수종의 불소방출 수복재의 탈회억제 효과 및 불소침투에 관한 연구 = In vitro study of demineralization inhibition effect and fluoride uptake into adjacent teeth of light-cured fluoride-releasing restoratives

다국어 초록 (Multilingual Abstract)

The purpose of this study was to evaluate the effect of light cured fluoride-releasing materials on the inhibition of demineralization. In addition, the pattern of fluoride uptake of adjacent tooth structure was analyzed with EPMA.
Eighty intact premolars were restored with Z250(control group, composite), Fuji Filling LC(RMGI), Dyract AP(compomer) and Beautifil Ⅱ(giomer). Restored teeth were stored in distilled water for 30 days. Then sixty teeth(n=15) were exposed to demineralizing solution(pH 4.3). Demineralized teeth were bisected and polished. The specimens were observed with confocal laser scanning microscope. The depth of outer lesion and the thickness of inhibition zone were measured. Remained twenty teeth(n=5) were bisected for fluoride uptake analysis. The fluoride analysis were taken at enamel-restoration interface and dentin-restoration interface by electron probe micro-analyzer.
The results are as follows:
1. The depth of outer lesion of Fuji Filling LC, Dyract AP, Beautifil Ⅱ was shallower than that of Z250 at the margin of restoration(p<0.05).
2. The thickness of caries inhibition zone of Fuji Filling LC, Dyract AP, Beautifil Ⅱ was greater than that of Z250 at the margin of restoration(p<0.05).
3. Fuji Filling LC, Dyract AP, Beautifil Ⅱ groups showed the greater fluoride uptake into enamel and dentine around restoration than Z250 group.
4. In dentin the difference of fluoride concentration were greater than in enamel, and Dyract AP showed the greatest fluoride concentration in dentin.

목차 (Table of Contents)

• I. 서 론 1
• II. 실 험 재 료 및 방 법 2
• III. 결 과 4
• IV. 총 괄 및 고 찰 6
• V. 결 론 9
• 참 고 문 헌 9
• 영 문 초 록 12