Influence of voxel size and scan field of view on fracture-like artifacts from gutta-percha obturated endodontically treated teeth on cone-beam computed tomography images

Masahiro Iikubo, Takashi Nishioka, Shintaro Okura, Kaoru Kobayashi, Tsukasa Sano, Akitoshi Katsumata, Eiichiro Ariji, Ikuho Kojima, Maya Sakamoto, Takashi Sasano

研究成果: Article査読

15 被引用数 (Scopus)

抄録

Objective To determine the optimal scan settings (scan mode and position of field of view [FOV]) for cone beam computed tomography to reduce root fracture-like artifacts that are often observed in teeth filled with gutta-percha cones (GPCs). Study Design Fracture-like artifacts that appeared on cone beam computed tomography images of 9 extracted human mandibular premolars filled with GPCs were analyzed using I-mode (FOV, 102 mm; voxel size, 0.2 mm) and D-mode (FOV, 51 mm; voxel size, 0.1 mm) settings. Results The artificial lines were more obvious in I-mode than in D-mode. Increased distance between the center of the FOV and the GPCs produced stronger artificial lines in both I-mode and D-mode. Conclusion To reduce fracture-like artifacts, it is critical to use a mode with small voxel size and to place the target tooth in the center of the FOV.

本文言語English
ページ(範囲)631-637
ページ数7
ジャーナルOral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
122
5
DOI
出版ステータスPublished - 2016 11 1

ASJC Scopus subject areas

  • 外科
  • 口腔外科
  • 病理学および法医学
  • 歯科学(その他)
  • 放射線学、核医学およびイメージング

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