Elizabeta Gjorgievska¹,
John W. Nicholson²,
Icko Gjorgovski³,
Snezana Iljovska¹ and
Marija Stevanović¹

¹ cLINIc fOR PEDIATRIc AND PREVENTIVE DENTISTRy, fAcULTy Of DENTAL MEDIcINE, UNIVERSITy “STS. KIRIL AND METODIj” SKOPjE, REPUbLIc Of MAcEDONIA;
² SchOOL Of ScIENcE, UNIVERSITy Of gREENWIch, KENT, UK;
³ fAcULTy Of NATURAL AND MAThEMATIc ScIENcES, UNIVERSITy “STS. KIRIL AND METODIj” SKOPjE, REPUbLIc Of MAcEDONIA

Anticariogenic effect of the fluoride releasing restorations is in direct correlation with the quantity of the released fluorides, but even more with the longevity of this release. Apart from fluoride, glass ionomer cements release other matrix-forming cations. From all these ions, aluminium easily forms stable complexes with fluoride ions. Fuji II LC restorations were placed in young permanent immature teeth. The release of fluoride in distilled water was determined spectrophotometrically and the release of aluminium was determined by atomic absorption spectrophotometry. The ion release in hard dental tissues- enamel and dentin was analyzed by energy dispersive analysis with x-rays. Fuji II LC releases fluoride and aluminium ions in distilled water. Migration of ions in hard dental tissues also exists, which suggests that the
remineralization of the demineralized enamel and dentin may not be a result of the fluoride migration, but a result of the deposition of minerals in the pores of the dentin, that limits the number of diffusion pathways for the bacteria and therefore increases the caries resistance. The analysis of our samples determined high levels of fluoride, but also aluminium released from Fuji II LC, that can actually influence the determination of the fluoride release.

Key words: resin-modified glass-ionomer cement, aluminium, fluoride, ion release
 

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