Gamma-ray spectrometric analysis of elements in normal human enamel

Söremark, Rune; Samsahl, K.

doi:10.1016/0003-9969(61)90046-2

Cited by 67 publications

(11 citation statements)

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“…Lower con centrations are reported by Soremark and Samsahl [1961] who report a mean value for copper in enamel of 0.26 ppm and 0.21 ppm for dentine. H ardwick and Martin [1967] in a semiquantitative estimation reported levels of the order of 10 ppm for ashed enamel and a slightly higher concentration for ashed dentine.…”

Section: Trace Elements In Dental Plaquementioning

confidence: 91%

“…These concentrations ranged from 211-260 ppm for permanent teeth. Soremark and Samsahl [1961] found a mean value of 276 ppm using neutron activation analysis but no attempt was made to separate the enamel into layers. Brudevold et al [1963] using spectrographic methods of analysis on erupted teeth found that concentrations ranged from 430-2,100 ppm.…”

Section: Trace Elements In Dental Plaquementioning

confidence: 99%

“…N ixon, L ivingston and Smith [1967] report that con centrations ranging from 2.01-0.34 ppm were found again with higher concentra tions of manganese on the outer enamel layer. A mean value of 0.54 ppm has been given by Soremark and Samsahl [1961] and 0.25 ppm by Battistone, F eldman and Reba [1967].…”

Section: Trace Elements In Dental Plaquementioning

confidence: 99%

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Trace Element Content of the Hard Dental Tissues and Dental Plaque

Nixon¹

1969

Caries Res

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Section: Trace Elements In Dental Plaquementioning

confidence: 91%

Section: Trace Elements In Dental Plaquementioning

confidence: 99%

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Trace Element Content of the Hard Dental Tissues and Dental Plaque

Nixon¹

1969

Caries Res

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“…Despite of these studies, conclusive mechanism of Sr anticarious effect is unclear 16) . Several restorative materials such as conventional type glass ionomer cements or resin composites containing fluoride and Sr (FSCMs) are assumed to enable uptake of fluorine (F) and Sr [17][18][19] by dental hard tissue. These elements contained in filled FSCMs are incorporated into enamel as precipitation of eluted elements into enamel surface and/or direct uptake by enamel cavity wall, and affect the de-and remineralization of the enamel 20,21) .…”

Section: Introductionmentioning

confidence: 99%

A new technique for analyzing trace element uptake by human enamel

et al. 2015

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Fluorine (F) and strontium (Sr) are key elements in the de-and remineralization of teeth. To quantitatively analyze the distribution of F and Sr, micro-particle-induced gamma/X-ray emission (PIGE/PIXE) technique was used. The cavities were prepared and filled with the fluoride-and Sr-containing restorative materials (FSCMs) in extracted human molars. The single-section enamel specimens were prepared by slicing from the buccal to lingual surface including the FSCMs. After 5 weeks of automatic pH cycling, the demineralization was calculated by integrated mineral loss (ΔIML) from transverse-microradiography. The distributions of F and Sr were analyzed by the PIGE/PIXE technique. The micro-PIGE/PIXE technique indicated a fluorine uptake difference between the enamel surface and enamel cavity wall. ΔIML of FSCMs were significantly lower than intact enamel. The micro-PIGE/PIXE technique enables measurement of F and Sr uptake from FSCMs into enamel, which would be beneficial for research on caries development and prevention.

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“…In the hard dental tissues, Br has been determined by spark source mass spec trometry (SSMS) [Curzon and Crocker, 1978] or neutron activation analysis (NAA) [Soremark and Samsahl, 1961;Re lief et al, 1971], These studies have not re vealed any specific pattern of distribution of Br through enamel or coronal dentine.…”

mentioning

confidence: 99%