title: Aluminum concentration in deciduous teeth is dependent on tooth type and dental status.
abstract: Aluminum (Al) concentration was assessed in deciduous teeth in relation to sex, year of birth, tooth type, and the presence of caries and roots. Three hundred and twenty-three deciduous teeth from children born during the period 1952 93 in a county in southeast Sweden were sampled, and the Al content determined by graphite furnace atomic absorption spectrophotometry. The arithmetic mean of the Al concentration was 0.58 +/- 0.64 ppm dry weight (mean +/- standard deviation) and differed significantly between incisors (1.05 +/- 1.04 ppm) and canines (0.48 +/- 0.50 ppm) and between incisors and molars (0.53 +/- 0.55 ppm). A significant difference was found between teeth with and without caries. No significant differences were found between sexes. The Al concentration correlated significantly with tooth weight for incisors (r = -0.47) and canines (r = -0.45) but not for molars (r = 0.03). No significant change in Al concentration was found over time. Caries-free deciduous molars are suggested as the most useful teeth for biological monitoring of aluminum.
authors.affiliation: Unit of Community Dentistry, Center for Public Health Sciences, and Faculty of Health Sciences, University of Linköping, Sweden. Arne.Halling@lio.se
authors.forename: A
authors.initials: A
authors.lastname: Halling
authors.forename: O
authors.initials: O
authors.lastname: Löfman
authors.forename: A R
authors.initials: AR
authors.lastname: Nosratabadi
authors.forename: C
authors.initials: C
authors.lastname: Tagesson
authors.forename: B
authors.initials: B
authors.lastname: Oster
mesh_terms: D000535:Aluminum / Q000032:analysis*; D000704:Analysis of Variance; D002648:Child; D003731:Dental Caries / Q000378:metabolism; D005260:Female; D006801:Humans; D016014:Linear Models; D008297:Male; D008963:Molar / Q000737:chemistry; D013054:Spectrophotometry, Atomic; D018709:Statistics, Nonparametric; D013997:Time Factors; D014092:Tooth Root / Q000737:chemistry; D014094:Tooth, Deciduous / Q000737:chemistry*
chemical_list: D000535:Aluminum