Periodontal Status in Smokers and Nonsmokers: A Clinical, Microbiological, and Histopathological Study

Table 4

Comparison of probing depth between nonsmokers and smokers. Results are presented in trimean (min-max).

Parameters	Nonsmokers	Smokers	P value
PD <4 mm%	98.57; (13.33–100)	97.22; (0–100)	0.006**
PD 4–7 mm%	1.29; (0–70.56)	2.58; (0–76.92)	0.009**
PD >7 mm %	0; (0–16.11)	0; (0–12)	0.859