Details of the Researcher

PHOTO

Hiroki Ogura
Section
Graduate School of Dentistry
Job title
Assistant Professor
e-Rad No.
80982420

Research History 3

  • 2025/08 - Present
    Tohoku University

  • 2023/04 - 2025/07
    東北大学病院　矯正歯科　医員

  • 2018/04 - 2019/03
    東北大学病院　卒後研修センター　研修医

Education 2

  • Tohoku University

    2019/04 - 2023/03

  • Tohoku University

    2012/04 - 2018/03

Professional Memberships 4

  • 日本小児歯科学会

  • 東北矯正歯科学会

  • 日本顎変形症学会

  • 日本矯正歯科学会

Research Interests 1

  • 歯科矯正学

Papers 3

  1. Three-Dimensional Evaluation of Treatment Effects and Post-Treatment Stability of Maxillary Molar Intrusion Using Temporary Anchorage Devices in Open Bite Malocclusion. International-journal Peer-reviewed

    Hiroki Ogura, Kento Numazaki, Toshihito Oyanagi, Masahiro Seiryu, Arata Ito, Takahiro Noguchi, Fumitoshi Ohori, Michiko Yoshida, Tomohiro Fukunaga, Hideki Kitaura, Itaru Mizoguchi

    Journal of clinical medicine　13　(10)　2024/05/07

    DOI： 10.3390/jcm13102753 　

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    Background: We investigated treatment outcomes and post-treatment stability in 10 patients with an anterior open bite and nonsurgical orthodontics. Methods: The patients underwent maxillary molar intrusion using temporary anchorage devices (TADs) to deepen the overbite due to mandibular autorotation. Lateral cephalograms and dental cast models were obtained before treatment (T0), immediately after it (T1), and >1 year after it (T2). Skeletal and dental cephalometric changes and three-dimensional movements of the maxillary dentitions were evaluated. Results: At T0, cephalometric analysis indicated that patients had skeletal class I with tendencies for a class II jaw relationship and a skeletal open bite. During active treatment (T0 to T1), the maxillary first molar intruded by 1.6 mm, the mandibular first molar extruded by 0.3 mm, the Frankfort-mandibular plane angle decreased by 1.1°, and the overbite increased by 4.1 mm. Statistically significant changes were observed in the amount of vertical movement of the maxillary first molar, Frankfort-mandibular plane angle, and overbite. Three-dimensional (3D) dental cast analysis revealed that the maxillary first and second molars intruded, whereas the anterior teeth extruded, with the second premolar as an infection point. In addition, the maxillary molar was tipped distally by 2.9° and rotated distally by 0.91°. Statistically significant changes were observed in the amount of vertical movement of the central incisor, lateral incisor, canine and first molar, and molar angulation. From T1 to T2, no significant changes in cephalometric measurements or the 3D position of the maxillary dentition were observed. The maxillary and mandibular dentitions did not significantly change during post-treatment follow-up. Conclusions: Maxillary molar intrusion using mini-screws is an effective treatment for open bite correction, with the achieved occlusion demonstrating 3D stability at least 1 year after treatment.

  2. Functional improvement of mesial movement of mandibular right second and third molars in the treatment of maxillary protrusion with congenitally missing maxillary lateral incisors Peer-reviewed

    福永智広, 吉澤光弘, 吉澤光弘, 茂見翔平, 小倉裕樹, 溝口到

    Clinical and Investigative Orthodontics (Japanese Edition)　83　(2)　2024

    ISSN： 2436-8652

  3. Three-dimensional morphologic analysis of the maxillary alveolar bone after anterior tooth retraction with temporary anchorage devices. International-journal Peer-reviewed

    Arata Ito, Atsushi Mayama, Toshihito Oyanagi, Hiroki Ogura, Masahiro Seiryu, Tomohiro Fukunaga, Hideki Kitaura, Itaru Mizoguchi

    The Angle orthodontist　93　(6)　667-674　2023/11/01

    DOI： 10.2319/120122-827.1 　

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    OBJECTIVES: To investigate three-dimensional (3D) morphologic changes in the alveolar bone around the maxillary central incisors of patients who underwent premolar extraction and subsequent anterior tooth retraction using temporary anchorage devices (TADs). MATERIALS AND METHODS: The subjects consisted of 16 patients with bimaxillary protrusion. The maxillary anterior teeth were retracted using sliding or loop mechanics and TADs for anchorage reinforcement. Cephalograms and computed tomography scans taken pretreatment and posttreatment were registered with respect to the palatal structures. The movement of the maxillary central incisors and morphologic changes in the anterior alveolar bone were evaluated quantitatively. RESULTS: Displacement in the palatal direction was observed in the alveolar bone around the incisors and the interdental septum. The displacement and bone remodeling/tooth movement ratio were larger on the labial side than the palatal side, and decreased progressively from the crest to apex level. The bone thickness was significantly increased on the labial side and decreased on the palatal side. CONCLUSIONS: Regional differences exist in morphologic changes of the alveolar bone during anterior tooth retraction using TADs. Attention should be paid to the crest region of the palatal alveolar bone because of its small original thickness and low remodeling activity.

