{"created":"2023-07-25T08:15:15.485712+00:00","id":16533,"links":{},"metadata":{"_buckets":{"deposit":"b2d31f33-e070-4947-9029-bb23298af159"},"_deposit":{"created_by":18,"id":"16533","owners":[18],"pid":{"revision_id":0,"type":"depid","value":"16533"},"status":"published"},"_oai":{"id":"oai:ir.kagoshima-u.ac.jp:00016533","sets":["57:86"]},"author_link":["142164"],"control_number":"16533","item_5_date_6":{"attribute_name":"作成日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2023-03-03","subitem_date_issued_type":"Collected"}]},"item_5_date_granted_54":{"attribute_name":"学位授与年月日 ","attribute_value_mlt":[{"subitem_dategranted":"2023-03-23"}]},"item_5_degree_grantor_53":{"attribute_name":"学位授与機関","attribute_value_mlt":[{"subitem_degreegrantor":[{"subitem_degreegrantor_language":"ja","subitem_degreegrantor_name":"鹿児島大学"}],"subitem_degreegrantor_identifier":[{"subitem_degreegrantor_identifier_name":"17701","subitem_degreegrantor_identifier_scheme":"kakenhi"}]}]},"item_5_degree_name_42":{"attribute_name":"学位名","attribute_value_mlt":[{"subitem_degreename":"博士(歯学)","subitem_degreename_language":"ja"},{"subitem_degreename":"Doctor of Philosophy in Dental Science","subitem_degreename_language":"en"}]},"item_5_description_17":{"attribute_name":"ファイル（説明）","attribute_value_mlt":[{"subitem_description":"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","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_5_description_4":{"attribute_name":"要約(Abstract)","attribute_value_mlt":[{"subitem_description":"Objectives: This study aimed to clarify the effect of palatine tonsil hypertrophy-induced ventilation obstruction on maxillofacial dentition morphology using computational fluid dynamics (CFD) to represent tongue posture and maxillofacial dentition three dimensionally.\nMaterials and methods: We analyzed data of 20 patients with tonsil hypertrophy (tonsil hypertrophy group (TG); 9.0 years old, seven boys) and a comparison group (CG) of 20 patients without tonsil hyperplasia (comparison group; 9.4 years old, 10 boys). Cone-beam computed tomography and CFD data were used to assess the effects of palatine tonsil hypertrophy on pharyngeal airway ventilation, tongue posture, and morphology of the maxillofacial dentition.\nResults: The TG exhibited significantly greater depth, narrower width, smaller cross-sectional area of the pharyngeal airway, and narrower maxillary dental arch with Class II than the CG. Additionally, the tongue was positioned significantly more anteriorly and inferiorly in the TG than that in the CG.\nConclusions: Our data suggest that hypertrophy of the palatine tonsils narrows the pharyngeal airway, resulting in a smaller cross-sectional area. Widening of the pharyngeal airway may occur due to compensatory anterior displacement of the tongue to prevent ventilation obstruction. This may decrease palatal support, disturbing the pressure balance of the maxillary molar region between the buccal and palatal sides and resulting in lateral undergrowth of the maxillary bone and narrowing of the maxillary dental arch.\n\nYoichiro Oku, Tomonori Iwasaki, Toshiya Tsujii, Rina Sakoda-Iwata, Soujiro Hisagai, Yuusuke Ban, Hideo Sato, Hitomi Ishii, Ryuzo Kanomi, Youichi Yamasaki\nEffect of palatine tonsil hypertrophy on tongue posture and maxillofacial dentition: A pharyngeal airway computational fluid dynamics study\nPediatric Dental Journal 33 (2023) 