Association of oral function with mental and physical senescence, and longevity: with a central focus on centenarians

2014 Fiscal Year Final Research Report

• Project/Area Number: 23390440
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Prosthodontics/ Dental materials science and
• Research Institution: Osaka University
• Principal Investigator: IKEBE Kazunori 大阪大学, 歯学研究科(研究院), 准教授 (70273696)
• Co-Investigator(Kenkyū-buntansha): KAGAWA Ryosuke 大阪大学, 歯学部附属病院, 医員 (40448147) ; OKADA Tadashi 大阪大学, 歯学部附属病院, 医員 (60733186)
• Co-Investigator(Renkei-kenkyūsha): GONDO Yasuyuki 大阪大学, 人間科学研究科, 准教授 (40250196) ; KAMIDE Kei 大阪大学, 医学系研究科, 教授 (80393239)
• Project Period (FY): 2011-04-01 – 2015-03-31
• Keywords: 高齢歯科学 / 健康長寿 / 口腔機能 / 咬合力 / 栄養 / 認知機能 / 運動機能

Outline of Final Research Achievements

The aim of this study was to investigate the association of oral function and health and longevity, and to show the significance of maintaining and recovering masticatory function. It was a part of a multidisciplinary research project focused on the health and longevity of older Japanese conducted not only by dentists but also nutritionists psychologists, sociologists, and geriatrics physicians.
We examined 1000 septuagenarians (69-71 years), 973 octogenarians (79-81 years), and 272 nonagenarians (89-91 years). As the results, multivariate analyses after adjusting for major confounding factors showed that the occlusal force was significantly related to nutrient intakes, cognitive function and motor function.

Free Research Field

歯科医学