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Development of Stereoradiography for the alveolar bone

Research Project

Project/Area Number 60870068
Research Category

Grant-in-Aid for Developmental Scientific Research

Allocation TypeSingle-year Grants
Research Field Conservative dentistry
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

HORIUCHI Hiroshi  Tohoku University School of Dentistry, Professor, 歯学部, 教授 (00013962)

Co-Investigator(Kenkyū-buntansha) SATOU Tieko  Tohoku University School of Dentistry, Assistant, 歯学部, 助手 (00142985)
SHOJI Shigeru  Tohoku University School of Dentistry, Lecturer, 歯学部附属病院, 講師 (10142986)
MAITA Eikiti  Tohoku University School of Dentistry, Assistant Professor, 歯学部, 助教授 (80108547)
Project Period (FY) 1985 – 1986
Project Status Completed (Fiscal Year 1986)
Budget Amount *help
¥9,000,000 (Direct Cost: ¥9,000,000)
Fiscal Year 1986: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1985: ¥7,000,000 (Direct Cost: ¥7,000,000)
KeywordsStereoradiography / Periodontal pocket / X-ray / 歯槽骨 / 立体X線像撮影装置 / 三次元的解析
Research Abstract

The purpose of this research is to develop a clinical method to record and analyze stereoradiographic images of teeth and their periodontal tissues.
The collimating device was made for each patient. It consisted of a film holder, a bite wing. and a pointer. The x-ray apparatus designed was consisted of 2 x-ray tubes. Interfocal distance of tubes was 9.6 cm. The center lines of the x-ray beams crossed 55 cm from the interfocal plane. A collapsible pointer was incorporated to indicate the crossing point. It was possible to adjust the exposure time between 0.1 and 2.0 s.
To show the bottom of the periodontal pocket, 4 pieces of stainless steel wire(diameter=0.4 and 0.5 mm) were inserted into the pocket. To indicate lingual side, the ends of the lingual wire were bent.
Extracted human teeth and teeth with dry human skull were used to make x-ray exposures during the developmental stage of this method. A few clinical application was conducted.
Observation of the image was made using a stereoscope (Topkon Co. Ltd.) or without using any special equipment. If the observer was accustomed to it, stereognosis of the image was also possible by unaided eye.
This method was useful to obtain a stereoradiographic image of teeth and their periodontal tissues.

Report

(2 results)
  • 1986 Final Research Report Summary
  • 1985 Annual Research Report
  • Research Products

    (2 results)

All Other

All Publications (2 results)

  • [Publications] 岡田良平,小松拓夫,小倉隆一,鈴木祐平,堀内博: 日本歯周病学会誌. 28巻. 1137-1143 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Okada, R., Komatsu, T., Ogura, R., Suzuki, Y. and Horiuchi, H.: "Stereoradiography for Periodontal Observation" J. Japan Ass. Periodont.28(4). 1137-1143 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary

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Published: 1987-03-31   Modified: 2016-04-21  

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