Effectiveness of 3D-CT imaging in frontal cephalometric diagnosis

Persistent ID (NDL): info:ndljp/pid/12071555

Material type: 博士論文

Author: 大和, 麻琴

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Publication date: 2018-09-26

Material Format: Digital

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Name of awarding university/degree: 大阪歯科大学,博士（歯学）

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Note (General)：: Frontal cephalometric diagnosis that is used in examining maxillofacial symmetry is important in orthodontic treatment. Positioning of the head is imp...

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Material Type: 博士論文
Title: Effectiveness of 3D-CT imaging in frontal cephalometric diagnosis
Author/Editor: 大和, 麻琴
Author Heading: 大和, 麻琴
Publication Date: 2018-09-26
Publication Date (W3CDTF): 2018-09-26
Degree grantor/type: 大阪歯科大学
Date Granted: 2018-09-26
Date Granted (W3CDTF): 2018-09-26
Dissertation Number: 乙第1616号
Degree Type: 博士（歯学）
Conferring No. (Dissertation): 乙第1616号
Text Language Code: eng
Subject Heading: 3D-CT
Cephalometry
Diagnostic accuracy
Target Audience: 一般
Note (General): Frontal cephalometric diagnosis that is used in examining maxillofacial symmetry is important in orthodontic treatment. Positioning of the head is important to ensure an accurate diagnosis. We compared the accuracy of positioning frontal cephalograms and frontal 3D-CT images. 3D-CT images were constructed using either a positioning method with an axis based on ear rods (method 1), or by using a positioning method with anatomical reference planes (method 2). We did cephalometric measurements and superimposition for comparison of five frontal cephalograms before and after orthodontic surgery and frontal 3D-CT images constructed by the two positioning methods. Significant errors were observed on frontal cephalograms (up to 11.5 mm)　and also on the superimposition. In the 3D-CT images, both positioning methods had errors less than with the frontal cephalograms. Positioning method 2, which had a maximum error of 0.5 mm, had greater positioning precision than positioning method 1, which had a maximum error of 3.5 mm. It was also better with superimposition. The results suggest that 3D-CT images are superior to cephalograms. Positioning method 2, which has greater positioning precision, is very useful in constructing 3D-CT images.
2018年度
Persistent ID (NDL): info:ndljp/pid/12071555
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Collection: 障害者向け資料
Collection (Materials For Handicapped People:1): テキストデータ
Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文
https://dl.ndl.go.jp/collections/A00014
Acquisition Basis: 博士論文（自動収集）
Date Accepted (W3CDTF): 2022-02-06T04:33:19+09:00
Date Created (W3CDTF): 2018-11-27
Format (IMT): application/pdf
Access Restrictions: 国立国会図書館内限定公開
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Availability of remote photoduplication service: 可
Periodical Title (URI): http://id.nii.ac.jp/1392/00000185/
Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション
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