{"created":"2023-06-23T12:19:44.068656+00:00","id":10824,"links":{},"metadata":{"_buckets":{"deposit":"e2f94582-cfa6-41b7-8f1f-0accff4ab879"},"_deposit":{"created_by":21,"id":"10824","owners":[21],"pid":{"revision_id":0,"type":"depid","value":"10824"},"status":"published"},"_oai":{"id":"oai:asahi-u.repo.nii.ac.jp:00010824","sets":["46:348:431"]},"author_link":["8842","8863","343","4931","4054","8803","4090","8668"],"item_10002_biblio_info_77":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2019-02","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"156","bibliographicPageStart":"149","bibliographicVolumeNumber":"45","bibliographic_titles":[{"bibliographic_title":"岐阜歯科学会雑誌"},{"bibliographic_title":"The Journal of Gifu Dental Society","bibliographic_titleLang":"en"}]}]},"item_10002_description_80":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"< 目的>\nトモシンセシス法をベースとして新たに開発されたパノラマＸ線撮影システムは、平面画像から三次元的な直線、三次元空間を描出することができる（3D-pano）。この3D-pano は、被検者の三次元座標値を基に正確な直線距離を計測することを可能とする。本研究の目的は、3D-pano画像と口内法Ｘ線撮影で得られた歯牙の全長計測値の正確性を比較することである。\n< 対象と方法>\n28人の健常成人（男性16名、女性12名、平均24.7歳）を被検者とした。3D-pano画像、二等分法撮影画像（Dental）画像、歯科用コーンビームCT（CBCT）画像が撮影された。ScanX digital systemを用いて、口内法Ｘ線撮影として二等分法撮影画像が取得された。QR Master H/Revo imaging systemを用いて3D-pano法とCBCTが撮影された。CBCT画像のボクセルサイズは0.125mmとした。各々の撮影法で得られた画像から上顎両側中切歯、および上顎両側側切歯の全長が計測された。次に、その平均値を算出した。CBCTから得られた計測値を基準値とし、3D-pano画像と二等分法画像の誤差率が算出された。統計解析にはShapiro-Wilk検定とKruskal Wallis検定を用いた。\n< 結果>\n上顎中切歯、側切歯を合わせた四本の歯牙の長さの平均値はCBCTが21.53 mm、Dentalが24.19 mm、3D-pano法が21.05mmであった。CBCTと3D-pano法の計測値に有意差はなかったが、Dentalの計測値はCBCTおよび3D-pano法と比較して有意に大きかった（p<0.01）。3D-pano法の誤差率の平均は-1.82％、口内法Ｘ線撮影は12.40％であった。3D-pano法の拡大率は、口内法Ｘ線撮影より有意に小さかった（p<0.01）。\n< 考察>\n3D-pano法は口内法Ｘ線撮影より精度が高かった。3D-pano法は、歯科インプラント治療計画立案、根管長の推定、辺縁歯槽骨の喪失の評価などの歯科診療において有用な方法となるであろう。","subitem_description_type":"Abstract"}]},"item_10002_description_81":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"<Objective>\nA newly developed panoramic radiography system based on tomosynthesis can render linear and 3D spatially-oriented planar images (3D-pano). This 3D-pano enable accurate linear measurements based on 3D coordinate values of objects. The purpose of this study was to compare the accuracy of tooth length measurement between 3D-pano images and intraoral radiographs.\n<Subjects and methods>\nTwenty-eight healthy adult volunteers (16 males, 12 females, average 24.7 years old) participated in this study. For all subjects, 3D-pano images, intraoral radiographs and dental cone-beam CT (CBCT) images were acquired. The bisected angle technique (Dental) was used for intraoral radiographs using the ScanX (Air Techniques co., USA) digital system. The QR master-H/Revo imaging system (Takara Telesystems co., Japan) was used to obtain 3D-pano and CBCT images. The voxel size of the CBCT images was 0.125 mm. The length of the maxillary central and lateral incisors was measured with each imaging modality, and the mean length was calculated. Based on the measurement results from CBCT as the standard, the magnification ratio of the 3D-pano and bisected angle technique images was calculated. The Shapiro-Wilk test and the Kruskal-Wallis test were used for statistical analysis.\n<Results>\nThe mean lengths of the four maxillary middle and lateral incisors were 21.53 mm on CBCT, 24.19mm on Dental and 21.05mm on 3D-pano. There was no significant difference between the length measured on CBCT and 3D-pano, but that on Dental was significantly longer (p<0.01). The magnification ratio of the intraoral radiograph was 12.40% and that of the 3D-pano image was -1.82%, being significantly smaller (p<0.01).\n<Discussion>\nThe 3D-pano images were more accurate than the intraoral radiographs. Use of 3D-pano imaging will be beneficial in clinical dentistry such as for planning implant treatment, estimating root canal length, and the evaluation of periodontal bone loss. 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Dentistry"},{"subitem_textarea_value":"朝日大学歯学部口腔病態医療学講座歯科放射線学分野\nDepartment of Oral Radiology, Asahi University, School of Dentistry"},{"subitem_textarea_value":"朝日大学歯学部口腔病態医療学講座歯科放射線学分野\nDepartment of Oral Radiology, Asahi University, School of Dentistry"},{"subitem_textarea_value":"朝日大学歯学部口腔病態医療学講座口腔外科学分野\nDepartment of Oral and Maxillofacial Surgery, Asahi University, School of Dentistry"}]},"item_10002_version_type_95":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNameIdentifiers":[],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"東, 宗弘","creatorNameLang":"ja"},{"creatorName":"AZUMA, 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MB"}],"format":"application/pdf","licensetype":"license_11","mimetype":"application/pdf","url":{"label":"gifushika453_149156_2019","url":"https://asahi-u.repo.nii.ac.jp/record/10824/files/gifushika453_149156_2019.pdf"},"version_id":"ec25d023-f356-4a4f-b85d-f4ed3f082d2c"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"トモシンセシス法","subitem_subject_scheme":"Other"},{"subitem_subject":"三次元パノラマ","subitem_subject_scheme":"Other"},{"subitem_subject":"歯科用コーンビームCT","subitem_subject_scheme":"Other"},{"subitem_subject":"口内法","subitem_subject_scheme":"Other"},{"subitem_subject":"Tomosynthesis","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"3D panorama","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Cone Beam CT","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Intraoral radiograph","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"二等分面法およびパノラマ画像三次元表示法による歯の長さの計測精度","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"二等分面法およびパノラマ画像三次元表示法による歯の長さの計測精度"},{"subitem_title":"Measurement accuracy of tooth length with the bisecting-angle technique and 3D panoramic radiography","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"21","path":["431"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-04-15"},"publish_date":"2019-04-15","publish_status":"0","recid":"10824","relation_version_is_last":true,"title":["二等分面法およびパノラマ画像三次元表示法による歯の長さの計測精度"],"weko_creator_id":"21","weko_shared_id":-1},"updated":"2023-12-25T06:11:55.859946+00:00"}