Misc. 14

  1. Functional changes and stability of a case of unilateral condylar hyperplasia treated with ipsilateral condylectomy and orthodontic treatment

    福永智広, 野上晋之介, 小倉裕樹, 沼崎研人, 高橋哲, 山内健介, 北浦英樹

    日本顎変形症学会雑誌　35　(2)　2025

    ISSN： 0916-7048

  2. A case of orthognathic treatment for mandibular prognathism with mobile teeth due to chronic periodontitis

    沼崎研人, 武田裕利, 福永智広, 小倉裕樹, 山内健介, 北浦英樹

    日本顎変形症学会雑誌　35　(2)　2025

    ISSN： 0916-7048

  3. 上顎歯槽骨・骨体の前歯部唇側面の三次元的形態-側面セファロトレース像とCT像の比較-

    伊藤新, 小倉裕樹, 溝口到

    東北矯正歯科学会大会抄録集(Web)　41st　2025

  4. Three-Dimensional Evaluation and Post-Treatment Stability of Maxillary Molar Intrusion Using mini-screws in Open Bite Malocclusion

    小倉裕樹, 北浦英樹, 福永智広, 清流正弘, 吉田倫子, 伊藤新, 大柳俊仁, 大堀文俊, 野口隆弘, 沼崎研人, 溝口到

    日本矯正歯科学会大会プログラム・抄録集　83rd　2024

  5. 歯科矯正用アンカースクリューを用いた開咬症例の矯正歯科治療

    野口隆弘, 小倉裕樹, 北浦英樹, 溝口到

    東北矯正歯科学会雑誌　31　(1)　2023

    ISSN： 1340-2668

  6. A Case of Mandibular Prognathism with Deistal Extension Defect and Intercalary Defect Undergone Orthognathic Surgery

    沼崎研人, 清流正弘, 山内健介, 依田信裕, 真山敦, 大柳俊仁, 小倉裕樹, 溝口到

    日本顎変形症学会雑誌　32　(2)　2022

    ISSN： 0916-7048

  7. 歯科矯正用アンカースクリューを用いた上顎前歯牽引症例における歯槽骨の形態変化の解析

    伊藤新, 真山敦, 大柳俊仁, 小倉裕樹, 清流正弘, 溝口到

    東北矯正歯科学会大会抄録集(Web)　38th　2022

  8. Evaluation of changes in the alveolar bone following anterior teeth retraction with orthodontic anchor screws

    伊藤新, 真山敦, 大柳俊仁, 小倉裕樹, 清流正弘, 溝口到

    日本矯正歯科学会大会プログラム・抄録集　80th　2021

  9. Comparison of relapse of open bite patients treated with orthodontic anchor screw and surgical orthodontics

    小倉裕樹, 北浦英樹, 大柳俊仁, 清流正弘, 真山敦, 伊藤新, 溝口到

    日本矯正歯科学会大会プログラム・抄録集　80th　2021

  10. Five-year clinical investigation of the anchor screws using for surgical orthodontic treatment

    佐々木周太郎, 真山敦, 大柳俊仁, 伊藤新, 小倉裕樹, 清流正弘, 溝口到

    日本顎変形症学会雑誌　30　(2)　2020

    ISSN： 0916-7048

  11. 保険適応後5年間における顎変形症患者に適用した歯科矯正用アンカースクリューの動向調査

    真山敦, 佐々木周太郎, 大柳俊仁, 伊藤新, 小倉裕樹, 清流正弘, 溝口到

    東北矯正歯科学会雑誌　28　(1)　2020

    ISSN： 1340-2668

  12. 東北大学病院矯正歯科における10年間の先天性疾患症例の実態調査

    佐々木聡史, 北浦英樹, 前田敏博, 小川紗衣香, 小倉裕樹, 亀田真衣, 金城里阿, 茂見翔平, 沼崎研人, 溝口到

    東北矯正歯科学会雑誌　28　(1)　2020

    ISSN： 1340-2668

  13. Five-year Clinical Investigation of Orthodontic Anchor Screws used for Patients with Jaw Deformity in Orthodontics, Tohoku University Hospital

    佐々木周太郎, 真山敦, 大柳俊仁, 伊藤新, 小倉裕樹, 清流正弘, 溝口到

    東北矯正歯科学会雑誌　28　(1)　2020

    ISSN： 1340-2668

  14. Changes in maxillofacial morphology in mandibular prognathic patients treated with sagittal ramus split osteotomy

    真山敦, 清流正弘, 小倉裕樹, 大柳俊仁, 伊藤新, 佐々木周太郎, 山内健介, 高橋哲, 溝口到

    日本顎変形症学会雑誌　30　(2)　2020

    ISSN： 0916-7048

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Presentations 1

  1. 開咬症例における歯科矯正用アンカースクリューを用いた矯正歯科治療後戻りの3次元的解析 Invited

    小倉裕樹

    第40回東北矯正歯科学会学術大会　2025/06/07