Reactive oxygen species	ROS
Reactive oxygen metabolisms	ROMs
Catalase	CAT
Superoxide dismutase	SOD
Glutathione peroxidase	GPX
Glutathione reductase	GSR
Thioredoxin	TRX
Oral peroxidase	OP
Salivary lactoperoxidase	LPO
Clinical attachment level	CAL
Bleeding on probing	BoP
Probing depth	PD
Gingival index	GI
Plaque index	PI
Periodontal probing depth	PPD
Myeloperoxidase	MPO
Malondialdehyde	MDA
Hydroxydeoxyguanosine	8-OHdG
4-hydroxy-2-nonenal	4 HNE
Advanced glycation ends products	AGEs
AGE receptor	RAGE
Total oxidant status	TOS
Crevicular gingival fluid	CGF
Total antioxidant capacity	TAOC
Total antioxidant capacity	TAC