. 2012 Sep 13;70(2):154–162. doi: 10.1016/j.mjafi.2012.04.020

Table 1.

Statistical analysis of Plaque Index (group A vs group B).

Time	Groups	Full mouth (FM)		Implant (IMP)
Time	Groups	Mean PI ± SD	t^∗∗P	Mean PI ± SD	t^∗∗P
Baseline	Group A	0.9133 ± 0.0903	0.07 0.943 NS	0.925 ± 0.103	0.71 0.484 NS
Baseline	Group B	0.911 ± 0.110	0.07 0.943 NS	0.957 ± 0.136	0.71 0.484 NS
3 Months	Group A	0.937 ± 0.121	1.03 0.312 NS	0.957 ± 0.130	0.91 0.372 NS
3 Months	Group B	0.892 ± 0.121	1.03 0.312 NS	0.9207 ± 0.0866	0.91 0.372 NS
6 Months	Group A	0.936 ± 0.141	1.91 0.066 NS	0.852 ± 0.127	2.01 0.054
6 Months	Group B	0.8600 ± 0.0627	1.91 0.066 NS	0.937 ± 0.103	2.01 0.054
9 Months	Group A	0.8727 ± 0.0949	0.43 0.670 NS	0.8387 ± 0.0955	1.02 0.316 NS
9 Months	Group B	0.855 ± 0.131	0.43 0.670 NS	0.8700 ± 0.0707	1.02 0.316 NS
12 Months	Group A	0.8787 ± 0.0954	0.13 0.898 NS	0.846 ± 0.106	0.04 0.971 NS
12 Months	Group B	0.874 ± 0.102	0.13 0.898 NS	0.8473 ± 0.0952	0.04 0.971 NS

P > 0.05 NS, ≤0.05 S, ≤0.01 HS.

NS: non significant.

S: significant.

HS: highly significant.

^∗ Paired ‘t’ test (intragroup comparisons).

^∗∗ Unpaired ‘t’ test (intergroup comparison).