Automatic Point Cloud Patching of Intraoral Three-Dimensional Scanning Based on Deep Learning.

Journal: International dental journal
Published Date: Jul 19, 2025

Abstract

INTRODUCTION AND AIMS: Intraoral scanning (IOS) captures real-time surface morphology of teeth and is widely used in clinical dentistry. However, due to the complex intraoral environment, data loss during scanning is common, leading to incomplete three-dimensional (3D) point clouds. This study aimed to develop and evaluate a deep learning-based method to automatically restore missing regions in intraoral 3D point clouds, thereby improving the accuracy and efficiency of digital orthodontic workflows.

Authors

  • Qianhan Zheng
    Department of Orthodontics, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, PR China.
  • Yimin Wang
    Department of Electrical Engineering and Computer Science , University of Michigan , 1301 Beal Avenue , Ann Arbor , Michigan 48109-2122 , United States.
  • Mengqi Zhou
    School of Stomatology, Clinical Research Center for Oral Diseases of Zhejiang Province, Stomatology HospitalZhejiang University School of MedicineKey Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, China.
  • Yongjia Wu
    Department of Orthodontics, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, PR China. Electronic address: yogurtwu@zju.edu.cn.
  • Jiahao Chen
    The First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, 310006, China.
  • Xiaozhe Wang
    School of Stomatology, Clinical Research Center for Oral Diseases of Zhejiang Province, Stomatology HospitalZhejiang University School of MedicineKey Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, China.
  • Lixia Gao
    Savaid Stomatology School, Hangzhou Medical College, Hangzhou, Zhejiang, China.
  • Ting Kang
    Department of Oncology, Affiliated Hospital of Yan'an University, Yan'an 716000, Shaanxi, China.
  • Xuepeng Chen
    Department of Orthodontics, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, PR China. Electronic address: cxp1979@zju.edu.cn.
  • Weifang Zhang
    Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, China; Social Medicine and Health Affairs Administration, Zhejiang University, Hangzhou, Zhejiang, China. Electronic address: chzwf@zju.edu.cn.

Keywords

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