ISSN : 0376-4672
목적 : 중합 광이 닿지 않는 곳에서 자가중합을 촉진하는 primer (G-Cem One Adhesive Enhancing Primer)가 개발되었다. primer의 적용에 따른 중합도의 차이에 대해 비교하였다. 재료 및 방법 : 이중중합 형태의 자가접착레진시멘트인 G-Cem One, G-Cem Linkace, Rely-X U200, 이중중합 레진시멘트인 Rely-X Ultimate와 G-Cem One Primer를 사용하였다. 알루미늄으로 직경 5 ㎜, 두께 2 ㎜의 몰드를 제작하고 유리판 위에 primer를 적용한 후 각각의 재료들을 몰드에 채우고 자가중합을 유도하였으며 Vickers 미세경도 측정기를 이용하여 혼합 후 10 분, 1 시간, 3 시간, 6 시간, 24 시간 후의 미세경도를 측정하였다. 모든 경도 값을 통계처리 하였다. 결과 : G-Cem One, G-Cem LinkAce, Rely-X U200은 시멘트의 혼합 초기에 primer를 적용했을 때 미세경도 값이 높게 나타났으며, Rely-X Ultimate에서는 primer의 적용이 유의한 차이를 보이지 않았다. 결론 : 새로운 primer의 적용은 이중중합 레진시멘트의 혼합 초기에 중합을 촉진시키는 효과가 있다
Objectives: The primer (G-Cem One Adhesive Enhancing Primer), which promote self-polymerization more in the absence of polymerization light is developed. To date, many studies on the mechanical properties and prognosis of various self-adhesive resin cements have been published. Since there is almost no comparison of the degree of polymerization depending on the application of primers, this study was attempted. Materials and Methods : A total of three types of dual cure self-adhesive resin cements (G-Cem One, G-Cem LinkAce, Rely-X U200) and one type of dual cure resin cement (Rely-X Ultimate) were evaluated. G-Cem One Primer was used as a primer enhancing of auto-polymerization. A mold 5 mm in diameter and 2 mm thick was made from aluminum, primers were applied on a glass slit, and each material was filled in the mold, and self-polymerization was induced. The microhardness was measured with a Vickers microhardness machine after 10 minutes, 1 hour,3 hours,6 hours and 24 hours. All dates were statistically analyzed. Results : G-Cem One, G-Cem LinkAce and Rely-X U200 showed high microhardness values when primers were applied at the beginning of cement mixing. Primer application did not show significantly different in Rely-X Ultimate. Conclusion : The application of a new primer has a dual cure self-adhesive resin cement which promotes the polymerization at the beginning of the mixing.
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