Stomatology ›› 2022, Vol. 42 ›› Issue (2): 165-169.doi: 10.13591/j.cnki.kqyx.2022.02.014

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Research progress on metal artifacts in oral and maxillofacial cone beam CT

LIU Yu, ZHAO Bin   

  1. Department of Prosthodontics,Shanxi Medical University School and Hospital of Stomatology, Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan 030001,China
  • Revised:2021-04-25 Online:2022-02-28 Published:2022-02-25

Abstract: Oral and maxillofacial cone beam computed tomography (CBCT) is one of the common imaging techniques used in oral and maxillofacial region. However, due to the existence of various high-density metal materials in the mouth, the metal artifacts produced by CBCT will reduce image quality and interfere with diagnosis of diseases, which limits its further application in clinical practice. In order to reduce the interference of metal artifacts on CBCT image quality, scholars have proposed a series of methods. This paper reviews the generation and influence of metal artifacts in CBCT, and the reduction methods proposed in recent years, in order to provide reference for oral radiologists to choose the most appropriate method for metal artifact reduction before scanning.

Key words: cone beam computed tomography, metal artifact, metal artifact reduction, deep learning, dual energy

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