id	keyword
bjos-8640846	instruments
bjos-8640846	niti
bjos-8640846	file
bjos-8640846	reciprocating
bjos-8640846	stress
bjos-8640846	fatigue
bjos-8640846	endod
bjos-8640846	rotary
bjos-8640846	behavior
bjos-8640846	strain
bjos-8640846	analysis
bjos-8640846	study
bjos-8640846	element