title: Fluoride intake in Japanese children aged 3-5 years by the duplicate-diet technique.
abstract: This study was conducted to determine the fluoride intakes in 94 preschool children aged 3, 4 and 5 (n = 30, 30, 34, respectively) residing in Yokkaichi, Mie Prefecture (< 0.16 ppm F water supply). The parents duplicated all the diets that their children ingested on 3 separate days during a 1-year period. The acid-diffusible fluoride in the diet was isolated by the acid-diffusion technique and measured with a fluoride electrode. The mean daily fluoride intakes from diet alone by children aged 3, 4 and 5 were 0.30 mg (n = 29, SD 0.19), 0.28 mg (n = 30, SD 0.19) and 0.30 mg (n = 34, SD 0.19), respectively. The total estimated mean values from diet and dentifrice were 0.35 mg (n = 29, SD 0.22, range 0.13-1.00), 0.33 mg (n = 30, SD 0.19, range 0.13-0.86) and 0.39 mg (n = 34, SD 0.18, range 0.18-1.01), respectively. It was concluded that the mean (+/-SD) total fluoride from diet and dentifrice in 3- to 5-year-old Japanese children was 0.35 +/- 0.19 mg/day (0.021 +/- 0.012 mg/kg body weight).
authors.affiliation: Department of Preventive Dentistry and Dental Public Health, School of Dentistry, Nagoya, Japan. alice@dpc.aichi-gakuin.ac.jp
authors.forename: T
authors.initials: T
authors.lastname: Murakami
authors.forename: N
authors.initials: N
authors.lastname: Narita
authors.forename: H
authors.initials: H
authors.lastname: Nakagaki
authors.forename: T
authors.initials: T
authors.lastname: Shibata
authors.forename: C
authors.initials: C
authors.lastname: Robinson
mesh_terms: D000704:Analysis of Variance; D002327:Cariostatic Agents / Q000008:administration & dosage* / Q000032:analysis; D002675:Child, Preschool; D003802:Dentifrices / Q000737:chemistry; D004032:Diet; D004034:Diet Surveys; D004058:Diffusion; D005260:Female; D005459:Fluorides / Q000008:administration & dosage* / Q000032:analysis; D005504:Food Analysis; D006801:Humans; D017736:Ion-Selective Electrodes; D007564:Japan; D008297:Male; D012833:Siloxanes
chemical_list: D002327:Cariostatic Agents; D003802:Dentifrices; D012833:Siloxanes; C015917:hexamethyldisiloxane; D005459:Fluorides