Table 2.

Presence of peri-implant health issues across the follow-up period (in %) and the significant intergroup comparisons (Chi-square test, p<0.05). ∗ p=0.003.

	Plaque Index				Calculus Presence				Gingival inflammation				Bleeding on Probing
	1M	3M	6M	12M	1M	3M	6M	12M	1M	3M	6M	12M	1M	3M	6M	12M
G1	50	50	44.4	11.1	0	0	11.1	0	0	0	0	0	0	0	0	0
	6/12	5/10	4/9	1/9	0/12 A	0/10	9/9	9/9	0/12	0/10	0/9	0/9	0/12	0/10	0/10	0/9
G2	25	57.1	61.5	46.2	0	0	0	0	0	7.1	0	0	12.5	7.1	0	7.7
	4/16	8/14	8/13	6/13	0/16 A	0/14	0/13	0/13	0/16	1/14	0/13	0/13	2/16	1/14	0/13	1/13
G3	35.7	58.3	22.2	0	0	0	0	0	0	0	0	0	0	0	11.1	0
	5/14	7/12	2/9	0/9	0/14 A	0/12	0/9	0/9	0/14	0/14	0/9	0/9	0/14	0/12	1/9	0/9
G4	60	55	36.8	31.6	30	0	0	0	0	10	0	5.3	0	5	0	5.3
	12/20	11/20	7/19	6/19	6 /20 B∗	0/20	0/19	0/19	0/20	2/20	0/19	1/19	0/20	1/20	0/19	1/19