Distribution of strontium in teeth from different geographic areas

Steadman, L.T.; Brudevold, F.; Smith, Frank A.

doi:10.14219/jada.archive.1958.0161

Cited by 41 publications

(16 citation statements)

References 7 publications

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“…Steadman et al [1958] found an almost uniform Sr distribution in enamel which was supported by other studies [Vrbic and Stupar, 1980;Noren et al, 1983;Frank et al, 1989], whereas Cutress [1972a] reported either higher surface or higher bulk [Sr] depending on the sample's origin. The concept of a Sr gradient in teeth was also supported by Little and Barrett [1976a,b], who reported higher [Nixon and Helsby, 1976].…”

Section: Sr In Teethsupporting

confidence: 80%

“…Although plausible, tThis theory cannot currently not be supported, primarily based onbecause previous studies [e.g. Steadman et al, 1958] which have failed to show associations between Sr and F. The potential consequences of these lattice substitutions have been studied by many investigators. Although there is some discrepancy, the majority of the literature supports the proposition that Sr incorporation into (carbonated) HAp increases its solubility, and that F greatly minimizes but not fully mitigates the negative effect of Sr [e.g.…”

Section: Discussionmentioning

confidence: 99%

“…To the author's' knowledge, only two studies [Steadman et al, 1958;Lundberg et al, 1965] were concerned with theconducted Sr analysis ofin enamel from unerupted, permanent teeth, thus limitingassuring that any Sr present incorporation into the dental hard tissues via systemic means would have been incorporated systemically. Both studies reported similar [Sr] in relation to the enamel of erupted teeth, suggesting that most of the Sr is incorporated before eruption and that little change in [Sr] in enamel occurs with age.…”

Section: Sr In Teethmentioning

confidence: 99%

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Strontium and Caries: A Long and Complicated Relationship

Lippert

Hara²

2012

Caries Res

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Investigations into the role of strontium (Sr) in caries prevention have attracted great interest in the research community in the past, with its peak in the 1970-and 80ies. To this date, no clear indication of the relative importance of Sr in caries prevention has been provided. A vast number of animal caries, epidemiological and mechanistic studies have been conducted. Albeit Although a great level ofthere is much discrepancyexists in the literature, the majority of studies suggest that Sr exhibits some cariostatic properties and, predominantly in the presence of fluoride (F). An optimum Sr concentration of 5 to 10 ppm in drinking water has been proposed as a direct result of several epidemiological caries studies. Despite these results, no direct link can be established between Sr and caries prevention as, to date, no relevant, randomized control trials have been reported. The extrapolation of potential cariostatic properties of Sr from epidemiological studies is difficult due to the co-presence of several other trace elements in the water of the study areas, with many of these elements being attributed cariostatic properties in their own right.

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Section: Sr In Teethsupporting

confidence: 80%

Section: Discussionmentioning

confidence: 99%

Section: Sr In Teethmentioning

confidence: 99%

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Strontium and Caries: A Long and Complicated Relationship

Lippert

Hara²

2012

Caries Res

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“…The ability of teeth to concentrate 9°Sr has been used as a means of monitoring the extent of atomic fall-out (Starkey & Fletcher, 1969). Even with no contribution from fall-out, Sr is a constant trace element in teeth, though wide variations are found in the enamel of different teeth and the range varies from 25 to 600 p.p.m, in teeth from different geographic areas (Steadman, Brudevold & Smith, 1958). Caries examinations conducted in three Ohio communities, two of which 0567-7408/80/071525-06501.00 had high levels of Sr and B in their drinking water and soil product (5.30 and 5.45 p.p.m, of Sr and 0.31 and 0.39 p.p.m, of B in water) and one of which contained low levels (0.20 p.p.m, of Sr and 0.04 p.p.m, of B in water), showed lower caries activity in the communities where drinking water contained a higher level of Sr and B (Curzon, Adkins, Bibby & Losee, 1970).…”

Section: Introductionmentioning

confidence: 99%

Structure of partially substituted chlorapatite (Ca2Sr)5(PO4)3Cl

Sudarsanan¹,

Young²

1980

Acta Crystallogr Sect B

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The structural location and effect of Sr partially substituting for Ca in chlorapatite, Cas(PO4)3C1, have been determined from crystal structure refinements with X-ray data from three synthetic single crystals having Sr/Ca ratios from 0.02 to ~1.0. The crystals are all hexagonal with space group P63/m. When present in small amounts, Sr substitutes only for Ca(2) on the mirror plane but at a slightly different position, as accommodates its larger ion radius. With 48% replacement of Ca by Sr, 68% of the Ca(2) sites and 19% of the Ca(I) sites (on the threefold axis) were filled by Sr. The CI atom shifts from 0,0,0.44 in chlorapatite to 0,0,½, its position in Srs(PO4)3CI, with increasing Sr content, dz/dA [where A is amount of Sr(2) present[ being greatest initially. Vegard's law is obeyed within 2a. The larger ion size and its preferential substitution on the border of the easy diffusion channel are the only observed features that could correlate with the known cariostatic effect of Sr in human tooth enamel or with the reported slight preferential loss of Sr that has replaced Ca in bone.

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“…Strontium is a constant trace element in teeth. Wide variations are found in the enamel of different teeth and the range varies from 25-600 ppm in teeth from different geographic areas [Steadman et al, 1958]. The distribution is even throughout enamel with no difference in the strontium concentration among different age groups or between unerupted and erupted teeth.…”

Section: Trace Elements In Dental Plaquementioning

confidence: 98%

Trace Element Content of the Hard Dental Tissues and Dental Plaque

Nixon¹

1969

Caries Res

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Distribution of strontium in teeth from different geographic areas

Cited by 41 publications

References 7 publications

Strontium and Caries: A Long and Complicated Relationship

Strontium and Caries: A Long and Complicated Relationship

Structure of partially substituted chlorapatite (Ca2Sr)5(PO4)3Cl

Trace Element Content of the Hard Dental Tissues and Dental Plaque

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