수종의 근관세척액과 Listerine의 항균성 비교 연구 = COMPARISON OF ANTIBACTERIAL EFFECT OF LISTERINE WITH VARIOUS ROOT CANAL IRRIGANTS

국문 초록 (Abstract)

본 연구는 여러 가지 근관세척액(NaOCl, CHX, EDTA)과 구강세정제로 사용되는 Listerine을 근관감염균주인 Porphyromonas gingivalis와 Enterococcus faecalis를 상대로 항균효과를 비교하고 Listerine이 근관세척액으로 사용가능한지를 확인하고자 시행하였다. 본 연구에서는 Porphyromonas gingivalis ATCC 3327과 Enterococcus faecalis ATCC 29212의 표준균주를 사용하였다. 실험을 위한 근관세척제로 0.1%, 0.2%, 1%, 2% Chlorhexidine(CHX)과 0.5%, 1%, 2.5%, 5.25% NaOCl, 0.5M EDTA(18.6% EDTA). 그리고 Listerine원액을 이용하였다. 항균효과의 비교는 액체배지상에서 균주의 혼탁도와 한천 확산법을 이용한 억제대 비교로 하였다. 모든 실험군은 대조군과 비교시 근관내 균주에 항균성을 나타냈다(p < 0.001). 모든 농도의 NaOCl, CHX, 그리고 EDTA는 실험균주에서 높은 항균성을 보였다. 모든 실험에서 Listerine은 다른 근관세척제에 비해 낮은 항균성을 보였다. 결론적으로, Listerine이 E. faecalis와 P. gingivalis에 대해 항균성을 보이나, 일반적으로 사용되는 근관세척 액에 비해서는 현저히 낮은 항균성을 나타냄으로 근관세척 액으로 사용은 적합하지 않음을 나타냈다.

다국어 초록 (Multilingual Abstract)

The purpose of this study is to compare the antibacterial effect of Listerine on two microorganisms (P. gingivalis and E. faecalis) with various root canal irrigants (NaOCl, CHX, EDTA) and to identify possibility of using Listerine as a root canal irrigant. Porphyromonas gingivalis ATCC 3327 and Enterococcus faecalis ATCC 29212 were used in this experiment. For the test irrigants, 0.5%, 1%, 2.5%, 5.25% NaOCl, 0.1%, 0.2%, 1%, 2% CHX, 0.5M EDTA (18.6% EDTA) and Listerine were prepared. Distiled water was used as control. Two methods-1) Comparison of turbidity in broth and 2) Agar diffusion test-were used to determine the extent of antibacterial effect of Listerine and to compare it with that of NaOCl, CHX, and EDTA. All solutions tested were effective against two bacterial strains compared with control (p < 0.001). Any concentration of NaOCl, CHX, and EDTA showed similarly high effectiveness against all bacterial strains. In all experiment, Listerine showed significantly low antibacterial effect compared with the other root canal irrigants (p < 0.05).
In conclusion, the results reflect remarkably low antibacterial effect of Listerine as compared with root canal irrigants in general so it is not suitable for the root canal irrigant.

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