Keywords chitooligosaccharide;streptococcus mutans group;cariostatic;cell wall;dental plaque;adhesion;cell surface hydrophobicity;insoluble polysaccharide;

• 壳寡聚糖;变形链球菌;防龋;细胞壁;菌斑生物膜;胞外多糖;粘附;疏水性;