口腔疾病防治 ›› 2020, Vol. 28 ›› Issue (7): 463-467.DOI: 10.12016/j.issn.2096-1456.2020.07.011

• 综述 • 上一篇    下一篇

口腔种植固定义齿数字化印模精度的研究进展

李尊泰1,2,孟维艳1,2()   

  1. 1. 吉林大学口腔医院种植科,吉林 长春(130000)
    2. 吉林省智能化口腔治疗技术工程重点实验室,吉林 长春(130000)
  • 收稿日期:2019-08-06 修回日期:2020-02-22 出版日期:2020-07-20 发布日期:2020-06-04
  • 通讯作者: 孟维艳
  • 作者简介:李尊泰,硕士研究生在读,Email:736306995@qq.com
  • 基金资助:
    国家自然科学基金资助项目(81571007)

Research progress on the precision of digital impressions used in implant-supported fixed prostheses

LI Zuntai1,2,MENG Weiyan1,2()   

  1. 1. Oral Implantology Department, Hospital of Stomatology, Jilin University, Changchun 130000, China
    2. Jilin Provincial Engineering Laboratory of Intelligent Oral Treatment Technology, Changchun 130000, China
  • Received:2019-08-06 Revised:2020-02-22 Online:2020-07-20 Published:2020-06-04
  • Contact: Weiyan MENG

摘要:

随着数字化技术在口腔治疗中的广泛应用,数字化印模已成为越来越多种植医师在印模制取时的选择。数字化印模具有患者体验佳、椅旁时间少、精度高等优势。本文回顾近5年的临床与基础实验研究文献,概述数字化印模精度的影响因素,给临床医师提供科学合理的建议。文献复习结果表明,影响数字化印模精度的根本因素是数字化印模系统的成像方式及其配套软件。由于数字化印模系统受限于目前科技发展水平,印模精度易受到医师扫描方式及策略、操作熟练度、扫描杆材质及形态、患者口内情况与环境光源等因素影响。建议医师在合理选用印模系统的情况下,严格控制环境灯光,应用直接法于口内获取印模以期获得高精度印模。在未来的应用中,印模系统的逐步更新可减少系统性误差,从而降低医师操作难度,提升印模精度。

关键词: 数字化, 印模, 扫描成像技术, 真实度, 精度, 误差, 种植修复, 固定义齿, 医师因素, 患者因素, 环境因素

Abstract:

Since the digital impression technique has already been widely used in dental therapy, it has grown into a popular option among implant practitioners. The advantages of the digital impression technique are as follows: better experience for patients during the treatment; less chair-side time consumption; and reliability in making the precise impression. Thus, we reviewed the relevant factors that impact the precision of the digital impression technique and introduced its influence mechanism through an evidence-based method that was based on analyzing in vitro and in vivo literature published within the previous 5 years, with a focus on such considerations as relevant factors to dentists, digital impression systems, patients, and the environment. A review of the literature showed that the main factors that have a large influence on impression precision are imaging techniques and the software for the impression system. However, due to the development of impression systems that are restricted at scientific and technological levels, impression precision is affected by multiple factors, such as scanning techniques, dentist operation proficiency, material and contours of scanbodies, patient conditions, and ambient light. Dentists are advised to scientifically choose the impression system, limit ambient light and adopt direct techniques that could enhance impression precision. In the future, the development of impression systems could reduce the systematic errors, decrease the operating complexity of dentists, and improve impression precision.

Key words: digitization, impression, scanning imaging technology, trueness, precision, errors, implant repair, fixed denture, physician factor, patient factor, environmental factor

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