title: Differences in co-variation of inorganic elements in the bulk and surface of human deciduous enamel: an induction analysis study.
abstract: This paper demonstrates a method for determination of co-variation between some inorganic elements in the bulk and surface areas of human tooth enamel. The technique is based on a computerised induction analysis of data obtained by secondary ion mass spectrometry (SIMS). When comparing the present data with an earlier study from our laboratory, it became evident that with only a moderate increase in the amount of data for the induction analysis, the results increased very considerably in reliability and precision. The patterns of co-variation between different elements differed between the bulk- and surface enamel. Only Mg expressed a similar pattern. In the bulk enamel the elements Na and P expressed a high degree of co-variation. Similarly, Mg and C expressed a high degree of co-variation. Mg was an element often found to co-vary with bulk enamel elements. In the enamel surface, F and Cl co-varied. In addition, Cl was an element often found to co-vary with other enamel surface elements.
authors.affiliation: Department of Pedodontics, Faculty of Odontology, Göteborg University, Sweden. Tobias.Nilsson@odontologi.gu.se
authors.forename: T
authors.initials: T
authors.lastname: Nilsson
authors.forename: T
authors.initials: T
authors.lastname: Lundgren
authors.forename: H
authors.initials: H
authors.lastname: Odelius
authors.forename: U
authors.initials: U
authors.lastname: Jönsson
authors.forename: R
authors.initials: R
authors.lastname: Sillén
authors.forename: J G
authors.initials: JG
authors.lastname: Norén
mesh_terms: D002244:Carbon / Q000032:analysis; D002712:Chlorides / Q000032:analysis; D003743:Dental Enamel / Q000737:chemistry*; D004602:Elements; D005461:Fluorine / Q000032:analysis; D006801:Humans; D008274:Magnesium / Q000032:analysis; D010758:Phosphorus / Q000032:analysis; D011188:Potassium / Q000032:analysis; D012964:Sodium / Q000032:analysis; D018629:Spectrometry, Mass, Secondary Ion / Q000379:methods; D013324:Strontium / Q000032:analysis; D014094:Tooth, Deciduous / Q000737:chemistry*
chemical_list: D002712:Chlorides; D004602:Elements; D010758:Phosphorus; D005461:Fluorine; D002244:Carbon; D012964:Sodium; D008274:Magnesium; D011188:Potassium; D013324:Strontium