| Autor: |
Heap PF, Berkovitz BK, Gillett MS, Thompson DW |
| Jazyk: |
angličtina |
| Zdroj: |
Archives of oral biology [Arch Oral Biol] 1983; Vol. 28 (3), pp. 195-200. |
| DOI: |
10.1016/0003-9969(83)90147-4 |
| Abstrakt: |
Electron-dense particles, approximately 4 nm (40 A) in diameter were present. Evidence is offered that these particles represent iron probably in the form of amorphous hydrous ferric hydroxide. From X-ray probe analytical data, it is suggested that this iron component is accommodated through the process of adsorption rather than by direct substitution of calcium and phosphorus. The iron-rich surface layer was more resistant to acid etching than subsurface enamel. Reported areas of reduced mineral density of enamel at the enamel-dentine junction appear to be preparation artifacts. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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