From: Single-crown restorations in premolar–molar regions: short (≤ 6.5) vs longer implants: retrospective cohort study
SiG
CG
p-value
Number of patients (n = 176)
78
88
NA
Number of implants (n = 186)
Age (years; median (range)
56 (20 to 78)
53 (18 to 76)
0.159a
Sex (females (males)
52 (36)
53 (35)
0.878b
Smokers
7
8
0.787b