2021 Fiscal Year Final Research Report

The mouth breathing diagnostic system construction that enables optimal medical care

Research Project

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Project/Area Number	19K10408
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Review Section	Basic Section 57070:Developmental dentistry-related
Research Institution	Kagoshima University
Principal Investigator	Murakami Daisuke 鹿児島大学, 医歯学域歯学系, 講師 (80611798)
Co-Investigator(Kenkyū-buntansha)	稲田絵美鹿児島大学, 医歯学域鹿児島大学病院, 講師 (30448568) 海原康孝大垣女子短期大学, その他部局等, 教授 (60274106) 齊藤一誠朝日大学, 歯学部, 教授 (90404540) 櫻井薫広島大学, 病院(歯), 助教 (90794793)
Project Period (FY)	2019-04-01 – 2022-03-31
Keywords	口呼吸
Outline of Final Research Achievements	This study aimed to clarify the relevant factors affecting MBS in children and to establish MBS treatment. Our study have shown the rate of an incompetent lip seal (ILS) seems to increase with age in children, throughout Japan. Therefore, this disorder may not self-correct during the growth periods in these children. An ILS affects MBS in children. In addition, the factors associated with MBS in preschool-aged children were not mutually unrelated, and multiple factors such as general conditions, lifestyle, and eating habits may interact with one another. Furthermore, children with an ILS already tended to have a flattened nose and an anteriorly prominent lip at 3 years of age, implying that the adverse effects of an ILS on the growth of the craniofacial region appear relatively early. These results suggest the importance of early diagnosis and treatment of MBS. Early treatment of MBS may prevent possible dental and physical problems in the future.
Free Research Field	小児歯科学
Academic Significance and Societal Importance of the Research Achievements	近年、口呼吸は歯科と医科が連携して取り組むべき重要な問題として取り上げられるようになり、「歯科医学」ではなく「口腔医学」という概念のもとで、全身の健康を見据えた領域として認識されるようになってきた。しかし、口呼吸を有する小児の治療において、歯科と医科がそれぞれの専門性を活かした適切な連携はできていない現状がある。本研究の結果は、口呼吸について関連する因子を分類化できた点、顎顔面に及ぼす影響を明らかにできた点、病態への早期介入の必要性が示唆された点において、口呼吸の診断や改善を図るための医科歯科連携を強化しうる知見であり、正確な治療介入法の選択へとつながると考える。