. 2015 Mar 1;9(3):ZC23–ZC25. doi: 10.7860/JCDR/2015/11311.5652

[Table/Fig-2]:

Melatonin levels in saliva, plasma and gingival tissue samples of the study groups

Sample	Groups	Melatonin Levels in Picogram /ml	p-value
Saliva	Healthy individuals	3.95±3.28	0.266(NS)
Saliva	Chronic Periodontitis patients	2.8±2.39	0.266(NS)
Plasma	Healthy individuals	4.4±2.35	0.933(NS)
Plasma	Chronic Periodontitis patients	4.6±3.16	0.933(NS)
Gingival tissue homogenates	Healthy individuals	1.58±.0.84	0.015(S)
Gingival tissue homogenates	Chronic Periodontitis patients	0.54±0.80	0.015(S)

Note: NS-denotes not statistically significant and S- denotes statistically significant