Fogorvosi szemle, 1994 (87. évfolyam, 1-12. szám)

1994-05-01 / 5. szám

A hasonló kísérleti feltételek mellett képződött cériumapatit [6] valamint a mostani kísérletekből keletkezett neodímium-apatitok alapján a cérium és a neodímium alkalmas lehet a fogzománc apatitstruktúrájának a stabilizálására.

IRODALOM: I. Bánóczy, J., Kiss, J., Fehérvdry, E., Gintner, Z., Albrecht, M.: Kristallchemische Aspekte der Remineralisation des Zahnschmelzes. Stomatologie der DDR 40, 200, 1990. 2. Collys, КCleymaet, R., Slop, D., Quartier, E., Coomans, !>.: The influence of

lanthanum on fluoride uptake by sound and surface-softened bovine enamel in vitro. Trace Elements in Medicine 9, 97, 1992. — 3. Deer, W. A., Howie, R. A., Zussman, W. A.: Rock forming minerals. Longmans, V. Nonsilicats, 323, 1964. — 4. Featherstone,, J. О. B.: Diffusion phenomena and enamel caries development. In: *;Cariology Guggenheim, B. (ed.) Basel, Karger, 259. 5. Gintner Z., Bánóczy .1Ritkaföldfém-tartalmú fogkrémek hatása humán

fogzománc savoldékonyságára in vitro. Fogorvosi Szemle, 86, 3, 1993. — 6. Kiss, J., Bánóczy, ■J., Fehérvdry, E., Gintner, Z., Albrecht, MProduction of cerium apatite in sound and carious dental enamel under in vitro conditions. Acta Morph. Hun. 38, 61, 1990a. — 7. Kobayashi, Y., Ozeki, M., Yakei, M., Shimano, It.: Absorption of lanthanum by the enamel surface of extracted human teeth. J. Dent. Health (Tokyo) 29, 276, 1979b. — 8. Koulourides, Th.: Dynamics of biological mineralization applied to dental caries. Tn: The biological basis of dental caries. Menaker, L., Morhart, R. E. and Navia, J. M. (eds) Ch: 19, 419, Hagerstown, Harper and Row. — 9. Kobayashi, Y., Ozeki, M., Yagi, T., Hosoi, TTakei, M.: Aciduric resistance of lanthanum treated teeth. J. Dent. Health (Tokyo) 30, 388, 1980b. — 10. Kobayashi, Y., Ozeki, M., Yagi, T. Hosoi, T., Takei, MX-ray diffraction analysis of the reaction products of hydroxyapatite and lanthanum. J. Dent. Health (Tokyo) 29, 354, 1980a. — 11. Mukai, Y., Teranaka, T., Saegusa, M., Matsumoto, Y., Negishi, H.. Fujihara, T Iwamoto, TThe effect of F-La treatment on secondary caries in vitro. Jap. J. Cons. Dent. 35, 59, 1992. — 12. Mühlemann, H. It.: Pharmakologie und Paradontologie, Schweiz. Mschr. Zahnheilk. 85, 447. 1975. — 13. RDA. Recommended dietary allowances, Ch:12, 262. 10th ed. Washington D. C. National Academy Science. — 14. Shrestha, B. M. Mundorf, S. A., Bibby, B. G.: Enamel dissolution. I. Effects of various agents and titanium tetrafluorides. J. Dent. Res. 51, 1561, 1972. — 15. Teranaka, T., Mukai. Y., Saegusa, M., Satoyoshi, M., Negishi, H., Fujihara, T., Iwamoto, T.: Inhibition effect of fluoride-lanthanum treatment on root surface demineralization in vitro. Jap. J. Cons. Dent. 35, 648, 1992.

Dr. Kiss. J., dr. Bánóczy, J., dr. Gintner. Z.: The effect of neodymium on christalstructural characteristics of dental enamel: an in vitro study

The possibility of neodymium incorporation into hard tissues of permanent teeth has been investigated. The amount of neodymium was determined by X-ray microprobe analysis. The result indicates that different phases of enamel apatite have been recristallised. Neodymium compounds have appeared while the amount of some minerals in enamel have decreased. Neodymium could be an effective agent in stabilisation of the apatite structure of dental enamel.

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