Assessment the appropriate period to improve nasal breathing disorder using 4D masticatory motion analysis system

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K19260
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 57070:Developmental dentistry-related
• Research Institution: Tokyo Medical and Dental University
• Principal Investigator: Abe Yasunori 東京医科歯科大学, 医歯学総合研究科, 非常勤講師 (20822513)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: 成長期 / 鼻呼吸障害 / 皮質咀嚼野 / 咀嚼運動

Outline of Final Research Achievements

In recent years, the number of children with nasal obstruction during the growth period has been increasing, and it has been reported that nasal obstruction during the growth period impair morphogenesis, motor control function, memory and learning function of maxillofacial region. The purpose of this study was to evaluate the effects of nasal obstruction on the development of cortical masticatory areas and the development of masticatory movements caused by electrical stimulation of cortical masticatory areas at each stage of growth. As a result, it was clarified that the nasal obstruction during the growth period has the physiological effect on both central and peripheral developments of masticatory movement. This study suggests the importance of early diagnosis of deviation from normal development due to nasal obstruction during the growth period and appropriate treatment at the appropriate time.

Free Research Field

矯正歯科学

Academic Significance and Societal Importance of the Research Achievements

本研究では成長期鼻呼吸障害が咀嚼運動の発達に中枢および末梢の両側面に変調を与えることを明らかにし、成長期の鼻呼吸障害は早期に改善すべき重要性を科学的に立証した。本研究から得られる成果は早期矯正歯科治療のガイドラインの一助となりうる。また、従来の生理学的手法に物体の動きをデジタル的に記録する技術であるモーションキャプチャリングを融合した新たな手法を確立したことで、歯学全般、神経生理学、脳神経学、小児歯科学などの多岐にわたる分野への応用や、新しい学問分野の開拓など学術的な波及効果が期待できる。