title: Influence of dental occlusion on physical fitness decline in a healthy Japanese elderly population.
abstract: The aim of this study was to clarify the relationship between dental occlusion and physical fitness by a longitudinal survey. A sample of 348 subjects (171 men and 177 women) aged 71 was investigated by Eichner index (EI) as an occlusal condition (Class A: no loss; Class B: partial loss; Class C: complete loss) and five types of physical fitness tests and were re-examined 8 years later. The upper 50% were sampled to analyze the correlation between each physical fitness decline and the EI at the baseline by logistic regression models. Logistic regression analyses revealed that leg extensor power (Class B vs. Class A; odds ratio=OR=4.61, p=0.010) and one-leg standing time with eyes open (Class C vs. Class A; OR=4.27, p=0.031) showed significant correlations with the EI at the baseline. In this study, partial or complete loss of occlusion was associated with a decline in leg extensor power or a decrease in one-leg standing time with eyes open. These findings suggest that maintenance of dental occlusion may prevent a decrease in activities of daily living in the elderly.
authors.affiliation: Division of Preventive Dentistry, Department of Oral Health Science, Graduate School of Medical and Dental Sciences, Niigata University, and Preventive Dentistry Clinic, Department of Oral Health Control, Niigata University Medical and Dental Hospital, 2-5274 Gakkocho-dori, Chuo-ku, Niigata 951-8520, Japan.
authors.forename: Naoko
authors.initials: N
authors.lastname: Okuyama
authors.forename: Takayuki
authors.initials: T
authors.lastname: Yamaga
authors.forename: Akihiro
authors.initials: A
authors.lastname: Yoshihara
authors.forename: Kaname
authors.initials: K
authors.lastname: Nohno
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Yoshitake
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Kimura
authors.forename: Mieko
authors.initials: M
authors.lastname: Shimada
authors.forename: Naoki
authors.initials: N
authors.lastname: Nakagawa
authors.forename: Mamoru
authors.initials: M
authors.lastname: Nishimuta
authors.forename: Masaharu
authors.initials: M
authors.lastname: Ohashi
authors.forename: Hideo
authors.initials: H
authors.lastname: Miyazaki
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D000375:Aging / Q000208:ethnology / Q000502:physiology*; D044466:Asian People; D003766:Dental Occlusion; D005260:Female; D018737:Hand Strength / Q000502:physiology; D006801:Humans; D007564:Japan / Q000453:epidemiology; D007866:Leg / Q000502:physiology; D016015:Logistic Models; D008137:Longitudinal Studies; D008297:Male; D016017:Odds Ratio; D010809:Physical Fitness / Q000502:physiology*; D004856:Postural Balance / Q000502:physiology; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires