id	keyword
bjos-8641838	oral
bjos-8641838	root
bjos-8641838	chx
bjos-8641838	canals
bjos-8641838	endod
bjos-8641838	faecalis
bjos-8641838	activity
bjos-8641838	instrumentation
bjos-8641838	total
bjos-8641838	chlorhexidine