Table 2. Residual plaque and calculus on subgingival root surfaces of test and control teeth after treatment.

Parameters	Experimental group		P value
	Test	Control
Probing depth (mm)	8.04±2.31	8.34±2.71	0.369
Cleaning depth (mm)	2.67±2.69	4.41±2.96	<0.001
Total subgingival root surface area (mm2)	55.86±24.22	60.13±25.09	0.197
Residual plaque area (mm2)	5.17±6.69	15.96±13.64	<0.001
Residual calculus area (mm2)	6.67±8.72	10.90±7.69	<0.001
Percent of plaque area (%)	10.63±12.79	17.32±10.68	<0.001
Percent of calculus area (%)	46.90±33.76	23.65±18.27	<0.001
Percent of plaque and calculus area (%)	19.53±18.15	40.99±233.32	<0.001

Data are reported as mean ± standard deviation.