Table 1.

Patient-related information.

	N° patients (%)	p–value∗
Overall	25 (100%)
Gender
Males	15 (60%)	0.3173
Females	10 (40%)
Age at surgery
43–51	11 (44%)	0.4677
52–60	8 (32%)
61–69	6 (24%)
Smoking habit
Yes	8 (32%)	0.0719
No	17 (68%)
History of periodontal disease
Yes	7 (28%)	0.0278
No	18 (72%)

^∗Chi-square test.