Fructan 생성 S. salivarius의 인공치태 억제효과
The inhibitory effect of fructan-producing S. salivarius on the formation of artificial plaque
구강과학- 전남대학교 2001년 13권 1호 p.64 ~ 78
박소영, 양진석,
소속 상세정보
박소영 ( ) - 전남대학교 치과대학 소아치과학교실
양진석 ( ) - 전남대학교 치과대학 소아치과학교실
KMID : 0988420010130010064
Abstract
Streptococcus mutans is the most important causative bacteria of dental caries among the oral bacteria. Streptococcus salivarius is a normal inhabitant in the human oral cavity. Nine strains of Streptococcus salivarius in this study were isolated from the oral cavities of children and identified, and their effect on Streptococcus mutans and Streptococcus oralis was studied.
1. The mean weight of produced artificial plaque on the wires in the beaker was 204.9 ㎎ in the culture of Streptococcus mutans only, whereas being reduced to 1.9 ㎎ through 20.6㎎ in the combined culture of Streptococcus mutans and each Streptococcus salivarius isolate(p<0.05).
2. When Streptococcus mutans was cultured in the media containing culture supernatant of each Streptococcus salivarius isolate in M17 broth, the mean weigh of produced artificial plaque on the wire was 117.1 ㎎, whereas being 47.7 ㎎ in the media containing culture supernatant of each Streptococcus salivarius isolate in M17 broth containing 5% sucrose.
3. Compared with the number of viable cells after culturing of Streptococcus oralis or each Streptococcus salivarius isolate, the cell number of Streptococcus oralis and 6 isolates of Streptococcus salivarius were not greatly changed after the combined culture of them.
4. The polymer produced by Streptococcus saliivarius isolates was fructan on the thin layer chromatography.
5. Inulin and levan did not inhibit the formation of artificial plaque by
Streptococcus mutans in the beaker test.
These results suggested that fructan producing Streptococcus salivarius isolates inhibited the formation of artificial plaque by Streptococcus mutans.
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