Formulation and Evaluation of a New Biodegradable Periodontal Chip Containing Thymoquinone in a Chitosan Base for the Management of Chronic Periodontitis

Table 1

Mean differences in the plaque index between groups pre- and post-treatment.

Type of treatment	𝑁	Pearson Chi-Squared test	df	Significance
Control	60	0.292	1	NS
Chitosan	60	0.031	1	S*
Thymoquinone	60	0.036	1	S*

∗Significant at the (𝑃<0.05) level.