Relationship between physical activity and mandibular growth: morphometric analysis of human facial skeleton and experiment using a mouse voluntary climbing exercise model

2018 Fiscal Year Final Research Report

• Project/Area Number: 16K20639
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Orthodontics/Pediatric dentistry
• Research Institution: Tokyo Medical and Dental University
• Principal Investigator: Shimizu Yasuhiro 東京医科歯科大学, 大学院医歯学総合研究科, 非常勤講師 (60631968)
• Research Collaborator: AOKI kazuhiro ; KAIFU yousuke
• Project Period (FY): 2016-04-01 – 2019-03-31
• Keywords: 身体運動 / 咀嚼刺激 / 顎骨成長 / 顎骨形態 / 咬筋

Outline of Final Research Achievements

We have shown that physical activity during growth period may affect morphological changes in the mandible using by a mouse voluntary climbing exercise model.
In human specimens, morphometric analysis between high ranked warrior and townspeople in the Edo period and between races in modern women (Japanese and Spanish) suggested that differences in masticatory muscle movement may affect morphological changes in the mandible.

Free Research Field

矯正歯科

Academic Significance and Societal Importance of the Research Achievements

研究成果として成長期における生活習慣が顎骨形態に影響を与える可能性が示唆された。
歯科領域において成長期に顎骨の成長をコントロールすることは正常咬合を獲得する上で重要であるため、顎骨成長に与える要因を明らかにすることは臨床的意義が高い。顎骨の成長を鑑みた成長期における生活習慣の重要性が明らかとなれば、将来の応用展開に向けた学術基盤を構築することとなり、社会的意義は大きいと考える。