title: Tooth loss and intakes of nutrients and foods: a nationwide survey of Japanese dentists.
abstract: OBJECTIVE
  To clarify the association of tooth loss with dietary intakes among dentists, for whom sufficient dental care is available.
  
  
  METHODS
  We analyzed the data from 20 366 Japanese dentists (mean age +/- SD, 52.2 +/- 12.1 years; women 8.0%) who participated in a nationwide cohort study from 2001 to 2006. The baseline questionnaire included a validated food-frequency questionnaire to estimate intakes of foods and nutrients. We computed the geometric means of daily intakes by the number of teeth, adjusting for age, sex, smoking, physical activity, and history of diabetes.
  
  
  RESULTS
  The mean intakes of some key nutrients and food groups, such as carotene, vitamins A and C, milk and dairy products, and vegetables including green-yellow vegetables, decreased with the increasing number of teeth lost (P for trend <0.05). On the contrary, mean intakes of carbohydrate, rice, and confectioneries were increased among those with fewer teeth (P for trend <0.05). The difference in the geometric mean (%) between totally edentulous subjects and those with > or =25 teeth, that is [(Geometric mean for > or =25 teeth) - (Geometric mean for 0 teeth)]/(Geometric mean for > or =25 teeth) x 100, was 14.3%, 8.6%, 6.1%, and -6.1% for carotene, vitamin C, vitamin A, and carbohydrate, respectively. For food groups, it was 26.3%, 11.9%, 5.6%, -9.5%, and -29.6% for milk and dairy products, green-yellow vegetables, total vegetables, rice, and confectioneries, respectively.
  
  
  CONCLUSIONS
  Tooth loss was linked with poorer nutrition even among dentists.
authors.affiliation: Department of Preventive Medicine/Biostatistics and Medical Decision Making, Nagoya University Graduate School of Medicine, Nagoya, Japan. wakai@med.nagoya-u.ac.jp
authors.forename: Kenji
authors.initials: K
authors.lastname: Wakai
authors.forename: Mariko
authors.initials: M
authors.lastname: Naito
authors.forename: Toru
authors.initials: T
authors.lastname: Naito
authors.forename: Masaaki
authors.initials: M
authors.lastname: Kojima
authors.forename: Haruo
authors.initials: H
authors.lastname: Nakagaki
authors.forename: Osami
authors.initials: O
authors.lastname: Umemura
authors.forename: Makoto
authors.initials: M
authors.lastname: Yokota
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Hanada
authors.forename: Takashi
authors.initials: T
authors.lastname: Kawamura
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D001205:Ascorbic Acid / Q000008:administration & dosage; D002182:Candy / Q000706:statistics & numerical data; D002338:Carotenoids / Q000008:administration & dosage; D015331:Cohort Studies; D003611:Dairy Products / Q000706:statistics & numerical data; D003815:Dentists; D003920:Diabetes Mellitus / Q000453:epidemiology; D004032:Diet / Q000706:statistics & numerical data*; D004040:Dietary Carbohydrates / Q000008:administration & dosage; D005247:Feeding Behavior; D005260:Female; D006801:Humans; D007564:Japan / Q000453:epidemiology; D007576:Jaw, Edentulous, Partially / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009043:Motor Activity / Q000502:physiology; D009066:Mouth, Edentulous / Q000453:epidemiology; D009752:Nutritional Status; D012275:Oryza; D012737:Sex Factors; D012907:Smoking / Q000453:epidemiology; D016388:Tooth Loss / Q000453:epidemiology*; D014675:Vegetables; D014801:Vitamin A / Q000008:administration & dosage
chemical_list: D004040:Dietary Carbohydrates; D014801:Vitamin A; D002338:Carotenoids; D001205:Ascorbic Acid