International comparative study on craniofacial morphology of Mongolian adolescents

2017 Fiscal Year Final Research Report

• Project/Area Number: 25305037
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 海外学術
• Research Field: Orthodontics/Pediatric dentistry
• Research Institution: Tokyo Medical and Dental University
• Principal Investigator: MORIYAMA Keiji 東京医科歯科大学, 大学院医歯学総合研究科, 教授 (20262206)
• Co-Investigator(Kenkyū-buntansha): 川口 陽子 東京医科歯科大学, 大学院医歯学総合研究科, 教授 (20126220) ; 稲澤 譲治 東京医科歯科大学, 難治疾患研究所, 教授 (30193551) ; 田中 敏博 東京医科歯科大学, 統合研究機構, 教授 (50292850) ; 小川 卓也 東京医科歯科大学, 大学院医歯学総合研究科, 講師 (50401360) ; 藤原 武男 東京医科歯科大学, 大学院医歯学総合研究科, 教授 (80510213)
• Research Collaborator: BAZAR Amarsaikhan ; GANBRUGED Ganjargal ; TUMUKHUU Tsasan ; YASUDA Yuko ; ARAKI Miyu
• Project Period (FY): 2013-04-01 – 2018-03-31
• Keywords: 歯学 / 疫学 / 顎顔面形態 / モンゴル国

Outline of Final Research Achievements

Since 1990, socioeconomic environment has changed drastically in Mongolia, change in traditional life style, food component, living environment and health system transition raised health related issues. The purpose of this study was to reveal etiologic mechanism of malocclusion and influence of malocclusion on children’s health, by comparative study of the maxillofacial morphology of Japanese and Mongolian with the same race but different environmental/social factors.
Our overseas scientific investigation of maxillofacial morphology in a population-based sample of Mongolia revealed that socioeconomic factors in adolescent children influence prevalence of malocclusion and that specific types of malocclusion, increased overjet and deep bite, were associated with oral health-related quality of life.

Free Research Field

歯科矯正学