title: Relationship between nutrition status and dental occlusion in community-dwelling frail elderly people.
abstract: OBJECTIVE
  This study aimed to determine the risk of malnutrition in some communities where the frail elderly receive public long-term care insurance. We also clarified the dental problems in those at risk of malnutrition.
  
  
  METHODS
  A total of 716 frail elderly who lived in eight cities in Japan (240 males and 476 females with a mean age of 83.2±8.6 years) were divided into three groups according to Mini Nutritional Assessment short form results: well nourished, at risk of malnutrition and malnourished. They were also divided into three groups in terms of remaining teeth occlusion and denture occlusion: group A, natural dentition with adequate function; group B, partially or fully edentulous, but maintaining functional occlusion with dentures in either or both jaws; and group C, functionally inadequate occlusion with no dentures. The relationship between nutrition status and dental occlusion was evaluated using logistic regression analysis with sex, age, activities of daily living and cognitive function as covariates.
  
  
  RESULTS
  The number of participants in each of the groups was as follows: 251 well nourished, 370 at risk of malnutrition and 95 malnourished. When they were divided into just two groups, (i) well nourished and (ii) at risk of malnutrition plus malnourished, in order to study malnutrition risk factors, there were significant relationships between their nutritious status and sex, Barthel index, and occlusion.
  
  
  CONCLUSIONS
  This large-scale cross-sectional survey showed that loss of natural teeth occlusion was a risk factor for malnutrition among community-dwelling frail elderly.
authors.affiliation: Division of Oral Rehabilitation, the Nippon Dental University Graduate School of Life Dentistry, Tokyo, Japan.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Kikutani
authors.forename: Mitsuyoshi
authors.initials: M
authors.lastname: Yoshida
authors.forename: Hiromi
authors.initials: H
authors.lastname: Enoki
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Yamashita
authors.forename: Sumio
authors.initials: S
authors.lastname: Akifusa
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Shimazaki
authors.forename: Hirohiko
authors.initials: H
authors.lastname: Hirano
authors.forename: Fumio
authors.initials: F
authors.lastname: Tamura
mesh_terms: D000369:Aged, 80 and over; D000704:Analysis of Variance; D016009:Chi-Square Distribution; D003430:Cross-Sectional Studies; D003766:Dental Occlusion; D005260:Female; D016330:Frail Elderly; D015577:Geriatric Assessment / Q000379:methods*; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008297:Male; D015596:Nutrition Assessment; D009748:Nutrition Disorders / Q000453:epidemiology*; D009752:Nutritional Status; D012307:Risk Factors; D012737:Sex Factors