id	keyword
dentistry3000-1044	caries
dentistry3000-1044	varnish
dentistry3000-1044	sdf
dentistry3000-1044	naf
dentistry3000-1044	children
dentistry3000-1044	dental
dentistry3000-1044	silver
dentistry3000-1044	lesions
dentistry3000-1044	0luoride
dentistry3000-1044	group