新規骨固定補助装置は顎整形治療を想定した即時高荷重条件下でも歯科矯正用アンカースクリューの安定性を向上させる

• 資料種別: 博士論文
• タイトル: 新規骨固定補助装置は顎整形治療を想定した即時高荷重条件下でも歯科矯正用アンカースクリューの安定性を向上させる
• 著者・編者: 山形, 勁太
• 著者標目: 山形, 勁太
• 出版事項: The E. H. Angle Education and Research Foundation
• 出版年月日等: 2022-10-18
• 出版年（W3CDTF）: 2022-10-18
• 並列タイトル等: A novel auxiliary device enhances the miniscrew stability under immediate heavy loading simulating orthopedic treatment
• 授与機関名: 鹿児島大学
• 授与年月日: 2022-10-18
• 授与年月日（W3CDTF）: 2022-10-18
• 報告番号: 甲総研第672号
• 学位: 博士(歯学)
• 本文の言語コード: eng
• 件名標目: Miniscrew; Stability; Animal study; Temporary anchorage device; Orthopedic force; Immediate loading
• 対象利用者: 一般
• 一般注記: 出版タイプ： VoR; 博士論文全文, 博士論文要旨, 最終試験結果の要旨, 論文審査の要旨; Objectives: To evaluate miniscrew stability and perform a histomorphometric analysis of the bone around the miniscrew under a load corresponding to orthopedic force.Materials and Methods: Thirty-two miniscrews were implanted into eight rabbit tibias. Auxiliary group rabbits received auxiliary devices with miniscrews (n = 8, 28 days; n = 8, 56 days), and those in the nonauxiliary control group received miniscrews without auxiliary devices (n = 8, 28 days; n = 8, 56 days). Elastics were placed between miniscrews to apply a load of 5 N. Miniscrew stability was evaluated using a Periotest. Bone-to-implant contact (BIC) and spike implantation depth were measured histomorphologically.Results: Periotest values in the auxiliary group were significantly lower than those in the nonauxiliary group at all time periods. There was no significant difference in BIC between the auxiliary and nonauxiliary groups at 28 or 56 days postimplantation. The implantation spike depth in the auxiliary group was significantly greater at 56 days compared to that at 28 days. Newly formed bone was observed around the spike of the auxiliary device at 56 days.Conclusions: The results suggest that the use of miniscrews in conjunction with auxiliary devices provides stable skeletal anchorage, which may be useful in orthopedic treatments.Keita Yamagata, Yasuhiko Oga, Sangho Kwon, Aya Maeda-Iino, Takanori Ishikawa, Shouichi MiyawakiA novel auxiliary device enhances the miniscrew stability under immediate heavy loading simulating orthopedic treatmentAngle Orthodontist (2022)https://doi.org/10.2319/022222-163.1
• 国立国会図書館永続的識別子: info:ndljp/pid/12509573; https://dl.ndl.go.jp/pid/12509573
• コレクション（共通）: 障害者向け資料
• コレクション（障害者向け資料：レベル1）: テキストデータ
• コレクション（個別）: 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
• 収集根拠: 博士論文（自動収集）
• 記録形式（IMT）: application/pdf
• オンライン閲覧公開範囲: 国立国会図書館内限定公開
• デジタル化資料送信: 図書館・個人送信対象外
• 遠隔複写可否（NDL）: 可
• 掲載誌（URI）: http://hdl.handle.net/10232/00032138
• 連携機関・データベース: 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp

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