Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
권호 표지

COMPARATIVE STUDY ON THE FLUORIDE RELEASE AND COMPRESSIVE STRENGTH OF SEVERAL F-CONTAINING RESTORATIVE MATERIALS

수종의 불소 함유 수복재의 불소 유리 및 압축 강도에 관한 연구

  • Park, Jee-Young (Department of Pediatric Dentistry, School of Dentistry, Dankook University) ;
  • Kim, Jong-Soo (Department of Pediatric Dentistry, School of Dentistry, Dankook University) ;
  • Kim, Seung-Oh (Department of Anesthesiology, School of Dentistry, Dankook University)
  • 박지영 (단국대학교 치과대학 소아치과학교실) ;
  • 김종수 (단국대학교 치과대학 소아치과학교실) ;
  • 김승오 (단국대학교 치과대학 치과마취학교실)
  • Published : 2008.08.29
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Abstract

This study was performed to compare the fluoride release pattern and compressive strength of recently developed resin-modified glass ionomers($Ketac^{TM}$ N 100 and Fuji Fil LC) with those of conventional glass ionomer restorative material(Fuji II LC). Fifteen sample discs(6 mm diameter and 1 mm height) were prepared for each tested material. The fluoride release was measured by pH/ISE meter(750P, Istek, Korea) for 31 days. For compressive strength experiment, fifteen cylindrical specimens were prepared for each tested material. Each specimen was submitted to compressive strength testing in an universal testing machine(Kyung-sung Testing Machine Co., Korea) at crosshead speed of 5.0mm/min until failure. The results can be summarized as follows; 1. Fuji Fil LC released the highest amount of fluoride, followed by Fuji II LC and $Ketac^{TM}$ N 100(p<0.05). 2. The compressive strength of Fuji Fil LC was the lowest(p<0.05). However, no significant difference was found from Fuji II LC and $Ketac^{TM}$ N 100(p>0.05). By considering the above results, careful case selection and accurate clinical application is recommended when using $Ketac^{TM}$ N 100 and Fuji Fil LC.

본 연구는 새로 개발된 레진 강화형 글래스 아이오노머인 $Ketac^{TM}$ N 100과 Fuji Fil LC의 개선된 점을 보기 위해 불소 유리량과 압축 강도를 Fuji II LC와 비교 평가해 보았다. 불소 유리량 측정을 위해 각 재료 별로 시편을 15개씩 제작하여 탈이온수에 보관하였고, 31일 동안 pH/ISE meter(750P, Istek, Korea)를 이용하여 불소 유리량을 측정하였다. 압축 강도 측정을 위해 각 재료별로 15개씩 시편을 제작하여 만능 경성 시험기(Kyung-sung Testing Machine Co., Korea)를 이용하여 시편이 파절된 시점의 최대 강도를 측정하였다. 연구 결과 얻은 결론은 다음과 같다. 1. 전반적인 불소 유리량은 Fuji Fil LC, Fuji II LC, $Ketac^{TM}$ N 100 순으로 높았다(p<0.05). 2. 압축 강도는 Fuji II LC와 $Ketac^{TM}$ N 100은 유의한 차이가 없었고(p>0.05), Fuji Fil LC는 두 재료보다 낮은 압축 강도 값을 보였다(p<0.05). 이상의 결과를 종합해보면 $Ketac^{TM}$ N 100은 대조군인 Fuji II LC와 비교 시 불소 유리량은 적었으나 압축 강도는 유사했고 Fuji Fil LC는 불소 유리량은 높았고 압축 강도는 낮았다. 이런 재료의 특성에 맞게 임상 적용을 하는 것이 중요할 것이다.

Keywords

References

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