id	keyword
bjos-8640981	pain
bjos-8640981	surgery
bjos-8640981	dexamethasone
bjos-8640981	etoricoxib
bjos-8640981	placebo
bjos-8640981	group
bjos-8640981	use
bjos-8640981	oral
bjos-8640981	mucogingival
bjos-8640981	tissue
bjos-8640981	control