Objective To investigate the antagonistic effects of S.sanguis suspension and supernatant on putative periodontal pathogens in vitro.

• 目的体外研究血链球菌与牙周可疑致病菌的相互关系,探讨血链球菌全菌细胞、培养上清液对牙周可疑致病菌的拮抗作用。