Applications of PIXE to studies in dental and mental healths

Chaudhri, M. Anwar; Ainsworth, Thomas

doi:10.1016/0029-554x(81)90632-7

Cited by 33 publications

(8 citation statements)

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“…The statistical analysis is much higher, reaching 50% in some cases, taking into consideration the big variability of each element for the several teeth and inside each tooth. In the same table are also presented results from the literature, for healthy people [4,9,11].…”

Section: Resultsmentioning

confidence: 65%

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X-ray microprobe synchroton radiation X-ray fluorescence application on human teeth of renal insufficiency patients

Marques

Casaca

et al. 2004

Spectrochimica Acta Part B: Atomic Spectroscopy

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Section: Resultsmentioning

confidence: 65%

“…Trace element concentrations have been studied for their possible role in dental health by PIXE [4,5] and EDXRS techniques [6]. A few trace elements have been studied in teeth not only for their possible role in dental health, but also as indicators for heavy metals exposure.…”

Section: Introductionmentioning

confidence: 99%

X-ray microprobe synchroton radiation X-ray fluorescence application on human teeth of renal insufficiency patients

Marques

Casaca

et al. 2004

Spectrochimica Acta Part B: Atomic Spectroscopy

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“…In Table 1 the mean and range of the elemental contents for dentine root and crown, pulp and enamel obtained with the SRXRF microbeam technique are listed, together with results taken from the literature. 3,4,7,9,14 The average corresponds to the total number of points, N, analysed for each scan performed for all the tooth samples of each population. A maximum of 75 points was used in some cases for root dentine and a minimum of 18 was obtained for pulp.…”

Section: Resultsmentioning

confidence: 99%

“…Tooth is an interesting bio-indicator and can provide information concerning environmental and dietary habits. 1,2 Trace element concentrations have been studied for their possible role in dental health by PIXE 3,4 and EDXRS techniques. 5,6 In addition to fluorine, considered one of the key factors in dental health, a few trace elements have been studied in teeth not only for their possible role in dental health, but also as indicators of heavy metals exposure.…”

Section: Introductionmentioning

confidence: 99%

Human teeth elemental profiles measured by synchrotron x‐ray fluorescence: dietary habits and environmental influence

et al. 2001

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This paper reports on the measurements of elemental profiles in teeth collected from two different populations, both living in isolated Portuguese islands of the Azores: S. Miguel and Terceira. Both populations are good producers of cattle, in spite of the proximity of the sea. The purpose of this work was to establish the influence of basic diet, based on meat, fish and dairy products, on teeth elemental content. Moreover, for a few elements, the differences between concentrations in corresponding regions of teeth was correlated with the proximity of the sea for the subjects of one of the islands. An x-ray fluorescence set-up with microprobe capabilities, installed at the LURE synchrotron (France), was used for elemental determination. The resolution of the synchrotron microprobe was 100 µm and the energy of the incident photons was 18 keV. Concentration profiles of Fe, Cu, Zn, Br, Sr and Pb in different parts of a tooth are discussed and correlated for both populations. The teeth collected for both populations show a similar behaviour with respect to the elemental distribution. Mn and Cu occur at low concentrations and they are almost constant in all the studied parts of teeth. The content of Sr is higher in the external enamel while the concentrations of Fe, Zn, Br and Pb increase in the inner part of the teeth. However, the contents of Br and Pb are different in the two populations. Higher levels of both elements were found in Terceira subjects. Moreover, the Sr concentration levels indicate that the diet of the studied individuals is richer in meat than in fish.

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“…The trace elements in teeth have been examined for a number of reasons, for example there are some studies of dental health where trace element concentrations have been correlated with the presence of dental caries [1][2][3]. Some elements such as Al, Fe and Sr are caries inhibitory and Cu, Mn and Cd are caries promoting [2], however the combinations of Mn and Cd may have inhibitory role, while Al and Sr can promote caries.…”

Section: Introductionmentioning

confidence: 99%