42-51\nhttps://doi.org/10.1016/j.pdj.2023.01.003","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_5_dissertation_number_55":{"attribute_name":"学位授与番号","attribute_value_mlt":[{"subitem_dissertationnumber":"甲総研第689号"}]},"item_5_publisher_23":{"attribute_name":"公開者・出版者","attribute_value_mlt":[{"subitem_publisher":"Elsevier","subitem_publisher_language":"en"},{"subitem_publisher":"鹿児島大学","subitem_publisher_language":"ja"}]},"item_5_subject_15":{"attribute_name":"NDC","attribute_value_mlt":[{"subitem_subject":"490","subitem_subject_scheme":"NDC"}]},"item_5_text_44":{"attribute_name":"備考","attribute_value_mlt":[{"subitem_text_language":"ja","subitem_text_value":"【指導教員:山﨑要一】"}]},"item_5_text_47":{"attribute_name":"date.appl","attribute_value_mlt":[{"subitem_text_value":"【学位申請日】2023-02-01"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"奥, 陽一郎","creatorNameLang":"ja"},{"creatorName":"オク, ヨウイチロウ","creatorNameLang":"ja-Kana"},{"creatorName":"Oku, Yoichiro","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"142164","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2023-03-14"}],"filename":"Diss_奥_陽一郎_ISK689_2022.pdf","filesize":[{"value":"1.3 MB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"label":"Diss_奥_陽一郎_ISK689_2022","objectType":"fulltext","url":"https://ir.kagoshima-u.ac.jp/record/16533/files/Diss_奥_陽一郎_ISK689_2022.pdf"},"version_id":"61861c9e-5990-47c4-8cbb-74c6b51081ca"},{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2023-03-14"}],"displaytype":"detail","filename":"Abstract_奥_陽一郎_4519800028_2022.pdf","filesize":[{"value":"23.5 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"Abstract_奥_陽一郎_4519800028_2022","objectType":"abstract","url":"https://ir.kagoshima-u.ac.jp/record/16533/files/Abstract_奥_陽一郎_4519800028_2022.pdf"},"version_id":"d904b1a1-6d66-4a2d-8a20-333d17ee58ba"},{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2023-04-19"}],"displaytype":"detail","filename":"Result_OKU_Yoichiro_isk_689.pdf","filesize":[{"value":"131.8 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"Result_OKU_Yoichiro_isk_689","objectType":"other","url":"https://ir.kagoshima-u.ac.jp/record/16533/files/Result_OKU_Yoichiro_isk_689.pdf"},"version_id":"550754d8-f495-4d2e-af7f-4174dc38103b"},{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2023-04-19"}],"displaytype":"detail","filename":"Comments_OKU_Yoichiro_isk_689.pdf","filesize":[{"value":"57.5 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"Comments_OKU_Yoichiro_isk_689","objectType":"other","url":"https://ir.kagoshima-u.ac.jp/record/16533/files/Comments_OKU_Yoichiro_isk_689.pdf"},"version_id":"22eef875-bb25-4dfb-9d53-41f7a14c3098"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Tonsil","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Tongue posture","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Maxillofacial dentition","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Pharyngeal airway","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Computational fluid dynamics","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"doctoral thesis","resourceuri":"http://purl.org/coar/resource_type/c_db06"}]},"item_title":"Effect of palatine tonsil hypertrophy on tongue posture and maxillofacial dentition: A pharyngeal airway computational fluid dynamics study","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Effect of palatine tonsil hypertrophy on tongue posture and maxillofacial dentition: A pharyngeal airway computational fluid dynamics study","subitem_title_language":"en"},{"subitem_title":"口蓋扁桃肥大が舌の姿勢と顎顔面歯列形態に及ぼす影響 : 咽頭気道流体力学的研究","subitem_title_language":"ja"}]},"item_type_id":"5","owner":"18","path":["86"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2023-03-14"},"publish_date":"2023-03-14","publish_status":"0","recid":"16533","relation_version_is_last":true,"title":["Effect of palatine tonsil hypertrophy on tongue posture and maxillofacial dentition: A pharyngeal airway computational fluid dynamics study"],"weko_creator_id":"18","weko_shared_id":-1},"updated":"2024-05-08T05:23:45.308442+00:00"}