id	keyword
bjos-8656601	resin
bjos-8656601	surface
bjos-8656601	margins
bjos-8656601	fluoride
bjos-8656601	erosion
bjos-8656601	composite
bjos-8656601	erosive
bjos-8656601	cycles
bjos-8656601	varnish
bjos-8656601	acid
bjos-8656601	dent
bjos-8656601	doi
bjos-8656601	glass
bjos-8656601	brazil
bjos-8656601	control
bjos-8656601	ionomer
bjos-8656601	challenge