Table 3.

Comparison of PD, CAL, BI and GI levels between the two groups before and after treatment

Groups		Control group	Observation group	t/X2	P
case		153	139
PD/mm	Preoperative	5.84±0.90	5.70±0.88	-1.248	0.213
	Postoperative 1 Week	5.23±0.71	4.50±0.60	-9.454	<0.001
	Postoperative 2 Weeks	4.37±0.57	3.90±0.53	-7.322	<0.001
	Postoperative 1 month	3.29±0.42	3.06±0.36	-5.15	<0.001
CAL/mm	Preoperative	3.26±0.47	3.34±0.49	1.438	0.152
	Postoperative 1 Week	2.70±0.41	2.32±0.39	-7.994	<0.001
	Postoperative 2 Weeks	1.92±0.34	1.54±0.29	-10.38	<0.001
	Postoperative 1 month	1.32±0.21	1.15±0.18	-7.537	<0.001
BI	Preoperative	4.00 [3.00, 4.00]	4.00 [3.00, 4.00]	-0.453	0.614
	Postoperative 1 Week	3.00 [2.00, 3.00]	3.00 [2.00, 3.00]	-0.483	0.56
	Postoperative	2.00 [2.00, 2.00]	2.00 [1.00, 2.00]	-5.967	<0.001
	Postoperative 1 month	2.00 [1.00,2.00]	1.00 [1.00, 1.00]	-8.635	<0.001
GI	Preoperative	2.00 [2.00, 2.00]	2.00 [2.00, 2.00]	0.11	0.875
	Postoperative 1 Week	2.00 [2.00, 2.00]	2.00 [2.00, 2.00]	-1.038	0.139
	Postoperative 2 Weeks	2.00 [1.00, 2.00]	1.00 [1.00, 1.00]	-7.425	<0.001
	Postoperative 1 month	1.00 [1.00, 1.00]	1.00 [1.00, 1.00]	-2.435	<0.001

Note: PD, Probing Depth; CAL, Clinical Attachment Level; BI, Bleeding Index; GI, Gingival Index.