口腔医学研究

口腔医学研究 ›› 2019, Vol. 35 ›› Issue (9): 902-905.DOI: 10.13701/j.cnki.kqyxyj.2019.09.020

• 数字化口腔医学 • 上一篇    下一篇

口内三维扫描结合CBCT建立数字化模型的研究

邹晨, 邹道星, 艾毅龙*   

  1. 佛山科学技术学院附属口腔医院·佛山市口腔医院正畸科,广东省数字化口腔医学工程技术研究中心,佛山市口腔医学工程技术研究中心 广东 佛山 528000
  • 收稿日期:2019-04-03 出版日期:2019-09-28 发布日期:2019-09-25
  • 通讯作者: 艾毅龙,E-mail:aiyilong@126.com
  • 作者简介:邹晨(1989~ ),女,江西人,硕士,主治医师,研究方向:正畸学。
  • 基金资助:
    佛山市医学类科技攻关项目(编号:2017AB001811)

Study on Three Dimensional Digitized Dental Model Based on Intraoral Scanners and Cone-beam Computed Tomography

ZOU Chen, ZOU Daoxing, AI Yilong*   

  1. Department of Orthodontics, Foshan Stomatology Hospital, School of Stomatology and Medicine, Foshan University, Guangdong Engineering Research Center of Digital Stomatology, Foshan Engineering Research Center of Stomatology, Foshan 528000, China
  • Received:2019-04-03 Online:2019-09-28 Published:2019-09-25

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摘要： 目的:通过CBCT、口内三维扫描获得牙根、牙冠及咬合信息,结合工程软件建立包含牙根的全口牙列数字化模型。方法:选取1名志愿者,对全口牙列进行CBCT和口内三维扫描分别取得CT和牙列数据。再将获取的DICOM格式数据在Mimics软件中进行数据分割、三维重建,获得包含牙根信息的独立牙齿模型,并采用Geomagic wrap逆向工程软件将口扫牙列数据与重建的牙齿模型信息配准拼接,重建包含牙根及咬合关系的全牙列三维模型图。结果:重建的全牙列三维数字化模型能够清晰的显示牙冠、牙根形态和位置、上下牙列的咬合关系。结论:口内三维扫描结合CBCT建立包含牙根的全口牙列数字化模型的方法,实现了正畸治疗中直观的对牙冠和牙根解剖形态、位置或位移变化的观察测量以及分析。

关键词: CBCT, 口内三维扫描, 牙列, 数字化模型

Abstract: Objective: To establish digitized dental model with root based on three-dimensional intraoral scanning and CBCT data, and to record the digital information of crown, root, and occlusion. Methods: Upper and lower dentitions of a female volunteer were scanned by CBCT and intraoral scanner. The resulting DICOM data was used for 3D reconstruction in Mimics software, and the independent digital teeth models with roots data were established. A dentition model with teeth roots was regrouped with independent teeth models built from CT data, and the intraoral dentition model data in Geomagic wrap software. Results: Upper and lower 3D digital full structure dentition models were rebuilt containing details of the morphology and position of the crowns and roots of teeth, and the occlusal relationship of upper and lower dentitions. Conclusion: Three-dimensional intraoral scanning combined with CBCT was used to establish a digital model of full dentition including tooth root. It could realize the observation, measurement, and analysis of the changes in the anatomical morphology, position or displacement of the crown, and the tooth root intuitively in orthodontic treatment.

Key words: CBCT, three-dimensional intraoral scanning, three digital model, dentition