id	keyword
bjos-8668439	resins
bjos-8668439	strength
bjos-8668439	flexural
bjos-8668439	doi
bjos-8668439	hardness
bjos-8668439	materials
bjos-8668439	dent
bjos-8668439	vickers
bjos-8668439	printing
bjos-8668439	cad
bjos-8668439	restorations