省研究型医院(YJXYYJSDW4);江苏省医学创新中心(CXZX202227)

Facial soft tissue changes in adults after orthodontic treatment based on 3dMD technology

ZHONG Yue1,2,3, LYU Dan4, ZHANG Yiyin4, HUANG Ziming4, ZHANG Yuan1,2,3, XIE Lizhe1,2,3, QIAN Yajing1,2,3()   

  1. Department of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
  • Received:2025-10-09 Online:2026-04-28 Published:2026-04-17

摘要:

目的 本研究旨在应用3dMD技术,定性和定量评估非拔牙成年正畸患者治疗前后面部软组织在三维方向上的变化,系统观察面部标志点的变化趋势,探索不同区域软组织的变化规律。方法 本研究选取52例非拔牙成人正畸患者为治疗组,17名未接受正畸治疗的成人为对照组。治疗组在正畸治疗前(T0)和正畸结束(T1)时使用3dMD系统获取面部三维图像,对照组间隔1年采集面部三维图像。将图像数据导入Geomagic Wrap软件进行配准,生成绝对色彩映射图,定性分析面部区域的三维变化;并选取26个软组织标志点进行定量分析,比较两组内和组间差异。结果 治疗组正畸治疗前后面部软组织变化具有对称性,治疗后面部整体呈内收或后移趋势,颞部、下颌角和口角区变化较为明显。定量分析结果显示,以眉间点为参考点时,额颞点、下颌角点和口角点的负向变化具有统计学意义(P<0.05);与对照组相比,额颞点和下颌角点的变化差异显著(P<0.05)。结论 非拔牙成人正畸治疗不会影响面部双侧对称性,但可能导致颞区与下颌角区软组织丰满度下降。因此在正畸治疗前应充分与患者沟通,引导其建立合理的治疗预期。

关键词: 正畸治疗, 面部软组织变化, 三维成像, 成人, 非拔牙矫治

Abstract:

Objective To qualitatively and quantitatively assess the three-dimensional changes in facial soft tissues in non-extraction adult orthodontic patients before and after treatmentusing 3dMD technology. The study systematically analyzes the trends of facial landmark changes and investigates the patterns of soft tissue variation in different facial regions. Methods The study included 52 non-extraction adult orthodontic patients(treatment group) and 17 untreated adults(control group). For the treatment group, 3D facial images were captured using the 3dMD system before treatment(T0) and after treatment(T1). 3D facial images of the control group were obtained at a one-year interval. The image data were imported into Geomagic Wrap software for registration. Absolute color maps were generated for qualitative analysis of 3D changes across facial regions. Additionally, 26 soft tissue landmarks were selected for quantitative analysis to compare differences within and between the two groups. Results The facial soft tissue changes in the treatment group before and after orthodontic treatment were symmetrical. After treatment, the overall facial profile exhibited a trend of retraction or posterior displacement, with the temporal, mandibular angle, and oral commissure regions showing more pronounced alterations. Quantitative analysis revealed statistically significant negative changes at the FT,Go' and Ch relative to the G' (P<0.05). Compared with the control group, the changes at the FT and Go' showed significant differences (P<0.05). Conclusion Non-extraction orthodontic treatment in adult patients does not compromise bilateral facial symmetry. However, it may lead to a reduction in soft tissue fullness in the temporal and mandibular angle regions. Therefore, comprehensive communication with patients prior to treatment is essential to guide them in establishing realistic therapeutic expectations.

Key words: orthodontic treatment, facial soft tissue changes, three-dimensional imaging, adult, non-extraction treatment

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