id	keyword
bjos-8673158	aging
bjos-8673158	crown
bjos-8673158	peek
bjos-8673158	restorations
bjos-8673158	doi
bjos-8673158	fracture
bjos-8673158	subgroup
bjos-8673158	oral
bjos-8673158	dent
bjos-8673158	resistance
bjos-8673158	cad
bjos-8673158	cam
bjos-8673158	gap
bjos-8673158	material