id	keyword
bjos-8648761	tuft
bjos-8648761	plaque
bjos-8648761	biofilm
bjos-8648761	study
bjos-8648761	oral
bjos-8648761	control
bjos-8648761	toothbrush
bjos-8648761	brushes
bjos-8648761	gingival
bjos-8648761	stb
bjos-8648761	chlorhexidine
bjos-8648761	gingivitis
bjos-8648761	effectiveness