口腔医学研究

口腔医学研究 ›› 2021, Vol. 37 ›› Issue (6): 559-563.DOI: 10.13701/j.cnki.kqyxyj.2021.06.017

• 口腔修复学研究 • 上一篇    下一篇

模型修正技术下游离端黏膜的数字化分析

王晓萌1,2, 刘星纲1, 江青松1, 郑东翔1,3*   

  1. 1.首都医科大学附属北京口腔医院修复科 北京 100050;
    2.北京大学第一医院口腔科 北京 100034;
    3.首都医科大学附属北京佑安医院 北京 100069
  • 收稿日期:2020-12-03 出版日期:2021-06-28 发布日期:2021-06-17
  • 通讯作者: *郑东翔,E-mail:zheng.dx@ccmu.edu.cn
  • 作者简介:王晓萌(1994~ ),女,北京人,医师,硕士,研究方向:数字化口腔修复。
  • 基金资助:
    北京市医院管理局临床医学发展专项经费(编号:ZYLX201828)

Digital Analysis of Mucosal Deformation of Distal-extension Removable Denture with Altered-cast Impression

WANG Xiaomeng1,2, LIU Xinggang1, JIANG Qingsong1, ZHENG Dongxiang1,3*   

  1. 1. Department of Prosthodontics, Beijing Stomatological Hospital, Capital Medical University, Beijing 100050, China;
    2. Department of Stomatology, Peking University First Hospital, Beijing 100034, China;
    3. Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
  • Received:2020-12-03 Online:2021-06-28 Published:2021-06-17

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摘要： 目的:量化评估模型修正技术对下颌游离端牙槽嵴黏膜的影响,为可摘局部义齿黏膜变形量数字化参数设定探寻前期数据基础。方法:连续纳入2018年12月~2020年2月就诊于首都医科大学附属北京口腔医院修复科需行下颌游离端可摘义齿修复的受试者7例,收集受试者口内数字化光学扫描及下颌CBCT数据,应用模型修正技术制取功能印模并行仓扫建模,应用Geomagic软件配准分析,R语言软件提取游离端牙槽嵴黏膜厚度和黏膜变形量。结果:(1)游离端黏膜厚度为(2.21±0.72) mm。(2)游离端黏膜变形量为(0.38±0.55) mm,由近中向远中逐渐增大。(3)各位点处黏膜变形量与黏膜厚度未发现显著相关趋势。结论:游离端黏膜变形量由近中向远中逐渐增大,各位点处黏膜变形量与黏膜厚度未发现显著相关趋势。

关键词: 数字化分析, 模型修正印模技术, 游离端黏膜变形量

Abstract: Objective: To access the deformation of mandibular distal-extension mucosa with altered-cast impression techniques. Methods: Seven patients receiving a mandibular distal-extension removable denture with the altered-cast impression in prosthodontics department of Beijing Stomatological Hospital were assigned. Mandibular CBCT was performed and digital intraoral scanner was used to acquire anatomic impression of mandible. The altered cast was digitalized by the laboratory scanner. The digital models were registered by Geomagic software. The thickness and the deformation of distal-extension mandibular mucosa were processed and analyzed with Geomagic and R language softwares. Results: The thickness of distal-extension mucosa was (2.21±0.72) mm. The deformation of distal-extension mucosa was (0.38±0.55) mm, which increased from mesial to distal. There was no significant correlation between the mucosal deformation and the thickness in each point. Conclusion: The deformation of distal-extension mucosa increased from mesial to distal. There was no significant correlation between the mucosal deformation and the thickness in each point.

Key words: digital analysis, altered cast impression, deformation of mucosa