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1995 Fiscal Year Final Research Report Summary

Dento-maxillary three-dimensional image using cross-sectional tomography

Research Project

Project/Area Number 06671895
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 病態科学系歯学(含放射線系歯学)
Research InstitutionAsahi University

Principal Investigator

FUJISHITA Masami  Prof.Dept.of Oral Radiol.Asahi Univ.School of Dent., 歯学部, 教授 (50028809)

Co-Investigator(Kenkyū-buntansha) MORI Keisuke  Manager, Engineering Development Dept, Japan Morita co., 技術開発部, 課長
KAWAMATA Akitoshi  Resarch Associate, Dept.of Oral Radiol.Asahi Univ.School of Dent., 歯学部, 助手 (30195143)
Project Period (FY) 1994 – 1995
Keywordstomography / dental / three-dimensional (3D) image
Research Abstract

The purpose of this study is to create the three-dimensional (3D) reconstructed image using multi-layr cross-sectional tomography of Jaw and/or tooth arch. Firstly, to obtain the cross-sectional image which is fit to 3D reconstruction, we investigated how much the horizontal x-ray beam direction affected the crosssectional image of the mandibular molar region. As a result of studies, following technique were used to find a best x-ray beam direction and to create the 3D image.
1 : As a orientation, five or more images of each mandibular region are taken with digital changes in the horizontal x-ray beam direction.
2 : A x-ray beam direction is chosen using the sharpness of cortical bone and the area of cross-cut jaw bone as the criteria.
3 : Serial cross-cut images are taken in the corrected x-ray beam direction.
4 : The images are digitized by a scanner and reconstructed to a 3D image.
This 3D image may useful to the endosseous implant treatment.

  • Research Products

    (2 results)

All Other

All Publications (2 results)

  • [Publications] 川俣明敏: "上顎洞底挙上法(sinus lift)症例の画像的検討" 日本口腔インプラント学会誌. (発表予定).

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Akitoshi Kawamata: "A radiologic evaluation of sinus lift cases" Journal of Japanese Society of Oral Implantology.

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1997-03-04  

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