THE EFFECT OF GLASS IONOMER ON THE REMINERALIZATION OF ADJACENT INITIAL ENAMEL CARIES LESION BY RELEASING FLUORIDE

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Journal of the Korean Academy of Pediatric Dentistry 2002;29(4):529-538.
Published online November 30, 2002.

THE EFFECT OF GLASS IONOMER ON THE REMINERALIZATION OF ADJACENT INITIAL ENAMEL CARIES LESION BY RELEASING FLUORIDE

Glass Ionomer 수복재의 초기 법랑질 우식증에 대한 효과

박영수, 김종수, 권순원

단국대학교 치과대학 소아치과학교실

Abstract

There is no adverse opinion on the anticariogenic effect of fluoride, so glass ionomer restoration which release the fluoride is recommended fer child patient. To study the anticariogenic effect of initial carious lesion of fluoride released from adjacent glass ionomer restoration, the in situ model was constructed. A microhardness test, polarized scope investigation and electron probe microanalysis was done for analyzing the distribution of fluoride which was precipitated from glass ionomer restoration to the enamel caries lesion. Fuji IX, the conventional glass ionomer, was used for experimental group and Z-100, composite resin that fluoride was not contained, was used for control group. On the microhardness test, the remineralization was accelerated by fluoride. And on the polarized investigation, the size of caries lesion was reduced in the oral cavity and that phenomenon was accelerated by fluoride, too. Electron probe microanalysis shows that the remineralization was accelerated by fluoride and the fluoride concentration on subsurface area was increased. It maybe that the subsurface area was critical to anticariogenic effect. In summary of these result, initial caries lesion can be remineralized in the oral cavity and that phenomenon can be accelerated by fluoride. The subsurface area of caries lesion was a major part of defense to cariogenic invasion and to conserve the subsurface area, the surface of lesion body have to conserved.

Key Words: Fluoride, Remineralization, Glass ionomer, Initial enamel caries, Electron probe microanalysis