Some preliminary observations on caries (?remineralization?) crystals in enamel and dentine by surface electron microscopy

Lester, Keith S.; Boyde, A.

doi:10.1007/bf00547887

Cited by 27 publications

(12 citation statements)

References 15 publications

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“…The ultrastructural ap- pearancc of such occluded canals is similar to that described in response to caries in permanent teeth [Takuma and Kurahashi, 1962;Sarnat and Massi.er. 1965; Lester and Boyde, 1968b] and similar to that described Fig. 8.…”

Section: Discussionsupporting

confidence: 70%

“…These were usually found in the outer parts of the zone of penetration but in areas which did not appear to have been reached by bacteria. Crystals of this type have been observed in scanning electron micrographs of carious dentine by Lester and Boyde [1968b]. The shorter form is also illustrated by F rank el al.…”

Section: Discussionmentioning

confidence: 50%

“…Crystals of this type have been described frequently in carious enamel and dentine [Hei.mcke, 1955;Lenz. 1955;Hohling, I960, 1961;F rank et al, 1964;H erting, 1965Lester and Boyde, 1968b] and both electron diffraction and morphologic studies indicate them to be Whitlockite [Vahl, H ohling and P'rank, 1964;Newesely, 1968a, bj. They are readily produced by precipitation processes in acid-treated dentine [Selvig, 1968a, b].…”

Section: Discussionmentioning

confidence: 99%

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The Response of Deciduous Dentine to Caries Studied by Correlated Light and Electron Microscopy

Johnson¹,

Br²,

Ds³

1969

Caries Res

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Section: Discussionsupporting

confidence: 70%

Section: Discussionmentioning

confidence: 50%

Section: Discussionmentioning

confidence: 99%

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The Response of Deciduous Dentine to Caries Studied by Correlated Light and Electron Microscopy

Johnson¹,

Br²,

Ds³

1969

Caries Res

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“…Remineraliza tion of dentine has been shown previously by several authors [Lester and Boyde, 1968;Jones and Boyde, 1987], but the role of the remineralization in, e.g., root caries is not understood yet. The aim of the present paper was (1) to investigate the remineralization of human dentine in the presence of small amounts of fluoride ions in solution, (2) to compare quantita tively the change in mineral distribution after remin eralization in bovine and human dentine, respec tively, for various fluoride concentrations in solution, and (3) to study the mechanism of dentine reminerali zation.…”

mentioning

confidence: 99%

Remineralization of Human Dentine in vitro

Arends¹,

Ruben²,

Christoffersen³

et al. 1990

Caries Res

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In this paper the in vitro remineralization of human dentine with 0, 0.5, 2 and 10 ppm F in the remineralization solution is presented and analyzed by microradiography. Furthermore, the remineralization data of human and bovine dentine are quantitatively compared. The main results of this paper are: (1) the efficacy of human (and bovine) remineralization is about proportional to the square root of the F level in the rem-ineralizing solution, and (2) the amount of mineral effectively deposited in the dentine is most likely controlled by the diffusion of fluoride into the tissue. This study shows furthermore that although numerical differences exist in the remineralization of human and bovine dentine, the general remineralization behaviour is quite similar. The presence of F^–– in the parts per million range is essential for the remineralization efficacy in vitro and also for the ‘overremineralization’ of the outer dentine surface.

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“…Remineralization of dentine has been suggested by some authors [see Lester and Boyde, 1968;Jones and Boyde, 1987], but the role of remineralization and its importance is not clear yet. One may presume that dentine remineralization is a very complex pheno menon, because destruction of dentine during caries involves demineralization of the mineral as well as proteolytic breakdown of the collageneous matrix.…”

mentioning

confidence: 99%

Remineralization of Bovine Dentine in vitro

Arends

Christoffersen²,

Ruben

et al. 1989

Caries Res

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In this paper remineralization of bovine dentine is reported. After demineralization of the dentine in an acidic gel system creating lesions of about 180 μm depth, the tissue was remineralized in a 1.5 mMCa and 0.9 mM phosphate containing solution at pH 7 and 37 °C for 8 or 21 days. The F content in the remineralization solution was 0.02, 2, or 10 ppm as NaF. Samples were analyzed by means of microradiography and scanning electron microscopy. The results show that remineralization (without F added in solution) causes a decrease in mineral loss and in lesion depth. With 2 or 10 ppm in solution, however, a substantial mineral accumulation in the lesion, but particularly on the original dentine surface, was observed. During 3 weeks of remineralization, mineral accumulations of 67 and 70 vol% of mineral for 2 and 10 ppm F in solution, respectively, were found near the original outer surface, with the sound dentine mineral value being 48 vol%. The combined microradiography and scanning electron microscopy data show that the mineral accumulated is for a major part deposited on the dentine tissue and partly inside. The latter deposition occurred both inside the tubules as well as in the intertubular areas. Inside the tubules dense precipitates were observed. Because several differences exist between bovine and human dentine, an extrapolation to the human in vivo situation is speculative. The results indicate that the presence of fluoride in the parts per million range is important for dentine remineralization efficacy and that the outer surface area in dentine can be ‘overremineralized’.

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Some preliminary observations on caries (?remineralization?) crystals in enamel and dentine by surface electron microscopy

Cited by 27 publications

References 15 publications

The Response of Deciduous Dentine to Caries Studied by Correlated Light and Electron Microscopy

The Response of Deciduous Dentine to Caries Studied by Correlated Light and Electron Microscopy

Remineralization of Human Dentine in vitro

Remineralization of Bovine Dentine in vitro

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