id	keyword
bjos-8673330	dental
bjos-8673330	oral
bjos-8673330	caries
bjos-8673330	health
bjos-8673330	study
bjos-8673330	school
bjos-8673330	children
bjos-8673330	hygiene
bjos-8673330	prevalence
bjos-8673330	participants
bjos-8673330	practices